Initial commit of Fertirrega v6
This commit is contained in:
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/**
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* @file ad5934_driver.c
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* @brief Implementation of AD5934 I2C impedance converter driver.
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*
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* This driver provides functions to configure and read from the AD5934
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* 16-bit, 200kHz I2C impedance converter. The device supports frequency sweep
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* measurements and provides magnitude and phase data.
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*
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* @note Based on AD5934 datasheet – Rev. E – October 2017
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*/
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#include "ad5934_driver.h"
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const float calibrationResistance[3] = {AD5934_GAIN_FACTOR_100R, AD5934_GAIN_FACTOR_1K, AD5934_GAIN_FACTOR_10K};
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int16_t temperature_dut_samples[AD5934_TEMP_AVERAGES][2]={{0},{0}};
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int16_t temperature_ref_samples[AD5934_TEMP_AVERAGES][2]={{0},{0}};
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float temperature_display[AD5934_TEMP_AVERAGES] = {0};
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int16_t ec_dut_samples[AD5934_EC_AVERAGES][2]={{0},{0}};
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int16_t ec_ref_samples_H[AD5934_EC_AVERAGES][2]={{0},{0}};
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int16_t ec_ref_samples_L[AD5934_EC_AVERAGES][2]={{0},{0}};
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float ec_display[AD5934_EC_AVERAGES] = {0};
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/******************************************************************************
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* @brief Set an AD5934 internal register value.
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*
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* @param registerAddress - Address of AD5934 register. LB Byte Address when more than 1 byte
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*
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* @param registerValue - Value of data to be written in the register.
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*
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* @param numberOfBytes - Number of bytes to be written in the register
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*
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* @return None.
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******************************************************************************/
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void AD5934_SetRegisterValue(uint8_t registerAddress, uint32_t registerValue, uint8_t numberOfBytes)
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{
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uint8_t writeData[2] = {0, 0};
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HAL_StatusTypeDef status;
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union Bytes2Long AD5934_reg;
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AD5934_reg.number = registerValue;
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for (uint8_t i = 0; i < numberOfBytes; i++)
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{
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writeData[0] = registerAddress - i;
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writeData[1] = AD5934_reg.bytes[i];
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status = HAL_I2C_Master_Transmit(&hi2c2, AD5934_I2C_ADDRESS, writeData, 2, 5);
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}
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return;
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}
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/******************************************************************************
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* @brief Read an AD5934 internal register value.
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*
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* @param registerAddress - Address of AD5933 register.
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*
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* @param numberOfBytes - Number of bytes to be read from the register.
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*
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* @return Register value.
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******************************************************************************/
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uint32_t AD5934_GetRegisterValue(uint8_t registerAddress, uint8_t numberOfBytes)
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{
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uint8_t readData[1] = {0};
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uint8_t writeData[2]; //= {AD5934_ADDR_POINTER, registerAddress};
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union Bytes2Long AD5934_reg;
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HAL_StatusTypeDef status;
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if(numberOfBytes > 4)
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return 0xFFFFFFFF; //Overflow
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AD5934_reg.number = 0;
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for (uint8_t i = 0; i < numberOfBytes; i++)
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{
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writeData[0] = AD5934_ADDR_POINTER;
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writeData[1] = registerAddress - i;
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status = HAL_I2C_Master_Transmit(&hi2c2, AD5934_I2C_ADDRESS, writeData, 2, 5);
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//HAL_Delay(1);
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readData[0] = 0;
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status = HAL_I2C_Master_Receive(&hi2c2, AD5934_I2C_ADDRESS, readData, 1, 5);
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AD5934_reg.bytes[i]=readData[0];
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}
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/*
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AD5934_value.byte[0] = (uint16_t)(AD5934_reg.number & 0x0000FFFF) + 2048;
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AD5934_value.ints[1] = (uint16_t)((AD5934_reg.number & 0xFFFF0000)>>16) + 2048;
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*/
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return AD5934_reg.number;
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}
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/************************************************************************************
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* @brief Lê um registrador do AD5934 usando a abstração Mem_Read (mais segura).
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*
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* @param regAddr Endereço do registrador no AD5934.
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* @return uint32_t Valor lido do registrador.
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***********************************************************************************/
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uint32_t AD5934_ReadRegister(uint8_t regAddr, uint8_t numberOfBytes)
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{
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uint32_t registerValue = 0;
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uint8_t readData[4] = {0,0,0,0}; // Buffer para receber 16 bits (AD5934 usa regs de 16-bit)
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uint8_t writeData[2] = {AD5934_ADDR_POINTER,regAddr};
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HAL_StatusTypeDef status;
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//Limit buffer size to prevent stack overflow (AD5934 regs are max 4 bytes) */
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if (numberOfBytes > 4)
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{
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return 0xFFFFFFFF;
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}
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status = HAL_I2C_Master_Transmit(&hi2c2, AD5934_I2C_ADDRESS, writeData, 2, 5);
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HAL_Delay(1);
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// Usamos Mem_Read que faz: START -> ADDR+W -> REG_ADDR -> REPEATED_START -> ADDR+R -> DATA -> STOP
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status = HAL_I2C_Mem_Read(&hi2c2, AD5934_I2C_ADDRESS, AD5934_BLOCK_READ, I2C_MEMADD_SIZE_8BIT, readData, numberOfBytes, 5);
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/* 5. Reconstruct value from Big-Endian buffer */
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for (uint8_t i = 0; i < numberOfBytes; i++)
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{
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registerValue = (registerValue << 8) | readData[i];
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}
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return registerValue;
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}
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/******************************************************************************
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* @brief Configure and Start the AD5934 frequency sweep parameters.
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*
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* @param None.
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*
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* @return None.
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******************************************************************************/
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void AD5934_Init(void)
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{
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/************ Config Sweep******************/
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// Place AD5934 in reset
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AD5934_SetRegisterValue(AD5934_CONTROL_REG_LB, (AD5934_CONTROL_FUNCTION(AD5934_RESET)), 1);
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// Configure starting frequency
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AD5934_SetRegisterValue(AD5934_START_FREQ_REG_LB, AD5934_FREQ_1K590HZ, 3);
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// Configure frequency increment step
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AD5934_SetRegisterValue(AD5934_FREQ_INCR_REG_LB, AD5934_FREQ_0HZ, 3);
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// Configure number of steps
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AD5934_SetRegisterValue(AD5934_NR_INCR_REG_LB, AD5934_STEP_FREQ_0, 2);
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// Set 128 Settling Time
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AD5934_SetRegisterValue(AD5934_NR_SETTLE_REG_LB, AD5934_SETTLING_TIME_0S01, 2);
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}
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/******************************************************************************
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* @brief Re-Start the AD5934 frequency sweep parameters.
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*
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* @param None.
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*
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* @return None.
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******************************************************************************/
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void AD5934_RestartSweep(void)
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{
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// Place AD5934 in standby
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AD5934_SetRegisterValue(AD5934_CONTROL_REG_HB, (AD5934_CONTROL_FUNCTION(AD5934_STANDBY) | AD5934_CONTROL_RANGE(AD5934_400mVpp_RANGE) | AD5934_PGA_GAIN(AD5934_PGA_GAIN_X5)), 1);
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// Initialize starting frequency, Start frequency sweep, standby
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AD5934_SetRegisterValue(AD5934_CONTROL_REG_HB, ((AD5934_CONTROL_FUNCTION(AD5934_INIT_START_FREQ)) | AD5934_CONTROL_RANGE(AD5934_400mVpp_RANGE) | AD5934_PGA_GAIN(AD5934_PGA_GAIN_X5)), 1);
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// Configure Range Output, PGA gain andPlace AD5934 in sweep
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AD5934_SetRegisterValue(AD5934_CONTROL_REG_HB, (AD5934_CONTROL_FUNCTION(AD5934_START_FREQ_SWEEP) | AD5934_CONTROL_RANGE(AD5934_400mVpp_RANGE) | AD5934_PGA_GAIN(AD5934_PGA_GAIN_X5)), 1);
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// Wait for data to be valid
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AD5934_Wait_For_Data_Valid();
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// Power Down
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AD5934_SetRegisterValue(AD5934_CONTROL_REG_HB, (AD5934_CONTROL_FUNCTION(AD5934_POWER_DOWN) | AD5934_CONTROL_RANGE(AD5934_400mVpp_RANGE) | AD5934_PGA_GAIN(AD5934_PGA_GAIN_X5)), 1);
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}
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/******************************************************************************
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* @brief Start the AD5934 frequency sweep parameters.
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*
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* @param: channel = AD5934_CH_REF_100R, AD5934_CH_REF_1K, AD5934_CH_REF_10K, AD5934_CH_PT100, AD5934_CH_PT1000 or AD5934_CH_EC
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*
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* @return Real(int16) and Imaginary(int16) numbers into a int32.
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******************************************************************************/
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uint32_t AD5934_Sweep(void)
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{
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int16_t real_value, imag_value;
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uint32_t value=0;
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// Restart Sweeping
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AD5934_RestartSweep();
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real_value = ((AD5934_GetRegisterValue(AD5934_REAL_REG_LB,2)));
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imag_value = ((AD5934_GetRegisterValue(AD5934_IMG_REG_LB,2)));
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// Get Real (16-bit) and Imaginary (16-bit) values into an unsigned 32-bit
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value = ((((uint16_t)(imag_value))<<16) | ((uint16_t)(real_value)));
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return value;
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}
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/******************************************************************************
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* @brief Calculate Temperature.
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*
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* @param channel - AD5934_CH_PT100 or AD5934_CH_PT1000.
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*
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* @return impedance.
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******************************************************************************/
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float AD5934_GetTemperature(void)
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{
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uint8_t i, channel;
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uint32_t sample;
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int32_t ref_sum[2], dut_sum[2];
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float real_ref,imag_ref, real_dut, imag_dut, ratio, discriminant, mag_dut, mag_ref, ratio_mag, impedance_dut, temperature_sum;
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if(HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_7) == GPIO_PIN_SET) // OFF = PT1000, ON = PT100, PA7 has internal pull-up and switch connects to GND
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channel = AD5934_CH_PT100;
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else
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channel = AD5934_CH_PT1000;
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ADG715_Update(channel + AD5934_CH_DELTA); // Set the Reference Resistor on board in the Analog Mux
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HAL_Delay(2); //Wait a little
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sample = AD5934_Sweep(); // Get Reference Resistor Values from ADC
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// Move values in the vectors
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for (i = (AD5934_TEMP_AVERAGES-1); i > 0; i--)
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{
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temperature_ref_samples[i][0] = temperature_ref_samples[i-1][0]; //real
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temperature_ref_samples[i][1] = temperature_ref_samples[i-1][1]; //imag
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}
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// Read real and imaginary data
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temperature_ref_samples[0][0] = (int16_t)(sample & 0x0000FFFF); //real
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//temperature_ref_samples[0][1] = 0xFFFF-(((sample & 0xFFFF0000)>>16)); //imag
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temperature_ref_samples[0][1] = (int16_t)((sample & 0xFFFF0000)>>16); //imag
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// Sum values in the vectors
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for (i = 0, ref_sum[0]=0, ref_sum[1]=0; i < AD5934_TEMP_AVERAGES; i++)
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{
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ref_sum[0] += (int32_t)temperature_ref_samples[i][0]; //real
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ref_sum[1] += (int32_t)temperature_ref_samples[i][1]; //imag
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}
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real_ref = ((float)ref_sum[0])/((float)AD5934_TEMP_AVERAGES);
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imag_ref = ((float)ref_sum[1])/((float)AD5934_TEMP_AVERAGES);
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// Calculate gain factor impedance
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mag_ref = sqrtf((real_ref * real_ref) + (imag_ref * imag_ref));
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ADG715_Update(channel);
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HAL_Delay(2);
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sample = AD5934_Sweep(); // Get PT100/PT1000 Values from ADC
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for (i = (AD5934_TEMP_AVERAGES-1); i > 0; i--)
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{
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temperature_dut_samples[i][0] = temperature_dut_samples[i-1][0]; //real
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temperature_dut_samples[i][1] = temperature_dut_samples[i-1][1]; //imag
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}
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// Read real and imaginary data
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temperature_dut_samples[0][0] = (int16_t)(sample & 0x0000FFFF); //real
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//temperature_dut_samples[0][1] = 0xFFFF-(((sample & 0xFFFF0000)>>16)); //imag
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temperature_dut_samples[0][1] = (int16_t)((sample & 0xFFFF0000)>>16); //imag
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for (i = 0, dut_sum[0]=0, dut_sum[1]=0; i < AD5934_TEMP_AVERAGES; i++)
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{
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dut_sum[0] += (int32_t)temperature_dut_samples[i][0]; //real
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dut_sum[1] += (int32_t)temperature_dut_samples[i][1]; //imag
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}
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real_dut = ((float)dut_sum[0])/((float)AD5934_TEMP_AVERAGES);
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imag_dut = ((float)dut_sum[1])/((float)AD5934_TEMP_AVERAGES);
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// Calculate magnitude
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mag_dut = sqrtf((real_dut * real_dut) + (imag_dut * imag_dut));
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for (i = (AD5934_TEMP_AVERAGES-1); i > 0; i--)
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temperature_display[i] = temperature_display[i-1];
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ratio_mag = mag_ref / mag_dut;
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if(channel==AD5934_CH_PT100)
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impedance_dut = AD5934_Linear_Correction((calibrationResistance[channel & 0x0F]) * ratio_mag);
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else
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impedance_dut = (calibrationResistance[channel & 0x0F]) * ratio_mag;
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// Calculate impedance ratio with the Reference Resistor
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ratio = impedance_dut / (calibrationResistance[channel & 0x0F]);
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// Calculate impedance discriminant with the ratio
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discriminant = (AD5934_RTD_A*AD5934_RTD_A)-(4.0f * AD5934_RTD_B * (1.0f - ratio));
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// Calculate new temperature with the discriminant
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temperature_display[0] = (-AD5934_RTD_A + sqrtf(discriminant))/(2.0f * AD5934_RTD_B);
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// Sum of all temperatures
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for (i = 0, temperature_sum=0.0f; i < AD5934_TEMP_AVERAGES; i++)
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temperature_sum += temperature_display[i];
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// Is the temperature stable?
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if(temperature_display[0]>0.0f && (abs(temperature_display[0]-temperature_display[AD5934_TEMP_AVERAGES-1])/temperature_display[0])<0.1f)
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return(AD5934_Round_Float_Precision(temperature_sum/((float)AD5934_TEMP_AVERAGES),1)); // Sum / number of averages
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else
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return 0.0f; //instable values return always 0
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}
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/******************************************************************************
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* @brief Calculate impedance.
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*
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* @param none.
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*
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* @return impedance.
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******************************************************************************/
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float AD5934_GetImpedance(void)
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{
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uint8_t i, channel;
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uint32_t sample_H, sample_L, sample_dut;
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int32_t ref_sum_H[2], ref_sum_L[2], dut_sum[2];
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float real_number, imag_number, mag_dut, mag_ref_H, mag_ref_L, gain_factor_H, gain_factor_L, gain_factor_dut, slope, admittance;
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/* STEP 1: Two points reference curve */
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ADG715_Update(AD5934_CH_REF_1K); // Set the Reference for High Resistor on board in the Analog Mux
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HAL_Delay(2); //Wait a little
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sample_H = AD5934_Sweep(); // Get Reference Resistor 1 from ADC
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ADG715_Update(AD5934_CH_REF_100R); // Set the Reference for Low Resistor on board in the Analog Mux
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HAL_Delay(2); //Wait a little
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sample_L = AD5934_Sweep(); // Get Reference Resistor 2 from ADC
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// Move values in the vectors
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for (i = (AD5934_EC_AVERAGES-1); i > 0; i--)
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{
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ec_ref_samples_H[i][0] = ec_ref_samples_H[i-1][0]; //real
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ec_ref_samples_H[i][1] = ec_ref_samples_H[i-1][1]; //imag
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ec_ref_samples_L[i][0] = ec_ref_samples_L[i-1][0]; //real
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ec_ref_samples_L[i][1] = ec_ref_samples_L[i-1][1]; //imag
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}
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// Read real and imaginary data
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ec_ref_samples_H[0][0] = (int16_t)(sample_H & 0x0000FFFF); //real
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ec_ref_samples_H[0][1] = (int16_t)((sample_H & 0xFFFF0000)>>16); //imag
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//ec_ref_samples_H[0][1] = (int16_t)((0xFFFF - (sample_H & 0xFFFF0000)>>16)); //imag
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// Read real and imaginary data
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ec_ref_samples_L[0][0] = (int16_t)(sample_L & 0x0000FFFF); //real
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ec_ref_samples_L[0][1] = (int16_t)((sample_L & 0xFFFF0000)>>16); //imag
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//ec_ref_samples_L[0][1] = (int16_t)((0xFFFF - (sample_L & 0xFFFF0000)>>16)); //imag
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// Sum values in the vectors
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for (i = 0, ref_sum_H[0]=0, ref_sum_H[1]=0, ref_sum_L[0]=0, ref_sum_L[1]=0; i < AD5934_EC_AVERAGES; i++)
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{
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ref_sum_H[0] += (int32_t)ec_ref_samples_H[i][0]; //real
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ref_sum_H[1] += (int32_t)ec_ref_samples_H[i][1]; //imag
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ref_sum_L[0] += (int32_t)ec_ref_samples_L[i][0]; //real
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ref_sum_L[1] += (int32_t)ec_ref_samples_L[i][1]; //imag
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}
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real_number = ((float)ref_sum_H[0])/((float)AD5934_EC_AVERAGES);
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imag_number = ((float)ref_sum_H[1])/((float)AD5934_EC_AVERAGES);
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// Calculate gain factor impedance
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mag_ref_H = sqrtf((real_number * real_number) + (imag_number * imag_number));
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if(mag_ref_H > 0.0f)
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gain_factor_H = 1.0f / (1000.0f * mag_ref_H);
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else
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gain_factor_H = 0.0f;
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real_number = ((float)ref_sum_L[0])/((float)AD5934_EC_AVERAGES);
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||||
imag_number = ((float)ref_sum_L[1])/((float)AD5934_EC_AVERAGES);
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||||
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// Calculate gain factor impedance
|
||||
mag_ref_L = sqrtf((real_number * real_number) + (imag_number * imag_number));
|
||||
|
||||
if(mag_ref_L > 0.0f)
|
||||
gain_factor_L = 1.0f / (100.0f * mag_ref_L);
|
||||
else
|
||||
gain_factor_L = 0.0f;
|
||||
|
||||
|
||||
/* STEP 2: Set the Amplification related to the maximum set value */
|
||||
|
||||
if(HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_6) == GPIO_PIN_SET) // PA6 has internal pull-up and the Switch connects to GND
|
||||
channel = AD5934_CH_EC_5MS; // Switch OFF = 5 mS/cm
|
||||
else
|
||||
channel = AD5934_CH_EC_10MS; // Switch ON = 10 mS/cm
|
||||
|
||||
ADG715_Update(channel);
|
||||
HAL_Delay(2);
|
||||
|
||||
sample_dut = AD5934_Sweep(); // Get PT100/PT1000 Values from ADC
|
||||
|
||||
|
||||
for (i = (AD5934_EC_AVERAGES-1); i > 0; i--)
|
||||
{
|
||||
ec_dut_samples[i][0] = ec_dut_samples[i-1][0]; //real
|
||||
ec_dut_samples[i][1] = ec_dut_samples[i-1][1]; //imag
|
||||
}
|
||||
|
||||
// Read real and imaginary data
|
||||
ec_dut_samples[0][0] = (int16_t)(sample_dut & 0x0000FFFF); //real
|
||||
ec_dut_samples[0][1] = (int16_t)((sample_dut & 0xFFFF0000)>>16); //imag
|
||||
//ec_dut_samples[0][1] = (int16_t)((0xFFFF - (sample_dut & 0xFFFF0000)>>16)); //imag
|
||||
|
||||
for (i = 0, dut_sum[0]=0, dut_sum[1]=0; i < AD5934_EC_AVERAGES; i++)
|
||||
{
|
||||
dut_sum[0] += (int32_t)ec_dut_samples[i][0]; //real
|
||||
dut_sum[1] += (int32_t)ec_dut_samples[i][1]; //imag
|
||||
}
|
||||
|
||||
real_number = ((float)dut_sum[0])/((float)AD5934_EC_AVERAGES);
|
||||
imag_number = ((float)dut_sum[1])/((float)AD5934_EC_AVERAGES);
|
||||
|
||||
// Calculate unknown magnitude
|
||||
mag_dut = sqrtf((real_number * real_number) + (imag_number * imag_number));
|
||||
|
||||
// Calculate gain factor for the unknown magnitude
|
||||
|
||||
if(mag_ref_H != mag_ref_L)
|
||||
slope = ((gain_factor_H - gain_factor_L)/(mag_ref_H - mag_ref_L));
|
||||
//slope = ((gain_factor_H - gain_factor_L)/(log10f(mag_ref_H) - log10f(mag_ref_L)));
|
||||
else
|
||||
return 0.0f;
|
||||
|
||||
//gain_factor_dut = gain_factor_L + (log10f(mag_dut) - log10f(mag_ref_L)) * slope;
|
||||
gain_factor_dut = gain_factor_L + (mag_dut - mag_ref_L) * slope;
|
||||
|
||||
// Calculate and return admittance in mS
|
||||
return(10.0f * mag_dut * gain_factor_dut);
|
||||
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* @brief Monitora o status com TIMEOUT para evitar travamento do sistema.
|
||||
*/
|
||||
void AD5934_Wait_For_Data_Valid(void)
|
||||
{
|
||||
uint32_t timeout_counter = 0;
|
||||
const uint32_t MAX_TIMEOUT = 10000; // Limite de tentativas
|
||||
uint8_t status;
|
||||
|
||||
while (1)
|
||||
{
|
||||
status = (uint8_t)AD5934_GetRegisterValue(AD5934_STATUS_REG, 1);
|
||||
|
||||
if ((status & AD5934_STATUS_DATA_VALID) != 0)
|
||||
{
|
||||
break; // Sucesso!
|
||||
}
|
||||
|
||||
timeout_counter++;
|
||||
if (timeout_counter >= MAX_TIMEOUT)
|
||||
{
|
||||
// TRATAMENTO DE ERRO: O sistema não travou, mas o chip falhou.
|
||||
break;
|
||||
}
|
||||
|
||||
HAL_Delay(1); // Pequeno delay para não sobrecarregar o barramento I2C
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* @brief Reduz a precisão decimal de um float através de truncamento.
|
||||
*
|
||||
* @param valor O valor float original.
|
||||
* @param casas_decimais Quantidade de casas que devem permanecer após a vírgula.
|
||||
* @return float O valor com as casas decimais excedentes removidas.
|
||||
*/
|
||||
float AD5934_Round_Float_Precision(float value, uint8_t number_of_decimals)
|
||||
{
|
||||
float multiply = 1.0f;
|
||||
|
||||
for (uint8_t i = 0; i < number_of_decimals; i++)
|
||||
multiply *= 10.0f;
|
||||
|
||||
return roundf(value * multiply) / multiply;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* @brief Performs a linear transformation optimized to match the provided dataset.
|
||||
*
|
||||
* This function implements a linear regression model: y = mx + c
|
||||
* Derived from least squares fitting of the input/output pairs:
|
||||
* m (slope) ≈ 1.02236
|
||||
* c (offset) ≈ -2.1163
|
||||
*
|
||||
* The implementation is branchless (no conditionals) to ensure constant
|
||||
* execution time (O(1)) and prevent pipeline stalls in ARM Cortex-M3.
|
||||
*
|
||||
* @param input_val The raw float value from sensor/ADC.
|
||||
* @return float The transformed value following the requested trend.
|
||||
*/
|
||||
float AD5934_Linear_Correction(float raw_value)
|
||||
{
|
||||
/* Pre-calculated constants from regression analysis */
|
||||
const float slope = 1.02281f;
|
||||
const float offset = (-2.1409f);
|
||||
|
||||
/* Single FPU instruction (if FPU available) or optimized software float mul/add */
|
||||
return (raw_value * slope) + offset;
|
||||
}
|
||||
|
||||
/*****************************************************************************
|
||||
* ADG715
|
||||
*****************************************************************************
|
||||
* @brief Writes data into a register.
|
||||
*
|
||||
* @param registerAddress - Address of the register.
|
||||
* @param registerValue - Data value to write.
|
||||
* @param bytesNumber - Number of bytes.
|
||||
*
|
||||
* @return None.
|
||||
*******************************************************************************/
|
||||
|
||||
void ADG715_SetRegisterValue(char value)
|
||||
{
|
||||
uint8_t writeData[1] = {value};
|
||||
HAL_StatusTypeDef status;
|
||||
|
||||
status = HAL_I2C_Master_Transmit(&hi2c2, ADG715_I2C_ADDRESS, writeData, 1, 1);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
void ADG715_SetChannels(uint8_t ch1, uint8_t ch2)
|
||||
{
|
||||
ADG715_SetRegisterValue(ch1+ch2);
|
||||
}
|
||||
|
||||
void ADG715_ResetChannels(void)
|
||||
{
|
||||
ADG715_SetRegisterValue(0);
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
* @brief Update Channels on the ADG715 and stop-start AD5934.
|
||||
*
|
||||
* @param: channel = AD5934_CH_REF_100R, AD5934_CH_REF_1K, AD5934_CH_REF_10K, AD5934_CH_PT100, AD5934_CH_PT1000 or AD5934_CH_EC
|
||||
*
|
||||
* @return none.
|
||||
******************************************************************************/
|
||||
void ADG715_Update(uint8_t channel)
|
||||
{
|
||||
HAL_StatusTypeDef status;
|
||||
|
||||
// Disconnect all Analog Switches
|
||||
ADG715_ResetChannels();
|
||||
|
||||
// Set the pair of connections
|
||||
if(channel == AD5934_CH_REF_100R)
|
||||
{
|
||||
ADG715_SetChannels(ADG715_SW1, ADG715_SW4); // Rf = 150R, Ch = Ref_100R
|
||||
}
|
||||
else if(channel == AD5934_CH_REF_1K)
|
||||
{
|
||||
ADG715_SetChannels(ADG715_SW2, ADG715_SW5); // Rf = 1k5, Ch = Ref_1k
|
||||
}
|
||||
else if(channel == AD5934_CH_REF_10K)
|
||||
{
|
||||
ADG715_SetChannels(ADG715_SW3, ADG715_SW6); // Rf = 6k2, Ch = Ref_10k
|
||||
}
|
||||
else if(channel == AD5934_CH_PT100)
|
||||
{
|
||||
ADG715_SetChannels(ADG715_SW1, ADG715_SW7); // Rf = 150R, Ch = PT100
|
||||
}
|
||||
else if(channel == AD5934_CH_PT1000)
|
||||
{
|
||||
ADG715_SetChannels(ADG715_SW2, ADG715_SW7); // Rf = 1k5, Ch = PT1000
|
||||
}
|
||||
else if(channel == AD5934_CH_EC_10MS)
|
||||
{
|
||||
ADG715_SetChannels(ADG715_SW2, ADG715_SW8); // Rf = 1k5, Ch = EC 10 mS/cm Max
|
||||
}
|
||||
else if(channel == AD5934_CH_EC_5MS)
|
||||
{
|
||||
ADG715_SetChannels(ADG715_SW3, ADG715_SW8); // Rf = 6k2, Ch = EC 5 mS/cm Max
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
@@ -0,0 +1,205 @@
|
||||
/* USER CODE BEGIN Header */
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file adc.c
|
||||
* @brief This file provides code for the configuration
|
||||
* of the ADC instances.
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* Copyright (c) 2026 STMicroelectronics.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software is licensed under terms that can be found in the LICENSE file
|
||||
* in the root directory of this software component.
|
||||
* If no LICENSE file comes with this software, it is provided AS-IS.
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
/* USER CODE END Header */
|
||||
/* Includes ------------------------------------------------------------------*/
|
||||
#include "adc.h"
|
||||
|
||||
/* USER CODE BEGIN 0 */
|
||||
|
||||
/* USER CODE END 0 */
|
||||
|
||||
ADC_HandleTypeDef hadc1;
|
||||
ADC_HandleTypeDef hadc2;
|
||||
|
||||
/* ADC1 init function */
|
||||
void MX_ADC1_Init(void)
|
||||
{
|
||||
|
||||
/* USER CODE BEGIN ADC1_Init 0 */
|
||||
|
||||
/* USER CODE END ADC1_Init 0 */
|
||||
|
||||
ADC_ChannelConfTypeDef sConfig = {0};
|
||||
|
||||
/* USER CODE BEGIN ADC1_Init 1 */
|
||||
|
||||
/* USER CODE END ADC1_Init 1 */
|
||||
|
||||
/** Common config
|
||||
*/
|
||||
hadc1.Instance = ADC1;
|
||||
hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE;
|
||||
hadc1.Init.ContinuousConvMode = DISABLE;
|
||||
hadc1.Init.DiscontinuousConvMode = DISABLE;
|
||||
hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
|
||||
hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
|
||||
hadc1.Init.NbrOfConversion = 1;
|
||||
if (HAL_ADC_Init(&hadc1) != HAL_OK)
|
||||
{
|
||||
Error_Handler();
|
||||
}
|
||||
|
||||
/** Configure Regular Channel
|
||||
*/
|
||||
sConfig.Channel = ADC_CHANNEL_0;
|
||||
sConfig.Rank = ADC_REGULAR_RANK_1;
|
||||
sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
|
||||
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
|
||||
{
|
||||
Error_Handler();
|
||||
}
|
||||
/* USER CODE BEGIN ADC1_Init 2 */
|
||||
|
||||
/* USER CODE END ADC1_Init 2 */
|
||||
|
||||
}
|
||||
/* ADC2 init function */
|
||||
void MX_ADC2_Init(void)
|
||||
{
|
||||
|
||||
/* USER CODE BEGIN ADC2_Init 0 */
|
||||
|
||||
/* USER CODE END ADC2_Init 0 */
|
||||
|
||||
ADC_ChannelConfTypeDef sConfig = {0};
|
||||
|
||||
/* USER CODE BEGIN ADC2_Init 1 */
|
||||
|
||||
/* USER CODE END ADC2_Init 1 */
|
||||
|
||||
/** Common config
|
||||
*/
|
||||
hadc2.Instance = ADC2;
|
||||
hadc2.Init.ScanConvMode = ADC_SCAN_DISABLE;
|
||||
hadc2.Init.ContinuousConvMode = DISABLE;
|
||||
hadc2.Init.DiscontinuousConvMode = DISABLE;
|
||||
hadc2.Init.ExternalTrigConv = ADC_SOFTWARE_START;
|
||||
hadc2.Init.DataAlign = ADC_DATAALIGN_RIGHT;
|
||||
hadc2.Init.NbrOfConversion = 1;
|
||||
if (HAL_ADC_Init(&hadc2) != HAL_OK)
|
||||
{
|
||||
Error_Handler();
|
||||
}
|
||||
|
||||
/** Configure Regular Channel
|
||||
*/
|
||||
sConfig.Channel = ADC_CHANNEL_1;
|
||||
sConfig.Rank = ADC_REGULAR_RANK_1;
|
||||
sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
|
||||
if (HAL_ADC_ConfigChannel(&hadc2, &sConfig) != HAL_OK)
|
||||
{
|
||||
Error_Handler();
|
||||
}
|
||||
/* USER CODE BEGIN ADC2_Init 2 */
|
||||
|
||||
/* USER CODE END ADC2_Init 2 */
|
||||
|
||||
}
|
||||
|
||||
void HAL_ADC_MspInit(ADC_HandleTypeDef* adcHandle)
|
||||
{
|
||||
|
||||
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
||||
if(adcHandle->Instance==ADC1)
|
||||
{
|
||||
/* USER CODE BEGIN ADC1_MspInit 0 */
|
||||
|
||||
/* USER CODE END ADC1_MspInit 0 */
|
||||
/* ADC1 clock enable */
|
||||
__HAL_RCC_ADC1_CLK_ENABLE();
|
||||
|
||||
__HAL_RCC_GPIOA_CLK_ENABLE();
|
||||
/**ADC1 GPIO Configuration
|
||||
PA0-WKUP ------> ADC1_IN0
|
||||
PA1 ------> ADC1_IN1
|
||||
*/
|
||||
GPIO_InitStruct.Pin = AIN1_Pin|AIN2_Pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
|
||||
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
|
||||
|
||||
/* USER CODE BEGIN ADC1_MspInit 1 */
|
||||
|
||||
/* USER CODE END ADC1_MspInit 1 */
|
||||
}
|
||||
else if(adcHandle->Instance==ADC2)
|
||||
{
|
||||
/* USER CODE BEGIN ADC2_MspInit 0 */
|
||||
|
||||
/* USER CODE END ADC2_MspInit 0 */
|
||||
/* ADC2 clock enable */
|
||||
__HAL_RCC_ADC2_CLK_ENABLE();
|
||||
|
||||
__HAL_RCC_GPIOA_CLK_ENABLE();
|
||||
/**ADC2 GPIO Configuration
|
||||
PA1 ------> ADC2_IN1
|
||||
*/
|
||||
GPIO_InitStruct.Pin = AIN2_Pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
|
||||
HAL_GPIO_Init(AIN2_GPIO_Port, &GPIO_InitStruct);
|
||||
|
||||
/* USER CODE BEGIN ADC2_MspInit 1 */
|
||||
|
||||
/* USER CODE END ADC2_MspInit 1 */
|
||||
}
|
||||
}
|
||||
|
||||
void HAL_ADC_MspDeInit(ADC_HandleTypeDef* adcHandle)
|
||||
{
|
||||
|
||||
if(adcHandle->Instance==ADC1)
|
||||
{
|
||||
/* USER CODE BEGIN ADC1_MspDeInit 0 */
|
||||
|
||||
/* USER CODE END ADC1_MspDeInit 0 */
|
||||
/* Peripheral clock disable */
|
||||
__HAL_RCC_ADC1_CLK_DISABLE();
|
||||
|
||||
/**ADC1 GPIO Configuration
|
||||
PA0-WKUP ------> ADC1_IN0
|
||||
PA1 ------> ADC1_IN1
|
||||
*/
|
||||
HAL_GPIO_DeInit(GPIOA, AIN1_Pin|AIN2_Pin);
|
||||
|
||||
/* USER CODE BEGIN ADC1_MspDeInit 1 */
|
||||
|
||||
/* USER CODE END ADC1_MspDeInit 1 */
|
||||
}
|
||||
else if(adcHandle->Instance==ADC2)
|
||||
{
|
||||
/* USER CODE BEGIN ADC2_MspDeInit 0 */
|
||||
|
||||
/* USER CODE END ADC2_MspDeInit 0 */
|
||||
/* Peripheral clock disable */
|
||||
__HAL_RCC_ADC2_CLK_DISABLE();
|
||||
|
||||
/**ADC2 GPIO Configuration
|
||||
PA1 ------> ADC2_IN1
|
||||
*/
|
||||
HAL_GPIO_DeInit(AIN2_GPIO_Port, AIN2_Pin);
|
||||
|
||||
/* USER CODE BEGIN ADC2_MspDeInit 1 */
|
||||
|
||||
/* USER CODE END ADC2_MspDeInit 1 */
|
||||
}
|
||||
}
|
||||
|
||||
/* USER CODE BEGIN 1 */
|
||||
|
||||
/* USER CODE END 1 */
|
||||
|
||||
@@ -0,0 +1,326 @@
|
||||
/**
|
||||
* @file ads1015_driver.c
|
||||
* @brief Implementation of the ADS1015 I2C ADC driver.
|
||||
*
|
||||
* This driver provides functions to configure and read from the ADS1015
|
||||
* 12-bit, 128 SPS I2C ADC. The device supports up to four single-ended
|
||||
* inputs or two differential inputs.
|
||||
*/
|
||||
|
||||
#include "ads1015_driver.h"
|
||||
#include "main.h" // Assuming HAL is included via main.h
|
||||
|
||||
float temp_calib, ph_compensated, v_ph4=0, v_ph7=0;
|
||||
|
||||
// Write the register
|
||||
static void writeRegister(ADS1015_I2C *i2c, uint8_t reg, uint16_t value) {
|
||||
uint8_t pData[3] = { reg, (uint8_t) (value >> 8), (uint8_t) (value & 0xFF) };
|
||||
HAL_I2C_Master_Transmit(i2c->hi2c, i2c->m_i2cAddress, pData, 3, 10);
|
||||
}
|
||||
|
||||
// Read the register
|
||||
static uint16_t readRegister(ADS1015_I2C *i2c, uint8_t reg) {
|
||||
HAL_I2C_Master_Transmit(i2c->hi2c, i2c->m_i2cAddress, ®, 1, 10);
|
||||
uint8_t pData[2] = { 0, 0 };
|
||||
HAL_I2C_Master_Receive(i2c->hi2c, i2c->m_i2cAddress, pData, 2, 10);
|
||||
return ((pData[0] << 8) | pData[1]);
|
||||
}
|
||||
|
||||
// Check if we have correct connection.
|
||||
static void ADSbegin(ADS1015_I2C *i2c) {
|
||||
if (HAL_I2C_IsDeviceReady(i2c->hi2c, i2c->m_i2cAddress, 10, 10) != HAL_OK)
|
||||
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET); // This MUST have GPIO PA5 ready to use - ERROR I2C - Wrong address
|
||||
|
||||
}
|
||||
|
||||
// Declare an ADS1015 structure
|
||||
void ADS1015(ADS1015_I2C *i2c, I2C_HandleTypeDef *hi2c, uint8_t i2cAddress) {
|
||||
i2c->hi2c = hi2c;
|
||||
i2c->m_i2cAddress = i2cAddress << 1; // It's Important to shift the address << 1
|
||||
i2c->m_conversionDelay = ADS1015_CONVERSIONDELAY;
|
||||
i2c->m_bitShift = 4;
|
||||
i2c->m_gain = GAIN_TWOTHIRDS; /* +/- 6.144V range (limited to VDD +0.3V max!) */
|
||||
//ADSbegin(i2c); //Ready is not used
|
||||
}
|
||||
|
||||
/*
|
||||
* // The ADC input range (or gain) can be changed via the following
|
||||
// functions, but be careful never to exceed VDD +0.3V max, or to
|
||||
// exceed the upper and lower limits if you adjust the input range!
|
||||
// Setting these values incorrectly may destroy your ADC!
|
||||
// ADS1015 ADS1115
|
||||
// ------- -------
|
||||
// ADSsetGain(GAIN_TWOTHIRDS); // 2/3x gain +/- 6.144V 1 bit = 3mV 0.1875mV (default)
|
||||
// ADSsetGain(GAIN_ONE); // 1x gain +/- 4.096V 1 bit = 2mV 0.125mV
|
||||
// ADSsetGain(GAIN_TWO); // 2x gain +/- 2.048V 1 bit = 1mV 0.0625mV
|
||||
// ADSsetGain(GAIN_FOUR); // 4x gain +/- 1.024V 1 bit = 0.5mV 0.03125mV
|
||||
// ADSsetGain(GAIN_EIGHT); // 8x gain +/- 0.512V 1 bit = 0.25mV 0.015625mV
|
||||
// ADSsetGain(GAIN_SIXTEEN); // 16x gain +/- 0.256V 1 bit = 0.125mV 0.0078125mV
|
||||
*/
|
||||
void ADSsetGain(ADS1015_I2C *i2c, adsGain_t gain) {
|
||||
i2c->m_gain = gain;
|
||||
}
|
||||
|
||||
// Get the gain
|
||||
adsGain_t ADSgetGain(ADS1015_I2C *i2c) {
|
||||
return i2c->m_gain;
|
||||
}
|
||||
|
||||
// Gets a single-ended ADC reading from the specified channel
|
||||
uint16_t ADSreadADC_SingleEnded(ADS1015_I2C *i2c, uint8_t channel) {
|
||||
if (channel > 3) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
// Start with default values
|
||||
uint16_t config =
|
||||
ADS1015_REG_CONFIG_CQUE_NONE | // Disable the comparator (default val)
|
||||
ADS1015_REG_CONFIG_CLAT_NONLAT | // Non-latching (default val)
|
||||
ADS1015_REG_CONFIG_CPOL_ACTVLOW | // Alert/Rdy active low (default val)
|
||||
ADS1015_REG_CONFIG_CMODE_TRAD | // Traditional comparator (default val)
|
||||
ADS1015_REG_CONFIG_DR_1600SPS | // 1600 samples per second (default)
|
||||
ADS1015_REG_CONFIG_MODE_SINGLE; // Single-shot mode (default)
|
||||
|
||||
// Set PGA/voltage range
|
||||
config |= i2c->m_gain;
|
||||
|
||||
// Set single-ended input channel
|
||||
switch (channel) {
|
||||
case (0):
|
||||
config |= ADS1015_REG_CONFIG_MUX_SINGLE_0;
|
||||
break;
|
||||
case (1):
|
||||
config |= ADS1015_REG_CONFIG_MUX_SINGLE_1;
|
||||
break;
|
||||
case (2):
|
||||
config |= ADS1015_REG_CONFIG_MUX_SINGLE_2;
|
||||
break;
|
||||
case (3):
|
||||
config |= ADS1015_REG_CONFIG_MUX_SINGLE_3;
|
||||
break;
|
||||
}
|
||||
|
||||
// Set 'start single-conversion' bit
|
||||
config |= ADS1015_REG_CONFIG_OS_SINGLE;
|
||||
|
||||
// Write config register to the ADC
|
||||
writeRegister(i2c, ADS1015_REG_POINTER_CONFIG, config);
|
||||
|
||||
// Wait for the conversion to complete
|
||||
HAL_Delay(i2c->m_conversionDelay);
|
||||
|
||||
// Read the conversion results
|
||||
// Shift 12-bit results right 4 bits for the ADS1015
|
||||
return readRegister(i2c, ADS1015_REG_POINTER_CONVERT) >> i2c->m_bitShift;
|
||||
}
|
||||
|
||||
/*
|
||||
* Reads the conversion results, measuring the voltage
|
||||
* difference between the P (AIN0) and N (AIN1) input. Generates
|
||||
* a signed value since the difference can be either positive or negative.
|
||||
*/
|
||||
int16_t ADSreadADC_Differential_0_1(ADS1015_I2C *i2c) {
|
||||
// Start with default values
|
||||
uint16_t config =
|
||||
ADS1015_REG_CONFIG_CQUE_NONE | // Disable the comparator (default val)
|
||||
ADS1015_REG_CONFIG_CLAT_NONLAT | // Non-latching (default val)
|
||||
ADS1015_REG_CONFIG_CPOL_ACTVLOW | // Alert/Rdy active low (default val)
|
||||
ADS1015_REG_CONFIG_CMODE_TRAD | // Traditional comparator (default val)
|
||||
ADS1015_REG_CONFIG_DR_128SPS | // 128 samples per second (default)
|
||||
ADS1015_REG_CONFIG_MODE_SINGLE; // Single-shot mode (default)
|
||||
|
||||
// Set PGA/voltage range
|
||||
config |= i2c->m_gain;
|
||||
|
||||
// Set channels
|
||||
config |= ADS1015_REG_CONFIG_MUX_DIFF_0_1; // AIN0 = P, AIN1 = N
|
||||
|
||||
// Set 'start single-conversion' bit
|
||||
config |= ADS1015_REG_CONFIG_OS_SINGLE;
|
||||
|
||||
// Write config register to the ADC
|
||||
writeRegister(i2c, ADS1015_REG_POINTER_CONFIG, config);
|
||||
|
||||
// Wait for the conversion to complete
|
||||
HAL_Delay(i2c->m_conversionDelay);
|
||||
|
||||
// Read the conversion results
|
||||
uint16_t res = readRegister(i2c, ADS1015_REG_POINTER_CONVERT) >> i2c->m_bitShift;
|
||||
if (i2c->m_bitShift == 0) {
|
||||
return (int16_t) res;
|
||||
} else {
|
||||
// Shift 12-bit results right 4 bits for the ADS1015,
|
||||
// making sure we keep the sign bit intact
|
||||
if (res > 0x07FF) {
|
||||
// negative number - extend the sign to 16th bit
|
||||
res |= 0xF000;
|
||||
}
|
||||
return (int16_t) res;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Reads the conversion results, measuring the voltage
|
||||
* difference between the P (AIN2) and N (AIN3) input. Generates
|
||||
* a signed value since the difference can be either positive or negative.
|
||||
*/
|
||||
int16_t ADSreadADC_Differential_2_3(ADS1015_I2C *i2c) {
|
||||
// Start with default values
|
||||
uint16_t config =
|
||||
ADS1015_REG_CONFIG_CQUE_NONE | // Disable the comparator (default val)
|
||||
ADS1015_REG_CONFIG_CLAT_NONLAT | // Non-latching (default val)
|
||||
ADS1015_REG_CONFIG_CPOL_ACTVLOW | // Alert/Rdy active low (default val)
|
||||
ADS1015_REG_CONFIG_CMODE_TRAD | // Traditional comparator (default val)
|
||||
ADS1015_REG_CONFIG_DR_1600SPS | // 1600 samples per second (default)
|
||||
ADS1015_REG_CONFIG_MODE_SINGLE; // Single-shot mode (default)
|
||||
|
||||
// Set PGA/voltage range
|
||||
config |= i2c->m_gain;
|
||||
|
||||
// Set channels
|
||||
config |= ADS1015_REG_CONFIG_MUX_DIFF_2_3; // AIN2 = P, AIN3 = N
|
||||
|
||||
// Set 'start single-conversion' bit
|
||||
config |= ADS1015_REG_CONFIG_OS_SINGLE;
|
||||
|
||||
// Write config register to the ADC
|
||||
writeRegister(i2c, ADS1015_REG_POINTER_CONFIG, config);
|
||||
|
||||
// Wait for the conversion to complete
|
||||
HAL_Delay(i2c->m_conversionDelay);
|
||||
|
||||
// Read the conversion results
|
||||
uint16_t res = readRegister(i2c, ADS1015_REG_POINTER_CONVERT) >> i2c->m_bitShift;
|
||||
if (i2c->m_bitShift == 0) {
|
||||
return (int16_t) res;
|
||||
} else {
|
||||
// Shift 12-bit results right 4 bits for the ADS1015,
|
||||
// making sure we keep the sign bit intact
|
||||
if (res > 0x07FF) {
|
||||
// negative number - extend the sign to 16th bit
|
||||
res |= 0xF000;
|
||||
}
|
||||
return (int16_t) res;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Sets up the comparator to operate in basic mode, causing the
|
||||
* ALERT/RDY pin to assert (go from high to low) when the ADC
|
||||
* value exceeds the specified threshold.
|
||||
* This will also set the ADC in continuous conversion mode.
|
||||
*/
|
||||
void ADSstartComparator_SingleEnded(ADS1015_I2C *i2c, uint8_t channel, int16_t threshold) {
|
||||
// Start with default values
|
||||
uint16_t config =
|
||||
ADS1015_REG_CONFIG_CQUE_1CONV | // Comparator enabled and asserts on 1 match
|
||||
ADS1015_REG_CONFIG_CLAT_LATCH | // Latching mode
|
||||
ADS1015_REG_CONFIG_CPOL_ACTVLOW | // Alert/Rdy active low (default val)
|
||||
ADS1015_REG_CONFIG_CMODE_TRAD | // Traditional comparator (default val)
|
||||
ADS1015_REG_CONFIG_DR_1600SPS | // 1600 samples per second (default)
|
||||
ADS1015_REG_CONFIG_MODE_CONTIN | // Continuous conversion mode
|
||||
ADS1015_REG_CONFIG_MODE_CONTIN; // Continuous conversion mode
|
||||
|
||||
// Set PGA/voltage range
|
||||
config |= i2c->m_gain;
|
||||
|
||||
// Set single-ended input channel
|
||||
switch (channel) {
|
||||
case (0):
|
||||
config |= ADS1015_REG_CONFIG_MUX_SINGLE_0;
|
||||
break;
|
||||
case (1):
|
||||
config |= ADS1015_REG_CONFIG_MUX_SINGLE_1;
|
||||
break;
|
||||
case (2):
|
||||
config |= ADS1015_REG_CONFIG_MUX_SINGLE_2;
|
||||
break;
|
||||
case (3):
|
||||
config |= ADS1015_REG_CONFIG_MUX_SINGLE_3;
|
||||
break;
|
||||
}
|
||||
|
||||
// Set the high threshold register
|
||||
// Shift 12-bit results left 4 bits for the ADS1015
|
||||
writeRegister(i2c, ADS1015_REG_POINTER_HITHRESH, threshold << i2c->m_bitShift);
|
||||
|
||||
// Write config register to the ADC
|
||||
writeRegister(i2c, ADS1015_REG_POINTER_CONFIG, config);
|
||||
}
|
||||
|
||||
/*
|
||||
* In order to clear the comparator, we need to read the conversion results.
|
||||
* This function reads the last conversion results without changing the config value.
|
||||
*/
|
||||
int16_t ADSgetLastConversionResults(ADS1015_I2C *i2c) {
|
||||
// Wait for the conversion to complete
|
||||
HAL_Delay(i2c->m_conversionDelay);
|
||||
|
||||
// Read the conversion results
|
||||
uint16_t res = readRegister(i2c, ADS1015_REG_POINTER_CONVERT) >> i2c->m_bitShift;
|
||||
if (i2c->m_bitShift == 0) {
|
||||
return (int16_t) res;
|
||||
} else {
|
||||
// Shift 12-bit results right 4 bits for the ADS1015,
|
||||
// making sure we keep the sign bit intact
|
||||
if (res > 0x07FF) {
|
||||
// negative number - extend the sign to 16th bit
|
||||
res |= 0xF000;
|
||||
}
|
||||
return (int16_t) res;
|
||||
}
|
||||
}
|
||||
|
||||
float ADSCalculate_ph_Volts(int16_t adc_raw)
|
||||
{
|
||||
// 1. Converter leitura bruta do ADC para tensão real (Volts)
|
||||
return ((float)adc_raw * ADS1015_ADC_VREF) / ADS1015_ADC_MAX;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* @brief Calcula o valor de pH compensado pela temperatura.
|
||||
*
|
||||
* @param adc_raw Valor bruto lido do ADC (0 a 4095).
|
||||
* @param temp_dut Temperatura atual medida em Celsius.
|
||||
*
|
||||
* @return float Valor de pH calculado (0.0 a 14.0).
|
||||
*/
|
||||
float ADSCalculate_ph_Compensated(int16_t adc_raw, float temp_dut)
|
||||
{
|
||||
|
||||
|
||||
// 1. Converter leitura bruta do ADC para tensão real (Volts)
|
||||
float v_measured = ((float)adc_raw * ADS1015_ADC_VREF) / ADS1015_ADC_MAX;
|
||||
|
||||
// 2. Calcular o Slope original (medido na temperatura da calibração)
|
||||
// Delta pH é fixo em 3.0 (de pH 7 para pH 4)
|
||||
float delta_v_calib = v_ph7 - v_ph4;
|
||||
|
||||
if (delta_v_calib == 0.0f)
|
||||
{
|
||||
return 0.0f; // Proteção contra erro de calibração/divisão por zero
|
||||
}
|
||||
|
||||
float slope_at_calib = 3.0f / delta_v_calib;
|
||||
|
||||
// 3. Calcular o Fator de Correção Térmica (Equação de Nernst)
|
||||
float temp_k_now = temp_dut + ADS1015_KELVIN_OFFSET;
|
||||
float temp_k_ref = temp_calib + ADS1015_KELVIN_OFFSET;
|
||||
|
||||
// Fator: (T_atual / T_referencia)
|
||||
float thermal_factor = temp_k_now / temp_k_ref;
|
||||
|
||||
/*
|
||||
* 4. Cálculo Final do pH
|
||||
* O Slope ajustado para a temperatura atual é: slope_at_calib / thermal_factor
|
||||
* Fórmula: pH = pH_ref + (V_medido - V_ref_7) * Slope_ajustado
|
||||
*/
|
||||
float ph_result = 7.0f + ((v_measured - v_ph7) * (slope_at_calib / thermal_factor));
|
||||
|
||||
// 5. Clamping (Garantir limites físicos)
|
||||
if (ph_result < 0.0f) ph_result = 0.0f;
|
||||
if (ph_result > 14.0f) ph_result = 14.0f;
|
||||
|
||||
return ph_result;
|
||||
}
|
||||
@@ -0,0 +1,127 @@
|
||||
/**
|
||||
* @file analog_loop_driver.c
|
||||
* @brief Driver implementation for current loop analog signal processing.
|
||||
*/
|
||||
|
||||
#include "analog_loop_driver.h"
|
||||
|
||||
// --- Static Variables ---
|
||||
static ADC_HandleTypeDef* s_hadc = NULL;
|
||||
static uint32_t s_raw_value = 0;
|
||||
static int16_t s_voltage_mV = 0;
|
||||
static int16_t s_current_uA = 0;
|
||||
|
||||
/**
|
||||
* @brief Initializes the analog loop driver.
|
||||
*
|
||||
* @param hadc Pointer to the ADC handle structure.
|
||||
* @return HAL_StatusTypeDef HAL status.
|
||||
*/
|
||||
HAL_StatusTypeDef AnalogLoop_Init(ADC_HandleTypeDef *hadc)
|
||||
{
|
||||
if (hadc == NULL)
|
||||
{
|
||||
return HAL_ERROR;
|
||||
}
|
||||
|
||||
s_hadc = hadc;
|
||||
|
||||
// Reset stored values
|
||||
s_raw_value = 0;
|
||||
s_voltage_mV = 0;
|
||||
s_current_uA = 0;
|
||||
|
||||
return HAL_OK;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Gets the raw ADC value from the analog loop.
|
||||
*
|
||||
* @return uint32_t Raw ADC value.
|
||||
*/
|
||||
uint32_t AnalogLoop_GetRawValue(void)
|
||||
{
|
||||
return s_raw_value;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Calculates and returns the current in microamps.
|
||||
*
|
||||
* @return int16_t Current in uA.
|
||||
*/
|
||||
int16_t AnalogLoop_GetCurrent_uA(void)
|
||||
{
|
||||
// Convert raw ADC value to voltage (mV)
|
||||
uint32_t voltage_mV = (s_raw_value * ANALOG_LOOP_VREF_MV) / 4095U;
|
||||
|
||||
// Apply calibration and convert to current (uA)
|
||||
// V_out = I * R2 / R1 => I = (V_out * R1) / R2
|
||||
// Convert to uA: I(uA) = (V_out(mV) * R1(ohms) * 1000) / R2(ohms)
|
||||
uint32_t current_uA = (voltage_mV * ANALOG_LOOP_R1_OHMS * 1000U) / ANALOG_LOOP_R2_OHMS;
|
||||
|
||||
// Clamp to valid range
|
||||
if (current_uA < ANALOG_LOOP_CURRENT_MIN_UA)
|
||||
{
|
||||
current_uA = ANALOG_LOOP_CURRENT_MIN_UA;
|
||||
}
|
||||
else if (current_uA > ANALOG_LOOP_CURRENT_MAX_UA)
|
||||
{
|
||||
current_uA = ANALOG_LOOP_CURRENT_MAX_UA;
|
||||
}
|
||||
|
||||
s_current_uA = (int16_t)current_uA;
|
||||
|
||||
return s_current_uA;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Calculates and returns the voltage in millivolts.
|
||||
*
|
||||
* @return int16_t Voltage in mV.
|
||||
*/
|
||||
int16_t AnalogLoop_GetVoltage_mV(void)
|
||||
{
|
||||
// Convert raw ADC value to voltage (mV)
|
||||
uint32_t voltage_mV = (s_raw_value * ANALOG_LOOP_VREF_MV) / 4095U;
|
||||
|
||||
s_voltage_mV = (int16_t)voltage_mV;
|
||||
|
||||
return s_voltage_mV;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Updates the internal ADC reading.
|
||||
*
|
||||
* This function should be called periodically or when new ADC data is available.
|
||||
*
|
||||
* @return HAL_StatusTypeDef HAL status.
|
||||
*/
|
||||
HAL_StatusTypeDef AnalogLoop_Update(void)
|
||||
{
|
||||
if (s_hadc == NULL)
|
||||
{
|
||||
return HAL_ERROR;
|
||||
}
|
||||
|
||||
// Perform ADC conversion
|
||||
HAL_StatusTypeDef status = HAL_ADC_Start(s_hadc);
|
||||
if (status != HAL_OK)
|
||||
{
|
||||
return status;
|
||||
}
|
||||
|
||||
// Wait for conversion to complete
|
||||
status = HAL_ADC_PollForConversion(s_hadc, HAL_MAX_DELAY);
|
||||
if (status != HAL_OK)
|
||||
{
|
||||
return status;
|
||||
}
|
||||
|
||||
// Get the raw ADC value
|
||||
s_raw_value = HAL_ADC_GetValue(s_hadc);
|
||||
|
||||
// Stop ADC conversion
|
||||
HAL_ADC_Stop(s_hadc);
|
||||
|
||||
return HAL_OK;
|
||||
}
|
||||
@@ -0,0 +1,119 @@
|
||||
/**
|
||||
* @file digital_outputs_driver.c
|
||||
* @brief Simplified Driver implementation for 8 independent open-drain digital outputs
|
||||
* on STM32F103C8T6 using global static state.
|
||||
*/
|
||||
|
||||
#include "digital_outputs_driver.h"
|
||||
|
||||
/**
|
||||
* @brief Internal structure to track pin hardware mapping
|
||||
*/
|
||||
typedef struct {
|
||||
GPIO_TypeDef* port;
|
||||
uint16_t pin;
|
||||
} pin_map_t;
|
||||
|
||||
/**
|
||||
* @brief Static configuration of pins (Hardware Abstraction Layer)
|
||||
*/
|
||||
static const pin_map_t output_pins[OUTPUT_PINS_COUNT] = {
|
||||
{GPIOB, GPIO_PIN_0}, // Index 0
|
||||
{GPIOB, GPIO_PIN_1}, // Index 1
|
||||
{GPIOB, GPIO_PIN_2}, // Index 2
|
||||
{GPIOB, GPIO_PIN_8}, // Index 3
|
||||
{GPIOB, GPIO_PIN_9}, // Index 4
|
||||
{GPIOC, GPIO_PIN_13}, // Index 5
|
||||
{GPIOC, GPIO_PIN_14}, // Index 6
|
||||
{GPIOC, GPIO_PIN_15} // Index 7
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief Static array to track current software state of pins
|
||||
*/
|
||||
static uint8_t pin_states[OUTPUT_PINS_COUNT] = {0};
|
||||
|
||||
/**
|
||||
* @brief Initializes the GPIO hardware and sets initial states.
|
||||
* @note This function replaces the handle-based init.
|
||||
* @retval None
|
||||
*/
|
||||
void digital_outputs_init(void)
|
||||
{
|
||||
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
||||
|
||||
for (int i = 0; i < OUTPUT_PINS_COUNT; i++) {
|
||||
GPIO_InitStruct.Pin = output_pins[i].pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD; // Open-drain
|
||||
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
||||
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
|
||||
|
||||
HAL_GPIO_Init(output_pins[i].port, &GPIO_InitStruct);
|
||||
|
||||
// Force initial state to LOW (Reset)
|
||||
HAL_GPIO_WritePin(output_pins[i].port, output_pins[i].pin, GPIO_PIN_RESET);
|
||||
pin_states[i] = 0;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Sets the state of a specific output pin.
|
||||
* @param pin Index of the pin (0 to OUTPUT_PINS_COUNT-1)
|
||||
* @param state Desired state (0 = LOW, 1 = HIGH)
|
||||
* @retval None
|
||||
*/
|
||||
void digital_outputs_set_state(digital_output_pin_t pin, uint8_t state)
|
||||
{
|
||||
if (pin >= OUTPUT_PINS_COUNT) {
|
||||
return; // Simple boundary protection
|
||||
}
|
||||
|
||||
GPIO_TypeDef* port = output_pins[pin].port;
|
||||
uint16_t pin_mask = output_pins[pin].pin;
|
||||
|
||||
if (state) {
|
||||
HAL_GPIO_WritePin(port, pin_mask, GPIO_PIN_SET);
|
||||
pin_states[pin] = 1;
|
||||
} else {
|
||||
HAL_GPIO_WritePin(port, pin_mask, GPIO_PIN_RESET);
|
||||
pin_states[pin] = 0;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Gets the current state of a specific output pin.
|
||||
* @param pin Index of the pin
|
||||
* @param p_state Pointer to a variable where the state will be stored
|
||||
* @retval None
|
||||
*/
|
||||
void digital_outputs_get_state(digital_output_pin_t pin, uint8_t* p_state)
|
||||
{
|
||||
if ((pin < OUTPUT_PINS_COUNT) && (p_state != NULL)) {
|
||||
*p_state = pin_states[pin];
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Toggles the state of a specific output pin.
|
||||
* @param pin Index of the pin
|
||||
* @retval None
|
||||
*/
|
||||
void digital_outputs_toggle(digital_output_pin_t pin)
|
||||
{
|
||||
if (pin < OUTPUT_PINS_COUNT) {
|
||||
// Simple toggle logic using the internal state array
|
||||
uint8_t new_state = !pin_states[pin];
|
||||
digital_outputs_set_state(pin, new_state);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Resets all outputs to LOW.
|
||||
* @retval None
|
||||
*/
|
||||
void digital_outputs_reset_all(void)
|
||||
{
|
||||
for (int i = 0; i < OUTPUT_PINS_COUNT; i++) {
|
||||
digital_outputs_set_state(i, 0);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,69 @@
|
||||
/**
|
||||
* @file flash_storage.c
|
||||
*/
|
||||
|
||||
#include "flash_manager.h"
|
||||
|
||||
/**
|
||||
* @brief Grava a página inteira de uma vez.
|
||||
* @param pPage Ponteiro para a estrutura de 1KB na RAM.
|
||||
* @return HAL_OK em caso de sucesso.
|
||||
*/
|
||||
HAL_StatusTypeDef Flash_Save_Page(FlashPage_t *pPage) {
|
||||
if (pPage == NULL) return HAL_ERROR;
|
||||
|
||||
HAL_StatusTypeDef status = HAL_OK;
|
||||
|
||||
HAL_FLASH_Unlock();
|
||||
|
||||
// 1. Apagar a página inteira (limpa os 1024 bytes)
|
||||
FLASH_EraseInitTypeDef EraseInitStruct;
|
||||
uint32_t PageError = 0;
|
||||
|
||||
EraseInitStruct.TypeErase = FLASH_TYPEERASE_PAGES;
|
||||
EraseInitStruct.PageAddress = FLASH_PAGE_ADDR;
|
||||
EraseInitStruct.NbPages = 1;
|
||||
|
||||
if (HAL_FLASHEx_Erase(&EraseInitStruct, &PageError) != HAL_OK) {
|
||||
status = HAL_ERROR;
|
||||
goto Exit;
|
||||
}
|
||||
|
||||
// 2. Gravar o bloco de 1KB
|
||||
// Como a estrutura é exatamente 1KB e alinhada, podemos tratar como um array de uint32_t.
|
||||
// O STM32F1 grava preferencialmente em DoubleWord (64-bit), mas HalfWord (16-bit)
|
||||
// funciona de forma segura para qualquer tamanho múltiplo de 2.
|
||||
uint32_t *pSrc = (uint32_t *)pPage;
|
||||
uint32_t *pDest = (uint32_t *)FLASH_PAGE_ADDR;
|
||||
uint32_t iterations = FLASH_PAGE_SIZE / sizeof(uint32_t); // 1024 / 4 = 256 iterações
|
||||
|
||||
for (uint32_t i = 0; i < iterations; i++) {
|
||||
// Usamos o modo de gravação de 32-bit (Word) se disponível,
|
||||
// ou simulamos com duas gravações de 16-bit para máxima compatuidade no F1.
|
||||
if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, (uint32_t)&pDest[i], pSrc[i]) != HAL_OK) {
|
||||
status = HAL_ERROR;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
Exit:
|
||||
HAL_FLASH_Lock();
|
||||
return status;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Lê a página da Flash para a RAM.
|
||||
*/
|
||||
HAL_StatusTypeDef Flash_Load_Page(FlashPage_t *pDest) {
|
||||
if (pDest == NULL) return HAL_ERROR;
|
||||
|
||||
// Leitura direta por memcpy (A Flash é mapeada no espaço de endereçamento comum)
|
||||
memcpy(pDest, (void *)FLASH_PAGE_ADDR, FLASH_PAGE_SIZE);
|
||||
|
||||
// Validação da integridade através do Magic Number
|
||||
if (pDest->magic_number != 0xDEADBEEF) {
|
||||
return HAL_ERROR;
|
||||
}
|
||||
|
||||
return HAL_OK;
|
||||
}
|
||||
@@ -0,0 +1,173 @@
|
||||
/* USER CODE BEGIN Header */
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file gpio.c
|
||||
* @brief This file provides code for the configuration
|
||||
* of all used GPIO pins.
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* Copyright (c) 2026 STMicroelectronics.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software is licensed under terms that can be found in the LICENSE file
|
||||
* in the root directory of this software component.
|
||||
* If no LICENSE file comes with this software, it is provided AS-IS.
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
/* USER CODE END Header */
|
||||
|
||||
/* Includes ------------------------------------------------------------------*/
|
||||
#include "gpio.h"
|
||||
|
||||
/* USER CODE BEGIN 0 */
|
||||
#include "stm32f1xx_hal.h"
|
||||
|
||||
|
||||
|
||||
/* USER CODE END 0 */
|
||||
|
||||
|
||||
/*----------------------------------------------------------------------------*/
|
||||
/* Configure GPIO */
|
||||
/*----------------------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN 1 */
|
||||
|
||||
volatile uint32_t last_interrupt_time=0;
|
||||
volatile uint8_t first_time_state=1;
|
||||
volatile GPIO_PinState original_pin_state = GPIO_PIN_RESET, last_original_pin = GPIO_PIN_SET;
|
||||
volatile int8_t edge_state = NO_EDGE;
|
||||
|
||||
/* USER CODE END 1 */
|
||||
|
||||
/** Configure pins as
|
||||
* Analog
|
||||
* Input
|
||||
* Output
|
||||
* EVENT_OUT
|
||||
* EXTI
|
||||
* Free pins are configured automatically as Analog (this feature is enabled through
|
||||
* the Code Generation settings)
|
||||
*/
|
||||
void MX_GPIO_Init(void)
|
||||
{
|
||||
|
||||
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
||||
|
||||
/* GPIO Ports Clock Enable */
|
||||
__HAL_RCC_GPIOC_CLK_ENABLE();
|
||||
__HAL_RCC_GPIOD_CLK_ENABLE();
|
||||
__HAL_RCC_GPIOA_CLK_ENABLE();
|
||||
__HAL_RCC_GPIOB_CLK_ENABLE();
|
||||
|
||||
/*Configure GPIO pin Output Level */
|
||||
HAL_GPIO_WritePin(GPIOC, DIGI_OUT5_Pin|DIGI_OUT6_Pin|DIGI_OUT7_Pin, GPIO_PIN_RESET);
|
||||
|
||||
/*Configure GPIO pin Output Level */
|
||||
HAL_GPIO_WritePin(GPIOB, DIGI_OUT0_Pin|DIGI_OUT1_Pin|DIGI_OUT2_Pin|LED_Red_Pin
|
||||
|LED_Green_Pin|DIGI_OUT3_Pin|DIGI_OUT4_Pin, GPIO_PIN_RESET);
|
||||
|
||||
/*Configure GPIO pin Output Level */
|
||||
HAL_GPIO_WritePin(TX_EN_RS485_GPIO_Port, TX_EN_RS485_Pin, GPIO_PIN_RESET);
|
||||
|
||||
/*Configure GPIO pins : DIGI_OUT5_Pin DIGI_OUT6_Pin DIGI_OUT7_Pin */
|
||||
GPIO_InitStruct.Pin = DIGI_OUT5_Pin|DIGI_OUT6_Pin|DIGI_OUT7_Pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD;
|
||||
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
||||
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
|
||||
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
|
||||
|
||||
/*Configure GPIO pins : RS485_Addr0_Pin RS485_Addr1_Pin RS485_Addr2_Pin RS485_Addr3_Pin
|
||||
SYS_CFG0_Pin SYS_CFG1_Pin PG_RS485_Pin PG_CE_Pin
|
||||
PG_PH_Pin */
|
||||
GPIO_InitStruct.Pin = RS485_Addr0_Pin|RS485_Addr1_Pin|RS485_Addr2_Pin|RS485_Addr3_Pin
|
||||
|SYS_CFG0_Pin|SYS_CFG1_Pin|PG_RS485_Pin|PG_CE_Pin
|
||||
|PG_PH_Pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
|
||||
GPIO_InitStruct.Pull = GPIO_PULLUP;
|
||||
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
|
||||
|
||||
/*Configure GPIO pins : DIGI_OUT0_Pin DIGI_OUT1_Pin DIGI_OUT2_Pin LED_Red_Pin
|
||||
LED_Green_Pin DIGI_OUT3_Pin DIGI_OUT4_Pin */
|
||||
GPIO_InitStruct.Pin = DIGI_OUT0_Pin|DIGI_OUT1_Pin|DIGI_OUT2_Pin|LED_Red_Pin
|
||||
|LED_Green_Pin|DIGI_OUT3_Pin|DIGI_OUT4_Pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD;
|
||||
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
||||
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
|
||||
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
|
||||
|
||||
/*Configure GPIO pins : RS485_Addr4_Pin RS485_Addr5_Pin RS485_Addr6_Pin RS485_Addr7_Pin */
|
||||
GPIO_InitStruct.Pin = RS485_Addr4_Pin|RS485_Addr5_Pin|RS485_Addr6_Pin|RS485_Addr7_Pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
|
||||
GPIO_InitStruct.Pull = GPIO_PULLUP;
|
||||
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
|
||||
|
||||
/*Configure GPIO pin : TX_EN_RS485_Pin */
|
||||
GPIO_InitStruct.Pin = TX_EN_RS485_Pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
|
||||
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
||||
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
|
||||
HAL_GPIO_Init(TX_EN_RS485_GPIO_Port, &GPIO_InitStruct);
|
||||
|
||||
/*Configure GPIO pin : Calib_PH_Pin */
|
||||
GPIO_InitStruct.Pin = Calib_PH_Pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
|
||||
GPIO_InitStruct.Pull = GPIO_PULLUP;
|
||||
HAL_GPIO_Init(Calib_PH_GPIO_Port, &GPIO_InitStruct);
|
||||
|
||||
/* EXTI interrupt init*/
|
||||
HAL_NVIC_SetPriority(EXTI3_IRQn, 0, 0);
|
||||
HAL_NVIC_EnableIRQ(EXTI3_IRQn);
|
||||
|
||||
}
|
||||
|
||||
/* USER CODE BEGIN 2 */
|
||||
|
||||
/**
|
||||
* @brief EXTI line3 interrupt callback.
|
||||
* @details This function is called by the HAL EXTI IRQ Handler.
|
||||
* It distinguishes between rising and falling edges by reading the pin state.
|
||||
* @param GPIO_Pin: Specifies the pins connected to the EXTI line.
|
||||
* @retval None
|
||||
*/
|
||||
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
|
||||
{
|
||||
if (GPIO_Pin == Calib_PH_Pin)
|
||||
{
|
||||
uint32_t current_time = HAL_GetTick();
|
||||
GPIO_PinState pin_state = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_3);
|
||||
|
||||
if(pin_state != last_original_pin)
|
||||
{
|
||||
if(first_time_state == 1)
|
||||
{
|
||||
original_pin_state = pin_state;
|
||||
first_time_state = 0;
|
||||
}
|
||||
else if(((current_time - last_interrupt_time) > 70U) && (pin_state == original_pin_state))
|
||||
{
|
||||
if(pin_state == GPIO_PIN_RESET)
|
||||
{
|
||||
/* --- LOGIC FOR FALLING EDGE HERE --- */
|
||||
//HAL_GPIO_WritePin(GPIOB, GPIO_PIN_4, GPIO_PIN_SET);
|
||||
//HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_RESET);
|
||||
edge_state = FALLING_EDGE;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* --- LOGIC FOR RISING EDGE HERE --- */
|
||||
//HAL_GPIO_WritePin(GPIOB, GPIO_PIN_4, GPIO_PIN_RESET);
|
||||
//HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_SET);
|
||||
edge_state = RISING_EDGE;
|
||||
}
|
||||
last_interrupt_time = current_time;
|
||||
last_original_pin = original_pin_state;
|
||||
first_time_state = 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* USER CODE END 2 */
|
||||
@@ -0,0 +1,187 @@
|
||||
/* USER CODE BEGIN Header */
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file i2c.c
|
||||
* @brief This file provides code for the configuration
|
||||
* of the I2C instances.
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* Copyright (c) 2026 STMicroelectronics.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software is licensed under terms that can be found in the LICENSE file
|
||||
* in the root directory of this software component.
|
||||
* If no LICENSE file comes with this software, it is provided AS-IS.
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
/* USER CODE END Header */
|
||||
/* Includes ------------------------------------------------------------------*/
|
||||
#include "i2c.h"
|
||||
|
||||
/* USER CODE BEGIN 0 */
|
||||
|
||||
/* USER CODE END 0 */
|
||||
|
||||
I2C_HandleTypeDef hi2c1;
|
||||
I2C_HandleTypeDef hi2c2;
|
||||
|
||||
/* I2C1 init function */
|
||||
void MX_I2C1_Init(void)
|
||||
{
|
||||
|
||||
/* USER CODE BEGIN I2C1_Init 0 */
|
||||
|
||||
/* USER CODE END I2C1_Init 0 */
|
||||
|
||||
/* USER CODE BEGIN I2C1_Init 1 */
|
||||
|
||||
/* USER CODE END I2C1_Init 1 */
|
||||
hi2c1.Instance = I2C1;
|
||||
hi2c1.Init.ClockSpeed = 100000;
|
||||
hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
|
||||
hi2c1.Init.OwnAddress1 = 0;
|
||||
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
|
||||
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
|
||||
hi2c1.Init.OwnAddress2 = 0;
|
||||
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
|
||||
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
|
||||
if (HAL_I2C_Init(&hi2c1) != HAL_OK)
|
||||
{
|
||||
Error_Handler();
|
||||
}
|
||||
/* USER CODE BEGIN I2C1_Init 2 */
|
||||
|
||||
/* USER CODE END I2C1_Init 2 */
|
||||
|
||||
}
|
||||
/* I2C2 init function */
|
||||
void MX_I2C2_Init(void)
|
||||
{
|
||||
|
||||
/* USER CODE BEGIN I2C2_Init 0 */
|
||||
|
||||
/* USER CODE END I2C2_Init 0 */
|
||||
|
||||
/* USER CODE BEGIN I2C2_Init 1 */
|
||||
|
||||
/* USER CODE END I2C2_Init 1 */
|
||||
hi2c2.Instance = I2C2;
|
||||
hi2c2.Init.ClockSpeed = 100000;
|
||||
hi2c2.Init.DutyCycle = I2C_DUTYCYCLE_2;
|
||||
hi2c2.Init.OwnAddress1 = 0;
|
||||
hi2c2.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
|
||||
hi2c2.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
|
||||
hi2c2.Init.OwnAddress2 = 0;
|
||||
hi2c2.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
|
||||
hi2c2.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
|
||||
if (HAL_I2C_Init(&hi2c2) != HAL_OK)
|
||||
{
|
||||
Error_Handler();
|
||||
}
|
||||
/* USER CODE BEGIN I2C2_Init 2 */
|
||||
|
||||
/* USER CODE END I2C2_Init 2 */
|
||||
|
||||
}
|
||||
|
||||
void HAL_I2C_MspInit(I2C_HandleTypeDef* i2cHandle)
|
||||
{
|
||||
|
||||
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
||||
if(i2cHandle->Instance==I2C1)
|
||||
{
|
||||
/* USER CODE BEGIN I2C1_MspInit 0 */
|
||||
|
||||
/* USER CODE END I2C1_MspInit 0 */
|
||||
|
||||
__HAL_RCC_GPIOB_CLK_ENABLE();
|
||||
/**I2C1 GPIO Configuration
|
||||
PB6 ------> I2C1_SCL
|
||||
PB7 ------> I2C1_SDA
|
||||
*/
|
||||
GPIO_InitStruct.Pin = I2C1_SCL_PH_Pin|I2C1_SDA_PH_Pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
|
||||
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
|
||||
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
|
||||
|
||||
/* I2C1 clock enable */
|
||||
__HAL_RCC_I2C1_CLK_ENABLE();
|
||||
/* USER CODE BEGIN I2C1_MspInit 1 */
|
||||
|
||||
/* USER CODE END I2C1_MspInit 1 */
|
||||
}
|
||||
else if(i2cHandle->Instance==I2C2)
|
||||
{
|
||||
/* USER CODE BEGIN I2C2_MspInit 0 */
|
||||
|
||||
/* USER CODE END I2C2_MspInit 0 */
|
||||
|
||||
__HAL_RCC_GPIOB_CLK_ENABLE();
|
||||
/**I2C2 GPIO Configuration
|
||||
PB10 ------> I2C2_SCL
|
||||
PB11 ------> I2C2_SDA
|
||||
*/
|
||||
GPIO_InitStruct.Pin = I2C2_SCL_CE_Pin|I2C2_SDA_CE_Pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
|
||||
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
|
||||
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
|
||||
|
||||
/* I2C2 clock enable */
|
||||
__HAL_RCC_I2C2_CLK_ENABLE();
|
||||
/* USER CODE BEGIN I2C2_MspInit 1 */
|
||||
|
||||
/* USER CODE END I2C2_MspInit 1 */
|
||||
}
|
||||
}
|
||||
|
||||
void HAL_I2C_MspDeInit(I2C_HandleTypeDef* i2cHandle)
|
||||
{
|
||||
|
||||
if(i2cHandle->Instance==I2C1)
|
||||
{
|
||||
/* USER CODE BEGIN I2C1_MspDeInit 0 */
|
||||
|
||||
/* USER CODE END I2C1_MspDeInit 0 */
|
||||
/* Peripheral clock disable */
|
||||
__HAL_RCC_I2C1_CLK_DISABLE();
|
||||
|
||||
/**I2C1 GPIO Configuration
|
||||
PB6 ------> I2C1_SCL
|
||||
PB7 ------> I2C1_SDA
|
||||
*/
|
||||
HAL_GPIO_DeInit(I2C1_SCL_PH_GPIO_Port, I2C1_SCL_PH_Pin);
|
||||
|
||||
HAL_GPIO_DeInit(I2C1_SDA_PH_GPIO_Port, I2C1_SDA_PH_Pin);
|
||||
|
||||
/* USER CODE BEGIN I2C1_MspDeInit 1 */
|
||||
|
||||
/* USER CODE END I2C1_MspDeInit 1 */
|
||||
}
|
||||
else if(i2cHandle->Instance==I2C2)
|
||||
{
|
||||
/* USER CODE BEGIN I2C2_MspDeInit 0 */
|
||||
|
||||
/* USER CODE END I2C2_MspDeInit 0 */
|
||||
/* Peripheral clock disable */
|
||||
__HAL_RCC_I2C2_CLK_DISABLE();
|
||||
|
||||
/**I2C2 GPIO Configuration
|
||||
PB10 ------> I2C2_SCL
|
||||
PB11 ------> I2C2_SDA
|
||||
*/
|
||||
HAL_GPIO_DeInit(I2C2_SCL_CE_GPIO_Port, I2C2_SCL_CE_Pin);
|
||||
|
||||
HAL_GPIO_DeInit(I2C2_SDA_CE_GPIO_Port, I2C2_SDA_CE_Pin);
|
||||
|
||||
/* USER CODE BEGIN I2C2_MspDeInit 1 */
|
||||
|
||||
/* USER CODE END I2C2_MspDeInit 1 */
|
||||
}
|
||||
}
|
||||
|
||||
/* USER CODE BEGIN 1 */
|
||||
|
||||
/* USER CODE END 1 */
|
||||
|
||||
@@ -0,0 +1,487 @@
|
||||
/* USER CODE BEGIN Header */
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file : main.c
|
||||
* @brief : Main program body
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* Copyright (c) 2026 STMicroelectronics.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software is licensed under terms that can be found in the LICENSE file
|
||||
* in the root directory of this software component.
|
||||
* If no LICENSE file comes with this software, it is provided AS-IS.
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
/* USER CODE END Header */
|
||||
/* Includes ------------------------------------------------------------------*/
|
||||
#include "main.h"
|
||||
#include "adc.h"
|
||||
#include "i2c.h"
|
||||
#include "usart.h"
|
||||
#include "gpio.h"
|
||||
|
||||
/* Private includes ----------------------------------------------------------*/
|
||||
/* USER CODE BEGIN Includes */
|
||||
#include "ads1015_driver.h"
|
||||
#include "digital_outputs_driver.h"
|
||||
#include "ad5934_driver.h"
|
||||
#include "rs485_driver.h"
|
||||
|
||||
#include <string.h>
|
||||
/* USER CODE END Includes */
|
||||
|
||||
/* Private typedef -----------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PTD */
|
||||
|
||||
/* USER CODE END PTD */
|
||||
|
||||
/* Private define ------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PD */
|
||||
|
||||
|
||||
/* USER CODE END PD */
|
||||
|
||||
/* Private macro -------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PM */
|
||||
|
||||
/* USER CODE END PM */
|
||||
|
||||
/* Private variables ---------------------------------------------------------*/
|
||||
|
||||
/* USER CODE BEGIN PV */
|
||||
|
||||
uint8_t rx_buffer[256]; /*!< Buffer for received data */
|
||||
uint8_t tx_data[] = "Hello RS-485 Broadcast!"; /*!< Data to send */
|
||||
|
||||
uint8_t adc_text[6];
|
||||
uint8_t real_text[6];
|
||||
uint8_t imag_text[6];
|
||||
uint8_t rs485_text[6];
|
||||
|
||||
|
||||
uint8_t newline[]={'\r','\n'};
|
||||
uint8_t doubleSpace[]={'_','_'};
|
||||
uint8_t newline_ph[]={'_','p','H','\r','\n'};
|
||||
uint8_t newline_admi[]={'_','m','S','\r','\n'};
|
||||
uint8_t newline_real[]={'_','°','C','\r','\n'};
|
||||
uint8_t newline_imag[]={'_','O','h','m','\r','\n'};
|
||||
uint8_t newline_485[]={'_','a','d','\r','\n'};
|
||||
uint8_t minus[]={'-',' '};
|
||||
|
||||
|
||||
uint8_t rs485_address=0;
|
||||
|
||||
ADS1015_I2C i2c;
|
||||
|
||||
|
||||
/* USER CODE END PV */
|
||||
|
||||
/* Private function prototypes -----------------------------------------------*/
|
||||
void SystemClock_Config(void);
|
||||
/* USER CODE BEGIN PFP */
|
||||
void intToStr(int N, char *str);
|
||||
void FloatToString(char * buf, double val);
|
||||
|
||||
/* USER CODE END PFP */
|
||||
|
||||
/* Private user code ---------------------------------------------------------*/
|
||||
/* USER CODE BEGIN 0 */
|
||||
|
||||
|
||||
/* USER CODE END 0 */
|
||||
|
||||
/**
|
||||
* @brief The application entry point.
|
||||
* @retval int
|
||||
*/
|
||||
int main(void)
|
||||
{
|
||||
|
||||
/* USER CODE BEGIN 1 */
|
||||
HAL_StatusTypeDef status0,status1;
|
||||
|
||||
|
||||
// Variables to store previous LED states
|
||||
uint8_t previous_green_state = 0;
|
||||
uint8_t previous_red_state = 0;
|
||||
|
||||
// Variables for timing
|
||||
uint32_t previous_millis_green = 0;
|
||||
uint32_t previous_millis_red = 0;
|
||||
uint32_t current_millis;
|
||||
|
||||
float temperature_RTD, admittance_EC;
|
||||
|
||||
/*! Temporary variables */
|
||||
char tempString[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
|
||||
long double tempValue = 0;
|
||||
|
||||
/* USER CODE END 1 */
|
||||
|
||||
/* MCU Configuration--------------------------------------------------------*/
|
||||
|
||||
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
|
||||
HAL_Init();
|
||||
|
||||
/* USER CODE BEGIN Init */
|
||||
|
||||
/* USER CODE END Init */
|
||||
|
||||
/* Configure the system clock */
|
||||
SystemClock_Config();
|
||||
|
||||
/* USER CODE BEGIN SysInit */
|
||||
|
||||
/* USER CODE END SysInit */
|
||||
|
||||
/* Initialize all configured peripherals */
|
||||
MX_GPIO_Init();
|
||||
MX_ADC1_Init();
|
||||
MX_ADC2_Init();
|
||||
MX_I2C1_Init();
|
||||
MX_I2C2_Init();
|
||||
MX_USART1_UART_Init();
|
||||
/* USER CODE BEGIN 2 */
|
||||
|
||||
digital_outputs_init();
|
||||
|
||||
// Initialize RS-485 driver
|
||||
rs485_init();
|
||||
|
||||
ADS1015(&i2c, &hi2c1, ADS_ADDR_GND);
|
||||
ADSsetGain(&i2c, GAIN_SIXTEEN);
|
||||
|
||||
// Start CE and RTD Measurement
|
||||
AD5934_Init();
|
||||
|
||||
|
||||
/* USER CODE END 2 */
|
||||
|
||||
/* Infinite loop */
|
||||
/* USER CODE BEGIN WHILE */
|
||||
while (1)
|
||||
{
|
||||
/* USER CODE END WHILE */
|
||||
|
||||
/* USER CODE BEGIN 3 */
|
||||
current_millis = HAL_GetTick();
|
||||
|
||||
|
||||
// Piscar LED verde em PB5 a cada 0,5 segundos
|
||||
if ((current_millis - previous_millis_green) >= 800)
|
||||
{
|
||||
previous_millis_green = current_millis;
|
||||
|
||||
/*HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_5);
|
||||
|
||||
// Check if state changed and send via RS485
|
||||
uint8_t current_green_state = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_5);
|
||||
if (current_green_state != previous_green_state)
|
||||
{
|
||||
previous_green_state = current_green_state;
|
||||
uint8_t led_data[2] = {0x01, current_green_state}; // Command 0x01 for green LED
|
||||
|
||||
}*/
|
||||
|
||||
|
||||
temperature_RTD = AD5934_GetTemperature();
|
||||
FloatToString(tempString, temperature_RTD);
|
||||
status0 = rs485_send_broadcast(tempString, (strlen((char*)tempString)-1));
|
||||
status1 = rs485_send_broadcast(newline_real, strlen((char*)newline_real));
|
||||
|
||||
|
||||
if(edge_state == FALLING_EDGE)
|
||||
{
|
||||
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_4, GPIO_PIN_SET);
|
||||
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_RESET);
|
||||
temp_calib = temperature_RTD;
|
||||
v_ph4 = ADSCalculate_ph_Volts(2048 - ADSreadADC_Differential_0_1(&i2c));
|
||||
edge_state = NO_EDGE;
|
||||
HAL_Delay(500);
|
||||
}else if(edge_state == RISING_EDGE)
|
||||
{
|
||||
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_4, GPIO_PIN_RESET);
|
||||
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_SET);
|
||||
v_ph7 = ADSCalculate_ph_Volts(2048 - ADSreadADC_Differential_0_1(&i2c));
|
||||
edge_state = NO_EDGE;
|
||||
HAL_Delay(500);
|
||||
}
|
||||
|
||||
ph_compensated = ADSCalculate_ph_Compensated((2048 - ADSreadADC_Differential_0_1(&i2c)),temp_calib);
|
||||
FloatToString(tempString, ph_compensated);
|
||||
status0 = rs485_send_broadcast(tempString, (strlen((char*)tempString)-1));
|
||||
status1 = rs485_send_broadcast(newline_ph, strlen((char*)newline_ph));
|
||||
|
||||
|
||||
admittance_EC = AD5934_GetImpedance();
|
||||
FloatToString(tempString, admittance_EC);
|
||||
status0 = rs485_send_broadcast(tempString, (strlen((char*)tempString)-1));
|
||||
status1 = rs485_send_broadcast(newline_admi, strlen((char*)newline_admi));
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
// Piscar LED vermelho em PB4 a cada 1 segundo
|
||||
/* if ((current_millis - previous_millis_red) >= 700)
|
||||
{
|
||||
previous_millis_red = current_millis;
|
||||
HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_4);
|
||||
|
||||
// Check if state changed and send via RS485
|
||||
uint8_t current_red_state = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_4);
|
||||
if (current_red_state != previous_red_state)
|
||||
{
|
||||
previous_red_state = current_red_state;
|
||||
uint8_t led_data[2] = {0x02, current_red_state}; // Command 0x02 for red LED
|
||||
|
||||
}
|
||||
|
||||
// Check if state changed and send via RS485
|
||||
rs485_address = rs485_get_address();
|
||||
|
||||
intToStr(rs485_address, rs485_text);
|
||||
|
||||
// Send broadcast message
|
||||
status0 = rs485_send_broadcast(rs485_text, strlen((char*)rs485_text));
|
||||
status1 = rs485_send_broadcast(newline_485, strlen((char*)newline_485));
|
||||
status1 = rs485_send_broadcast(newline, strlen((char*)newline));
|
||||
|
||||
|
||||
// Set channels in the Analog Switch
|
||||
|
||||
|
||||
//tempByte = ad5934_sample_BL.bytes[0];
|
||||
//ad5934_sample_BL.bytes[0] = ad5934_sample_BL.bytes[1];
|
||||
//ad5934_sample_BL.bytes[1] = tempByte;
|
||||
//tempByte = ad5934_sample_BL.bytes[2];
|
||||
//ad5934_sample_BL.bytes[2] = ad5934_sample_BL.bytes[3];
|
||||
//ad5934_sample_BL.bytes[3] = tempByte;
|
||||
//ad5934_sample_IL.number = ad5934_sample_BL.number;
|
||||
|
||||
|
||||
// ad5934_sample_IL.number = AD5934_Sweep();
|
||||
// intToStr((ad5934_sample_IL.ints[0]), real_text);
|
||||
// status0 = rs485_send_broadcast(real_text, strlen((char*)real_text));
|
||||
// status1 = rs485_send_broadcast(newline_real, strlen((char*)newline_real));
|
||||
// intToStr((ad5934_sample_IL.ints[1]), imag_text);
|
||||
//status0 = rs485_send_broadcast(imag_text, strlen((char*)imag_text));
|
||||
//status1 = rs485_send_broadcast(newline_imag, strlen((char*)newline_imag));
|
||||
|
||||
|
||||
|
||||
|
||||
//AD5934_GetImpedance(CH_EC);
|
||||
//FloatToString(tempString, ad5934_impedances_average[0]);
|
||||
//status0 = rs485_send_broadcast(tempString, strlen((char*)tempString));
|
||||
//status1 = rs485_send_broadcast(newline_imag, strlen((char*)newline_imag));
|
||||
|
||||
|
||||
//impedance_EC = AD5934_CalculateImpedance();
|
||||
//FloatToString(tempString, impedance_EC);
|
||||
//status0 = rs485_send_broadcast(tempString, strlen((char*)tempString));
|
||||
//status1 = rs485_send_broadcast(newline_imag, strlen((char*)newline_imag));
|
||||
|
||||
|
||||
|
||||
// Read ADC value
|
||||
int16_t adc_value = 2048 - ADSreadADC_Differential_0_1(&i2c);
|
||||
intToStr(adc_value, adc_text);
|
||||
|
||||
//
|
||||
status0 = rs485_send_broadcast(adc_text, strlen((char*)adc_text));
|
||||
status1 = rs485_send_broadcast(newline_ph, strlen((char*)newline_ph));
|
||||
status1 = rs485_send_broadcast(newline, strlen((char*)newline));
|
||||
|
||||
|
||||
}*/
|
||||
|
||||
|
||||
// Read ADC value
|
||||
// int16_t adc_value = 2048 - ADSreadADC_Differential_0_1(&i2c);
|
||||
// intToStr(adc_value, adc_text);
|
||||
|
||||
//
|
||||
// status0 = rs485_send_broadcast(adc_text, strlen((char*)adc_text));
|
||||
// status1 = rs485_send_broadcast(newline_ph, strlen((char*)newline_ph));
|
||||
// status1 = rs485_send_broadcast(newline, strlen((char*)newline));
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
}
|
||||
/* USER CODE END 3 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief System Clock Configuration
|
||||
* @retval None
|
||||
*/
|
||||
void SystemClock_Config(void)
|
||||
{
|
||||
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
|
||||
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
|
||||
RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
|
||||
|
||||
/** Initializes the RCC Oscillators according to the specified parameters
|
||||
* in the RCC_OscInitTypeDef structure.
|
||||
*/
|
||||
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
|
||||
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
|
||||
RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
|
||||
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
|
||||
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
|
||||
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
|
||||
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL2;
|
||||
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
|
||||
{
|
||||
Error_Handler();
|
||||
}
|
||||
|
||||
/** Initializes the CPU, AHB and APB buses clocks
|
||||
*/
|
||||
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|
||||
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
|
||||
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
|
||||
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
|
||||
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
|
||||
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
|
||||
|
||||
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
|
||||
{
|
||||
Error_Handler();
|
||||
}
|
||||
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC;
|
||||
PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV8;
|
||||
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
|
||||
{
|
||||
Error_Handler();
|
||||
}
|
||||
}
|
||||
|
||||
/* USER CODE BEGIN 4 */
|
||||
|
||||
|
||||
|
||||
|
||||
/***************************************************************************//**
|
||||
* @brief Converts a float value to a character array with 3 digits of accuracy.
|
||||
*
|
||||
* @param *buf - returns the converterd value
|
||||
* @param val - value to be converted
|
||||
*
|
||||
* @return None.
|
||||
*******************************************************************************/
|
||||
void FloatToString(char * buf, double val)
|
||||
{
|
||||
long intPart = 0;
|
||||
short fracPart = 0;
|
||||
short charPos = 0;
|
||||
char localBuf[12] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
|
||||
short i = sizeof(localBuf) - 1;
|
||||
|
||||
intPart = (long)val;
|
||||
fracPart = (short)((val - intPart) * 1000 + 0.5);
|
||||
while(i > sizeof(localBuf) - 4)
|
||||
{
|
||||
localBuf[i] = (fracPart % 10) + 0x30;
|
||||
fracPart /= 10;
|
||||
i--;
|
||||
}
|
||||
localBuf[i] = '.';
|
||||
if(intPart == 0)
|
||||
{
|
||||
i --;
|
||||
localBuf[i] = '0';
|
||||
}
|
||||
while(intPart)
|
||||
{
|
||||
i --;
|
||||
localBuf[i] =(intPart % 10) + 0x30;
|
||||
intPart /= 10;
|
||||
}
|
||||
for(charPos = i; charPos < sizeof(localBuf); charPos ++)
|
||||
{
|
||||
*buf = localBuf[charPos];
|
||||
buf ++;
|
||||
}
|
||||
*buf = 0;
|
||||
}
|
||||
|
||||
|
||||
void intToStr(int N, char *str) {
|
||||
int i = 0;
|
||||
|
||||
// Save the copy of the number for sign
|
||||
int sign = N;
|
||||
|
||||
// If the number is negative, make it positive
|
||||
if (N < 0)
|
||||
N = -N;
|
||||
|
||||
// Extract digits from the number and add them to the
|
||||
// string
|
||||
while (N > 0) {
|
||||
|
||||
// Convert integer digit to character and store
|
||||
// it in the str
|
||||
str[i++] = N % 10 + '0';
|
||||
N /= 10;
|
||||
}
|
||||
|
||||
// If the number was negative, add a minus sign to the
|
||||
// string
|
||||
if (sign < 0) {
|
||||
str[i++] = '-';
|
||||
}
|
||||
|
||||
// Null-terminate the string
|
||||
str[i] = '\0';
|
||||
|
||||
// Reverse the string to get the correct order
|
||||
for (int j = 0, k = i - 1; j < k; j++, k--) {
|
||||
char temp = str[j];
|
||||
str[j] = str[k];
|
||||
str[k] = temp;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* USER CODE END 4 */
|
||||
|
||||
/**
|
||||
* @brief This function is executed in case of error occurrence.
|
||||
* @retval None
|
||||
*/
|
||||
void Error_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN Error_Handler_Debug */
|
||||
/* User can add his own implementation to report the HAL error return state */
|
||||
__disable_irq();
|
||||
while (1)
|
||||
{
|
||||
}
|
||||
/* USER CODE END Error_Handler_Debug */
|
||||
}
|
||||
#ifdef USE_FULL_ASSERT
|
||||
/**
|
||||
* @brief Reports the name of the source file and the source line number
|
||||
* where the assert_param error has occurred.
|
||||
* @param file: pointer to the source file name
|
||||
* @param line: assert_param error line source number
|
||||
* @retval None
|
||||
*/
|
||||
void assert_failed(uint8_t *file, uint32_t line)
|
||||
{
|
||||
/* USER CODE BEGIN 6 */
|
||||
/* User can add his own implementation to report the file name and line number,
|
||||
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
|
||||
/* USER CODE END 6 */
|
||||
}
|
||||
#endif /* USE_FULL_ASSERT */
|
||||
@@ -0,0 +1,184 @@
|
||||
/**
|
||||
* @file rs485_driver.c
|
||||
* @brief Implementation file for RS-485 communication driver.
|
||||
*
|
||||
* This driver provides functions to configure and control RS-485 communication
|
||||
* using USART with RTS pin as TX enable. Each device has an 8-bit address
|
||||
* defined by 4 bits on PB12-PB15 (upper nibble) and 4 bits on PA2-PA5 (lower nibble),
|
||||
* all with pull-up resistors enabled.
|
||||
*
|
||||
* @note Based on STM32F103C8T6 microcontroller and USART configuration
|
||||
*/
|
||||
|
||||
#include "rs485_driver.h"
|
||||
|
||||
/* --- Local Variables --- */
|
||||
static rs485_address_t device_address;
|
||||
static UART_HandleTypeDef huart1; /*!< Handle for USART1 */
|
||||
|
||||
/* --- Local Function Prototypes --- */
|
||||
static void rs485_configure_gpio_address(void);
|
||||
static void rs485_configure_usart1(void);
|
||||
|
||||
/**
|
||||
* @brief Initializes the RS-485 driver.
|
||||
* @note This function configures GPIOs for address detection and USART1 for communication.
|
||||
*/
|
||||
void rs485_init(void)
|
||||
{
|
||||
/* Configure GPIOs for address detection */
|
||||
rs485_configure_gpio_address();
|
||||
|
||||
/* Configure USART1 for RS-485 communication */
|
||||
rs485_configure_usart1();
|
||||
|
||||
/* Get the current device address from GPIOs */
|
||||
device_address.full_address = rs485_get_address();
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Gets the current device address from GPIOs.
|
||||
* @return The 8-bit device address.
|
||||
*/
|
||||
uint8_t rs485_get_address(void)
|
||||
{
|
||||
return ((uint8_t) ((((LL_GPIO_ReadInputPort(GPIOB) & RS485_ADDR_MASK_HIGH)>>RS485_ADDR_BIT_SET_HIGH) | (LL_GPIO_ReadInputPort(GPIOA) & RS485_ADDR_MASK_LOW)>>RS485_ADDR_BIT_SET_LOW)));
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Sends data to a specific RS-485 address.
|
||||
* @param address Target device address.
|
||||
* @param data Pointer to the data buffer.
|
||||
* @param length Number of bytes to send.
|
||||
* @retval HAL_OK on success, otherwise error code.
|
||||
*/
|
||||
HAL_StatusTypeDef rs485_send_to_address(uint8_t address, uint8_t* data, uint16_t length)
|
||||
{
|
||||
/* Enable transmission mode */
|
||||
rs485_enable_tx();
|
||||
|
||||
/* Send the address first */
|
||||
HAL_UART_Transmit(&huart1, &address, 1, HAL_MAX_DELAY);
|
||||
|
||||
/* Send the data */
|
||||
HAL_StatusTypeDef status = HAL_UART_Transmit(&huart1, data, length, HAL_MAX_DELAY);
|
||||
|
||||
/* Disable transmission mode after sending */
|
||||
rs485_disable_tx();
|
||||
|
||||
return status;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Sends data to all devices (broadcast).
|
||||
* @param data Pointer to the data buffer.
|
||||
* @param length Number of bytes to send.
|
||||
* @retval HAL_OK on success, otherwise error code.
|
||||
*/
|
||||
HAL_StatusTypeDef rs485_send_broadcast(uint8_t* data, uint16_t length)
|
||||
{
|
||||
/* Enable transmission mode */
|
||||
rs485_enable_tx();
|
||||
|
||||
/* Send the broadcast address (0x00) first */
|
||||
uint8_t broadcast_address = 0x00;
|
||||
HAL_UART_Transmit(&huart1, &broadcast_address, 1, HAL_MAX_DELAY);
|
||||
|
||||
/* Send the data */
|
||||
HAL_StatusTypeDef status = HAL_UART_Transmit(&huart1, data, length, HAL_MAX_DELAY);
|
||||
|
||||
/* Disable transmission mode after sending */
|
||||
rs485_disable_tx();
|
||||
|
||||
return status;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Receives data from RS-485 bus.
|
||||
* @param data Pointer to the receive buffer.
|
||||
* @param length Maximum number of bytes to receive.
|
||||
* @retval Number of bytes received, or 0 on error.
|
||||
*/
|
||||
uint16_t rs485_receive(uint8_t* data, uint16_t length)
|
||||
{
|
||||
HAL_StatusTypeDef status;
|
||||
uint16_t bytes_received = 0;
|
||||
|
||||
/* Enable reception mode (transmission disabled) */
|
||||
rs485_disable_tx();
|
||||
|
||||
/* Receive data with timeout */
|
||||
status = HAL_UART_Receive(&huart1, data, length, HAL_MAX_DELAY);
|
||||
if (status == HAL_OK)
|
||||
{
|
||||
bytes_received = length;
|
||||
}
|
||||
|
||||
return bytes_received;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Enables transmission mode on RS-485 transceiver.
|
||||
*/
|
||||
void rs485_enable_tx(void)
|
||||
{
|
||||
/* Set TX EN pin high to enable transmitter */
|
||||
HAL_GPIO_WritePin(RS485_TX_EN_PORT, RS485_TX_EN_PIN, GPIO_PIN_SET);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Disables transmission mode on RS-485 transceiver.
|
||||
*/
|
||||
void rs485_disable_tx(void)
|
||||
{
|
||||
/* Set TX EN pin low to disable transmitter */
|
||||
HAL_GPIO_WritePin(RS485_TX_EN_PORT, RS485_TX_EN_PIN, GPIO_PIN_RESET);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Configures GPIOs for address detection.
|
||||
*/
|
||||
static void rs485_configure_gpio_address(void)
|
||||
{
|
||||
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
||||
|
||||
/* Enable clock for GPIOA and GPIOB */
|
||||
__HAL_RCC_GPIOA_CLK_ENABLE();
|
||||
__HAL_RCC_GPIOB_CLK_ENABLE();
|
||||
|
||||
/* Configure PA2-PA5 as input with pull-up */
|
||||
GPIO_InitStruct.Pin = GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_5;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
|
||||
GPIO_InitStruct.Pull = GPIO_PULLUP;
|
||||
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
|
||||
|
||||
/* Configure PB12-PB15 as input with pull-up */
|
||||
GPIO_InitStruct.Pin = GPIO_PIN_12 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
|
||||
GPIO_InitStruct.Pull = GPIO_PULLUP;
|
||||
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Configures USART1 for RS-485 communication.
|
||||
*/
|
||||
static void rs485_configure_usart1(void)
|
||||
{
|
||||
/* Enable clock for USART1 */
|
||||
__HAL_RCC_USART1_CLK_ENABLE();
|
||||
|
||||
huart1.Instance = USART1;
|
||||
huart1.Init.BaudRate = 9600; /*!< Default baud rate for RS-485 */
|
||||
huart1.Init.WordLength = UART_WORDLENGTH_8B;
|
||||
huart1.Init.StopBits = UART_STOPBITS_1;
|
||||
huart1.Init.Parity = UART_PARITY_NONE;
|
||||
huart1.Init.Mode = UART_MODE_TX_RX;
|
||||
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE; /*!< Use NONE as TX enable */
|
||||
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
|
||||
|
||||
if (HAL_UART_Init(&huart1) != HAL_OK)
|
||||
{
|
||||
/* Initialization Error */
|
||||
while(1);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,85 @@
|
||||
/* USER CODE BEGIN Header */
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file stm32f1xx_hal_msp.c
|
||||
* @brief This file provides code for the MSP Initialization
|
||||
* and de-Initialization codes.
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* Copyright (c) 2026 STMicroelectronics.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software is licensed under terms that can be found in the LICENSE file
|
||||
* in the root directory of this software component.
|
||||
* If no LICENSE file comes with this software, it is provided AS-IS.
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
/* USER CODE END Header */
|
||||
/* Includes ------------------------------------------------------------------*/
|
||||
#include "main.h"
|
||||
/* USER CODE BEGIN Includes */
|
||||
|
||||
/* USER CODE END Includes */
|
||||
|
||||
/* Private typedef -----------------------------------------------------------*/
|
||||
/* USER CODE BEGIN TD */
|
||||
|
||||
/* USER CODE END TD */
|
||||
|
||||
/* Private define ------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN Define */
|
||||
|
||||
/* USER CODE END Define */
|
||||
|
||||
/* Private macro -------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN Macro */
|
||||
|
||||
/* USER CODE END Macro */
|
||||
|
||||
/* Private variables ---------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PV */
|
||||
|
||||
/* USER CODE END PV */
|
||||
|
||||
/* Private function prototypes -----------------------------------------------*/
|
||||
/* USER CODE BEGIN PFP */
|
||||
|
||||
/* USER CODE END PFP */
|
||||
|
||||
/* External functions --------------------------------------------------------*/
|
||||
/* USER CODE BEGIN ExternalFunctions */
|
||||
|
||||
/* USER CODE END ExternalFunctions */
|
||||
|
||||
/* USER CODE BEGIN 0 */
|
||||
|
||||
/* USER CODE END 0 */
|
||||
/**
|
||||
* Initializes the Global MSP.
|
||||
*/
|
||||
void HAL_MspInit(void)
|
||||
{
|
||||
|
||||
/* USER CODE BEGIN MspInit 0 */
|
||||
|
||||
/* USER CODE END MspInit 0 */
|
||||
|
||||
__HAL_RCC_AFIO_CLK_ENABLE();
|
||||
__HAL_RCC_PWR_CLK_ENABLE();
|
||||
|
||||
/* System interrupt init*/
|
||||
|
||||
/** NOJTAG: JTAG-DP Disabled and SW-DP Enabled
|
||||
*/
|
||||
__HAL_AFIO_REMAP_SWJ_NOJTAG();
|
||||
|
||||
/* USER CODE BEGIN MspInit 1 */
|
||||
|
||||
/* USER CODE END MspInit 1 */
|
||||
}
|
||||
|
||||
/* USER CODE BEGIN 1 */
|
||||
|
||||
/* USER CODE END 1 */
|
||||
@@ -0,0 +1,231 @@
|
||||
/* USER CODE BEGIN Header */
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file stm32f1xx_it.c
|
||||
* @brief Interrupt Service Routines.
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* Copyright (c) 2026 STMicroelectronics.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software is licensed under terms that can be found in the LICENSE file
|
||||
* in the root directory of this software component.
|
||||
* If no LICENSE file comes with this software, it is provided AS-IS.
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
/* USER CODE END Header */
|
||||
|
||||
/* Includes ------------------------------------------------------------------*/
|
||||
#include "main.h"
|
||||
#include "stm32f1xx_it.h"
|
||||
/* Private includes ----------------------------------------------------------*/
|
||||
/* USER CODE BEGIN Includes */
|
||||
/* USER CODE END Includes */
|
||||
|
||||
/* Private typedef -----------------------------------------------------------*/
|
||||
/* USER CODE BEGIN TD */
|
||||
|
||||
/* USER CODE END TD */
|
||||
|
||||
/* Private define ------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PD */
|
||||
|
||||
/* USER CODE END PD */
|
||||
|
||||
/* Private macro -------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PM */
|
||||
|
||||
/* USER CODE END PM */
|
||||
|
||||
/* Private variables ---------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PV */
|
||||
|
||||
/* USER CODE END PV */
|
||||
|
||||
/* Private function prototypes -----------------------------------------------*/
|
||||
/* USER CODE BEGIN PFP */
|
||||
|
||||
/* USER CODE END PFP */
|
||||
|
||||
/* Private user code ---------------------------------------------------------*/
|
||||
/* USER CODE BEGIN 0 */
|
||||
|
||||
/* USER CODE END 0 */
|
||||
|
||||
/* External variables --------------------------------------------------------*/
|
||||
extern UART_HandleTypeDef huart1;
|
||||
/* USER CODE BEGIN EV */
|
||||
|
||||
/* USER CODE END EV */
|
||||
|
||||
/******************************************************************************/
|
||||
/* Cortex-M3 Processor Interruption and Exception Handlers */
|
||||
/******************************************************************************/
|
||||
/**
|
||||
* @brief This function handles Non maskable interrupt.
|
||||
*/
|
||||
void NMI_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN NonMaskableInt_IRQn 0 */
|
||||
|
||||
/* USER CODE END NonMaskableInt_IRQn 0 */
|
||||
/* USER CODE BEGIN NonMaskableInt_IRQn 1 */
|
||||
while (1)
|
||||
{
|
||||
}
|
||||
/* USER CODE END NonMaskableInt_IRQn 1 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Hard fault interrupt.
|
||||
*/
|
||||
void HardFault_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN HardFault_IRQn 0 */
|
||||
|
||||
/* USER CODE END HardFault_IRQn 0 */
|
||||
while (1)
|
||||
{
|
||||
/* USER CODE BEGIN W1_HardFault_IRQn 0 */
|
||||
/* USER CODE END W1_HardFault_IRQn 0 */
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Memory management fault.
|
||||
*/
|
||||
void MemManage_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN MemoryManagement_IRQn 0 */
|
||||
|
||||
/* USER CODE END MemoryManagement_IRQn 0 */
|
||||
while (1)
|
||||
{
|
||||
/* USER CODE BEGIN W1_MemoryManagement_IRQn 0 */
|
||||
/* USER CODE END W1_MemoryManagement_IRQn 0 */
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Prefetch fault, memory access fault.
|
||||
*/
|
||||
void BusFault_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN BusFault_IRQn 0 */
|
||||
|
||||
/* USER CODE END BusFault_IRQn 0 */
|
||||
while (1)
|
||||
{
|
||||
/* USER CODE BEGIN W1_BusFault_IRQn 0 */
|
||||
/* USER CODE END W1_BusFault_IRQn 0 */
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Undefined instruction or illegal state.
|
||||
*/
|
||||
void UsageFault_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN UsageFault_IRQn 0 */
|
||||
|
||||
/* USER CODE END UsageFault_IRQn 0 */
|
||||
while (1)
|
||||
{
|
||||
/* USER CODE BEGIN W1_UsageFault_IRQn 0 */
|
||||
/* USER CODE END W1_UsageFault_IRQn 0 */
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles System service call via SWI instruction.
|
||||
*/
|
||||
void SVC_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN SVCall_IRQn 0 */
|
||||
|
||||
/* USER CODE END SVCall_IRQn 0 */
|
||||
/* USER CODE BEGIN SVCall_IRQn 1 */
|
||||
|
||||
/* USER CODE END SVCall_IRQn 1 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Debug monitor.
|
||||
*/
|
||||
void DebugMon_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN DebugMonitor_IRQn 0 */
|
||||
|
||||
/* USER CODE END DebugMonitor_IRQn 0 */
|
||||
/* USER CODE BEGIN DebugMonitor_IRQn 1 */
|
||||
|
||||
/* USER CODE END DebugMonitor_IRQn 1 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Pendable request for system service.
|
||||
*/
|
||||
void PendSV_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN PendSV_IRQn 0 */
|
||||
|
||||
/* USER CODE END PendSV_IRQn 0 */
|
||||
/* USER CODE BEGIN PendSV_IRQn 1 */
|
||||
|
||||
/* USER CODE END PendSV_IRQn 1 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles System tick timer.
|
||||
*/
|
||||
void SysTick_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN SysTick_IRQn 0 */
|
||||
|
||||
/* USER CODE END SysTick_IRQn 0 */
|
||||
HAL_IncTick();
|
||||
/* USER CODE BEGIN SysTick_IRQn 1 */
|
||||
|
||||
/* USER CODE END SysTick_IRQn 1 */
|
||||
}
|
||||
|
||||
/******************************************************************************/
|
||||
/* STM32F1xx Peripheral Interrupt Handlers */
|
||||
/* Add here the Interrupt Handlers for the used peripherals. */
|
||||
/* For the available peripheral interrupt handler names, */
|
||||
/* please refer to the startup file (startup_stm32f1xx.s). */
|
||||
/******************************************************************************/
|
||||
|
||||
/**
|
||||
* @brief This function handles EXTI line3 interrupt.
|
||||
*/
|
||||
void EXTI3_IRQHandler(void)
|
||||
{
|
||||
/* USER CODE BEGIN EXTI3_IRQn 0 */
|
||||
|
||||
/* USER CODE END EXTI3_IRQn 0 */
|
||||
HAL_GPIO_EXTI_IRQHandler(Calib_PH_Pin);
|
||||
/* USER CODE BEGIN EXTI3_IRQn 1 */
|
||||
|
||||
/* USER CODE END EXTI3_IRQn 1 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles USART1 global interrupt.
|
||||
*/
|
||||
void USART1_IRQHandler(void)
|
||||
{
|
||||
/* USER CODE BEGIN USART1_IRQn 0 */
|
||||
|
||||
/* USER CODE END USART1_IRQn 0 */
|
||||
HAL_UART_IRQHandler(&huart1);
|
||||
/* USER CODE BEGIN USART1_IRQn 1 */
|
||||
|
||||
/* USER CODE END USART1_IRQn 1 */
|
||||
}
|
||||
|
||||
/* USER CODE BEGIN 1 */
|
||||
|
||||
/* USER CODE END 1 */
|
||||
@@ -0,0 +1,176 @@
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file syscalls.c
|
||||
* @author Auto-generated by STM32CubeIDE
|
||||
* @brief STM32CubeIDE Minimal System calls file
|
||||
*
|
||||
* For more information about which c-functions
|
||||
* need which of these lowlevel functions
|
||||
* please consult the Newlib libc-manual
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* Copyright (c) 2020-2026 STMicroelectronics.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software is licensed under terms that can be found in the LICENSE file
|
||||
* in the root directory of this software component.
|
||||
* If no LICENSE file comes with this software, it is provided AS-IS.
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
|
||||
/* Includes */
|
||||
#include <sys/stat.h>
|
||||
#include <stdlib.h>
|
||||
#include <errno.h>
|
||||
#include <stdio.h>
|
||||
#include <signal.h>
|
||||
#include <time.h>
|
||||
#include <sys/time.h>
|
||||
#include <sys/times.h>
|
||||
|
||||
|
||||
/* Variables */
|
||||
extern int __io_putchar(int ch) __attribute__((weak));
|
||||
extern int __io_getchar(void) __attribute__((weak));
|
||||
|
||||
|
||||
char *__env[1] = { 0 };
|
||||
char **environ = __env;
|
||||
|
||||
|
||||
/* Functions */
|
||||
void initialise_monitor_handles()
|
||||
{
|
||||
}
|
||||
|
||||
int _getpid(void)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
int _kill(int pid, int sig)
|
||||
{
|
||||
(void)pid;
|
||||
(void)sig;
|
||||
errno = EINVAL;
|
||||
return -1;
|
||||
}
|
||||
|
||||
void _exit (int status)
|
||||
{
|
||||
_kill(status, -1);
|
||||
while (1) {} /* Make sure we hang here */
|
||||
}
|
||||
|
||||
__attribute__((weak)) int _read(int file, char *ptr, int len)
|
||||
{
|
||||
(void)file;
|
||||
int DataIdx;
|
||||
|
||||
for (DataIdx = 0; DataIdx < len; DataIdx++)
|
||||
{
|
||||
*ptr++ = __io_getchar();
|
||||
}
|
||||
|
||||
return len;
|
||||
}
|
||||
|
||||
__attribute__((weak)) int _write(int file, char *ptr, int len)
|
||||
{
|
||||
(void)file;
|
||||
int DataIdx;
|
||||
|
||||
for (DataIdx = 0; DataIdx < len; DataIdx++)
|
||||
{
|
||||
__io_putchar(*ptr++);
|
||||
}
|
||||
return len;
|
||||
}
|
||||
|
||||
int _close(int file)
|
||||
{
|
||||
(void)file;
|
||||
return -1;
|
||||
}
|
||||
|
||||
|
||||
int _fstat(int file, struct stat *st)
|
||||
{
|
||||
(void)file;
|
||||
st->st_mode = S_IFCHR;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int _isatty(int file)
|
||||
{
|
||||
(void)file;
|
||||
return 1;
|
||||
}
|
||||
|
||||
int _lseek(int file, int ptr, int dir)
|
||||
{
|
||||
(void)file;
|
||||
(void)ptr;
|
||||
(void)dir;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int _open(char *path, int flags, ...)
|
||||
{
|
||||
(void)path;
|
||||
(void)flags;
|
||||
/* Pretend like we always fail */
|
||||
return -1;
|
||||
}
|
||||
|
||||
int _wait(int *status)
|
||||
{
|
||||
(void)status;
|
||||
errno = ECHILD;
|
||||
return -1;
|
||||
}
|
||||
|
||||
int _unlink(char *name)
|
||||
{
|
||||
(void)name;
|
||||
errno = ENOENT;
|
||||
return -1;
|
||||
}
|
||||
|
||||
int _times(struct tms *buf)
|
||||
{
|
||||
(void)buf;
|
||||
return -1;
|
||||
}
|
||||
|
||||
int _stat(char *file, struct stat *st)
|
||||
{
|
||||
(void)file;
|
||||
st->st_mode = S_IFCHR;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int _link(char *old, char *new)
|
||||
{
|
||||
(void)old;
|
||||
(void)new;
|
||||
errno = EMLINK;
|
||||
return -1;
|
||||
}
|
||||
|
||||
int _fork(void)
|
||||
{
|
||||
errno = EAGAIN;
|
||||
return -1;
|
||||
}
|
||||
|
||||
int _execve(char *name, char **argv, char **env)
|
||||
{
|
||||
(void)name;
|
||||
(void)argv;
|
||||
(void)env;
|
||||
errno = ENOMEM;
|
||||
return -1;
|
||||
}
|
||||
@@ -0,0 +1,79 @@
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file sysmem.c
|
||||
* @author Generated by STM32CubeIDE
|
||||
* @brief STM32CubeIDE System Memory calls file
|
||||
*
|
||||
* For more information about which C functions
|
||||
* need which of these lowlevel functions
|
||||
* please consult the newlib libc manual
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* Copyright (c) 2026 STMicroelectronics.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software is licensed under terms that can be found in the LICENSE file
|
||||
* in the root directory of this software component.
|
||||
* If no LICENSE file comes with this software, it is provided AS-IS.
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
|
||||
/* Includes */
|
||||
#include <errno.h>
|
||||
#include <stdint.h>
|
||||
|
||||
/**
|
||||
* Pointer to the current high watermark of the heap usage
|
||||
*/
|
||||
static uint8_t *__sbrk_heap_end = NULL;
|
||||
|
||||
/**
|
||||
* @brief _sbrk() allocates memory to the newlib heap and is used by malloc
|
||||
* and others from the C library
|
||||
*
|
||||
* @verbatim
|
||||
* ############################################################################
|
||||
* # .data # .bss # newlib heap # MSP stack #
|
||||
* # # # # Reserved by _Min_Stack_Size #
|
||||
* ############################################################################
|
||||
* ^-- RAM start ^-- _end _estack, RAM end --^
|
||||
* @endverbatim
|
||||
*
|
||||
* This implementation starts allocating at the '_end' linker symbol
|
||||
* The '_Min_Stack_Size' linker symbol reserves a memory for the MSP stack
|
||||
* The implementation considers '_estack' linker symbol to be RAM end
|
||||
* NOTE: If the MSP stack, at any point during execution, grows larger than the
|
||||
* reserved size, please increase the '_Min_Stack_Size'.
|
||||
*
|
||||
* @param incr Memory size
|
||||
* @return Pointer to allocated memory
|
||||
*/
|
||||
void *_sbrk(ptrdiff_t incr)
|
||||
{
|
||||
extern uint8_t _end; /* Symbol defined in the linker script */
|
||||
extern uint8_t _estack; /* Symbol defined in the linker script */
|
||||
extern uint32_t _Min_Stack_Size; /* Symbol defined in the linker script */
|
||||
const uint32_t stack_limit = (uint32_t)&_estack - (uint32_t)&_Min_Stack_Size;
|
||||
const uint8_t *max_heap = (uint8_t *)stack_limit;
|
||||
uint8_t *prev_heap_end;
|
||||
|
||||
/* Initialize heap end at first call */
|
||||
if (NULL == __sbrk_heap_end)
|
||||
{
|
||||
__sbrk_heap_end = &_end;
|
||||
}
|
||||
|
||||
/* Protect heap from growing into the reserved MSP stack */
|
||||
if (__sbrk_heap_end + incr > max_heap)
|
||||
{
|
||||
errno = ENOMEM;
|
||||
return (void *)-1;
|
||||
}
|
||||
|
||||
prev_heap_end = __sbrk_heap_end;
|
||||
__sbrk_heap_end += incr;
|
||||
|
||||
return (void *)prev_heap_end;
|
||||
}
|
||||
@@ -0,0 +1,406 @@
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file system_stm32f1xx.c
|
||||
* @author MCD Application Team
|
||||
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
|
||||
*
|
||||
* 1. This file provides two functions and one global variable to be called from
|
||||
* user application:
|
||||
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
|
||||
* factors, AHB/APBx prescalers and Flash settings).
|
||||
* This function is called at startup just after reset and
|
||||
* before branch to main program. This call is made inside
|
||||
* the "startup_stm32f1xx_xx.s" file.
|
||||
*
|
||||
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
|
||||
* by the user application to setup the SysTick
|
||||
* timer or configure other parameters.
|
||||
*
|
||||
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
|
||||
* be called whenever the core clock is changed
|
||||
* during program execution.
|
||||
*
|
||||
* 2. After each device reset the HSI (8 MHz) is used as system clock source.
|
||||
* Then SystemInit() function is called, in "startup_stm32f1xx_xx.s" file, to
|
||||
* configure the system clock before to branch to main program.
|
||||
*
|
||||
* 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depending on
|
||||
* the product used), refer to "HSE_VALUE".
|
||||
* When HSE is used as system clock source, directly or through PLL, and you
|
||||
* are using different crystal you have to adapt the HSE value to your own
|
||||
* configuration.
|
||||
*
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* Copyright (c) 2017-2021 STMicroelectronics.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software is licensed under terms that can be found in the LICENSE file
|
||||
* in the root directory of this software component.
|
||||
* If no LICENSE file comes with this software, it is provided AS-IS.
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
|
||||
/** @addtogroup CMSIS
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @addtogroup stm32f1xx_system
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F1xx_System_Private_Includes
|
||||
* @{
|
||||
*/
|
||||
|
||||
#include "stm32f1xx.h"
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F1xx_System_Private_TypesDefinitions
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F1xx_System_Private_Defines
|
||||
* @{
|
||||
*/
|
||||
|
||||
#if !defined (HSE_VALUE)
|
||||
#define HSE_VALUE 8000000U /*!< Default value of the External oscillator in Hz.
|
||||
This value can be provided and adapted by the user application. */
|
||||
#endif /* HSE_VALUE */
|
||||
|
||||
#if !defined (HSI_VALUE)
|
||||
#define HSI_VALUE 8000000U /*!< Default value of the Internal oscillator in Hz.
|
||||
This value can be provided and adapted by the user application. */
|
||||
#endif /* HSI_VALUE */
|
||||
|
||||
/*!< Uncomment the following line if you need to use external SRAM */
|
||||
#if defined(STM32F100xE) || defined(STM32F101xE) || defined(STM32F101xG) || defined(STM32F103xE) || defined(STM32F103xG)
|
||||
/* #define DATA_IN_ExtSRAM */
|
||||
#endif /* STM32F100xE || STM32F101xE || STM32F101xG || STM32F103xE || STM32F103xG */
|
||||
|
||||
/* Note: Following vector table addresses must be defined in line with linker
|
||||
configuration. */
|
||||
/*!< Uncomment the following line if you need to relocate the vector table
|
||||
anywhere in Flash or Sram, else the vector table is kept at the automatic
|
||||
remap of boot address selected */
|
||||
/* #define USER_VECT_TAB_ADDRESS */
|
||||
|
||||
#if defined(USER_VECT_TAB_ADDRESS)
|
||||
/*!< Uncomment the following line if you need to relocate your vector Table
|
||||
in Sram else user remap will be done in Flash. */
|
||||
/* #define VECT_TAB_SRAM */
|
||||
#if defined(VECT_TAB_SRAM)
|
||||
#define VECT_TAB_BASE_ADDRESS SRAM_BASE /*!< Vector Table base address field.
|
||||
This value must be a multiple of 0x200. */
|
||||
#define VECT_TAB_OFFSET 0x00000000U /*!< Vector Table base offset field.
|
||||
This value must be a multiple of 0x200. */
|
||||
#else
|
||||
#define VECT_TAB_BASE_ADDRESS FLASH_BASE /*!< Vector Table base address field.
|
||||
This value must be a multiple of 0x200. */
|
||||
#define VECT_TAB_OFFSET 0x00000000U /*!< Vector Table base offset field.
|
||||
This value must be a multiple of 0x200. */
|
||||
#endif /* VECT_TAB_SRAM */
|
||||
#endif /* USER_VECT_TAB_ADDRESS */
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F1xx_System_Private_Macros
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F1xx_System_Private_Variables
|
||||
* @{
|
||||
*/
|
||||
|
||||
/* This variable is updated in three ways:
|
||||
1) by calling CMSIS function SystemCoreClockUpdate()
|
||||
2) by calling HAL API function HAL_RCC_GetHCLKFreq()
|
||||
3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
|
||||
Note: If you use this function to configure the system clock; then there
|
||||
is no need to call the 2 first functions listed above, since SystemCoreClock
|
||||
variable is updated automatically.
|
||||
*/
|
||||
uint32_t SystemCoreClock = 8000000;
|
||||
const uint8_t AHBPrescTable[16U] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
|
||||
const uint8_t APBPrescTable[8U] = {0, 0, 0, 0, 1, 2, 3, 4};
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F1xx_System_Private_FunctionPrototypes
|
||||
* @{
|
||||
*/
|
||||
|
||||
#if defined(STM32F100xE) || defined(STM32F101xE) || defined(STM32F101xG) || defined(STM32F103xE) || defined(STM32F103xG)
|
||||
#ifdef DATA_IN_ExtSRAM
|
||||
static void SystemInit_ExtMemCtl(void);
|
||||
#endif /* DATA_IN_ExtSRAM */
|
||||
#endif /* STM32F100xE || STM32F101xE || STM32F101xG || STM32F103xE || STM32F103xG */
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F1xx_System_Private_Functions
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @brief Setup the microcontroller system
|
||||
* Initialize the Embedded Flash Interface, the PLL and update the
|
||||
* SystemCoreClock variable.
|
||||
* @note This function should be used only after reset.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void SystemInit (void)
|
||||
{
|
||||
#if defined(STM32F100xE) || defined(STM32F101xE) || defined(STM32F101xG) || defined(STM32F103xE) || defined(STM32F103xG)
|
||||
#ifdef DATA_IN_ExtSRAM
|
||||
SystemInit_ExtMemCtl();
|
||||
#endif /* DATA_IN_ExtSRAM */
|
||||
#endif
|
||||
|
||||
/* Configure the Vector Table location -------------------------------------*/
|
||||
#if defined(USER_VECT_TAB_ADDRESS)
|
||||
SCB->VTOR = VECT_TAB_BASE_ADDRESS | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */
|
||||
#endif /* USER_VECT_TAB_ADDRESS */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Update SystemCoreClock variable according to Clock Register Values.
|
||||
* The SystemCoreClock variable contains the core clock (HCLK), it can
|
||||
* be used by the user application to setup the SysTick timer or configure
|
||||
* other parameters.
|
||||
*
|
||||
* @note Each time the core clock (HCLK) changes, this function must be called
|
||||
* to update SystemCoreClock variable value. Otherwise, any configuration
|
||||
* based on this variable will be incorrect.
|
||||
*
|
||||
* @note - The system frequency computed by this function is not the real
|
||||
* frequency in the chip. It is calculated based on the predefined
|
||||
* constant and the selected clock source:
|
||||
*
|
||||
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
|
||||
*
|
||||
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
|
||||
*
|
||||
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
|
||||
* or HSI_VALUE(*) multiplied by the PLL factors.
|
||||
*
|
||||
* (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value
|
||||
* 8 MHz) but the real value may vary depending on the variations
|
||||
* in voltage and temperature.
|
||||
*
|
||||
* (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value
|
||||
* 8 MHz or 25 MHz, depending on the product used), user has to ensure
|
||||
* that HSE_VALUE is same as the real frequency of the crystal used.
|
||||
* Otherwise, this function may have wrong result.
|
||||
*
|
||||
* - The result of this function could be not correct when using fractional
|
||||
* value for HSE crystal.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void SystemCoreClockUpdate (void)
|
||||
{
|
||||
uint32_t tmp = 0U, pllmull = 0U, pllsource = 0U;
|
||||
|
||||
#if defined(STM32F105xC) || defined(STM32F107xC)
|
||||
uint32_t prediv1source = 0U, prediv1factor = 0U, prediv2factor = 0U, pll2mull = 0U;
|
||||
#endif /* STM32F105xC */
|
||||
|
||||
#if defined(STM32F100xB) || defined(STM32F100xE)
|
||||
uint32_t prediv1factor = 0U;
|
||||
#endif /* STM32F100xB or STM32F100xE */
|
||||
|
||||
/* Get SYSCLK source -------------------------------------------------------*/
|
||||
tmp = RCC->CFGR & RCC_CFGR_SWS;
|
||||
|
||||
switch (tmp)
|
||||
{
|
||||
case 0x00U: /* HSI used as system clock */
|
||||
SystemCoreClock = HSI_VALUE;
|
||||
break;
|
||||
case 0x04U: /* HSE used as system clock */
|
||||
SystemCoreClock = HSE_VALUE;
|
||||
break;
|
||||
case 0x08U: /* PLL used as system clock */
|
||||
|
||||
/* Get PLL clock source and multiplication factor ----------------------*/
|
||||
pllmull = RCC->CFGR & RCC_CFGR_PLLMULL;
|
||||
pllsource = RCC->CFGR & RCC_CFGR_PLLSRC;
|
||||
|
||||
#if !defined(STM32F105xC) && !defined(STM32F107xC)
|
||||
pllmull = ( pllmull >> 18U) + 2U;
|
||||
|
||||
if (pllsource == 0x00U)
|
||||
{
|
||||
/* HSI oscillator clock divided by 2 selected as PLL clock entry */
|
||||
SystemCoreClock = (HSI_VALUE >> 1U) * pllmull;
|
||||
}
|
||||
else
|
||||
{
|
||||
#if defined(STM32F100xB) || defined(STM32F100xE)
|
||||
prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1U;
|
||||
/* HSE oscillator clock selected as PREDIV1 clock entry */
|
||||
SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull;
|
||||
#else
|
||||
/* HSE selected as PLL clock entry */
|
||||
if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET)
|
||||
{/* HSE oscillator clock divided by 2 */
|
||||
SystemCoreClock = (HSE_VALUE >> 1U) * pllmull;
|
||||
}
|
||||
else
|
||||
{
|
||||
SystemCoreClock = HSE_VALUE * pllmull;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
#else
|
||||
pllmull = pllmull >> 18U;
|
||||
|
||||
if (pllmull != 0x0DU)
|
||||
{
|
||||
pllmull += 2U;
|
||||
}
|
||||
else
|
||||
{ /* PLL multiplication factor = PLL input clock * 6.5 */
|
||||
pllmull = 13U / 2U;
|
||||
}
|
||||
|
||||
if (pllsource == 0x00U)
|
||||
{
|
||||
/* HSI oscillator clock divided by 2 selected as PLL clock entry */
|
||||
SystemCoreClock = (HSI_VALUE >> 1U) * pllmull;
|
||||
}
|
||||
else
|
||||
{/* PREDIV1 selected as PLL clock entry */
|
||||
|
||||
/* Get PREDIV1 clock source and division factor */
|
||||
prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC;
|
||||
prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1U;
|
||||
|
||||
if (prediv1source == 0U)
|
||||
{
|
||||
/* HSE oscillator clock selected as PREDIV1 clock entry */
|
||||
SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull;
|
||||
}
|
||||
else
|
||||
{/* PLL2 clock selected as PREDIV1 clock entry */
|
||||
|
||||
/* Get PREDIV2 division factor and PLL2 multiplication factor */
|
||||
prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4U) + 1U;
|
||||
pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8U) + 2U;
|
||||
SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull;
|
||||
}
|
||||
}
|
||||
#endif /* STM32F105xC */
|
||||
break;
|
||||
|
||||
default:
|
||||
SystemCoreClock = HSI_VALUE;
|
||||
break;
|
||||
}
|
||||
|
||||
/* Compute HCLK clock frequency ----------------*/
|
||||
/* Get HCLK prescaler */
|
||||
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4U)];
|
||||
/* HCLK clock frequency */
|
||||
SystemCoreClock >>= tmp;
|
||||
}
|
||||
|
||||
#if defined(STM32F100xE) || defined(STM32F101xE) || defined(STM32F101xG) || defined(STM32F103xE) || defined(STM32F103xG)
|
||||
/**
|
||||
* @brief Setup the external memory controller. Called in startup_stm32f1xx.s
|
||||
* before jump to __main
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
#ifdef DATA_IN_ExtSRAM
|
||||
/**
|
||||
* @brief Setup the external memory controller.
|
||||
* Called in startup_stm32f1xx_xx.s/.c before jump to main.
|
||||
* This function configures the external SRAM mounted on STM3210E-EVAL
|
||||
* board (STM32 High density devices). This SRAM will be used as program
|
||||
* data memory (including heap and stack).
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void SystemInit_ExtMemCtl(void)
|
||||
{
|
||||
__IO uint32_t tmpreg;
|
||||
/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is
|
||||
required, then adjust the Register Addresses */
|
||||
|
||||
/* Enable FSMC clock */
|
||||
RCC->AHBENR = 0x00000114U;
|
||||
|
||||
/* Delay after an RCC peripheral clock enabling */
|
||||
tmpreg = READ_BIT(RCC->AHBENR, RCC_AHBENR_FSMCEN);
|
||||
|
||||
/* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */
|
||||
RCC->APB2ENR = 0x000001E0U;
|
||||
|
||||
/* Delay after an RCC peripheral clock enabling */
|
||||
tmpreg = READ_BIT(RCC->APB2ENR, RCC_APB2ENR_IOPDEN);
|
||||
|
||||
(void)(tmpreg);
|
||||
|
||||
/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/
|
||||
/*---------------- SRAM Address lines configuration -------------------------*/
|
||||
/*---------------- NOE and NWE configuration --------------------------------*/
|
||||
/*---------------- NE3 configuration ----------------------------------------*/
|
||||
/*---------------- NBL0, NBL1 configuration ---------------------------------*/
|
||||
|
||||
GPIOD->CRL = 0x44BB44BBU;
|
||||
GPIOD->CRH = 0xBBBBBBBBU;
|
||||
|
||||
GPIOE->CRL = 0xB44444BBU;
|
||||
GPIOE->CRH = 0xBBBBBBBBU;
|
||||
|
||||
GPIOF->CRL = 0x44BBBBBBU;
|
||||
GPIOF->CRH = 0xBBBB4444U;
|
||||
|
||||
GPIOG->CRL = 0x44BBBBBBU;
|
||||
GPIOG->CRH = 0x444B4B44U;
|
||||
|
||||
/*---------------- FSMC Configuration ---------------------------------------*/
|
||||
/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/
|
||||
|
||||
FSMC_Bank1->BTCR[4U] = 0x00001091U;
|
||||
FSMC_Bank1->BTCR[5U] = 0x00110212U;
|
||||
}
|
||||
#endif /* DATA_IN_ExtSRAM */
|
||||
#endif /* STM32F100xE || STM32F101xE || STM32F101xG || STM32F103xE || STM32F103xG */
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
@@ -0,0 +1,123 @@
|
||||
/* USER CODE BEGIN Header */
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file usart.c
|
||||
* @brief This file provides code for the configuration
|
||||
* of the USART instances.
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* Copyright (c) 2026 STMicroelectronics.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software is licensed under terms that can be found in the LICENSE file
|
||||
* in the root directory of this software component.
|
||||
* If no LICENSE file comes with this software, it is provided AS-IS.
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
/* USER CODE END Header */
|
||||
/* Includes ------------------------------------------------------------------*/
|
||||
#include "usart.h"
|
||||
|
||||
/* USER CODE BEGIN 0 */
|
||||
|
||||
/* USER CODE END 0 */
|
||||
|
||||
UART_HandleTypeDef huart1;
|
||||
|
||||
/* USART1 init function */
|
||||
|
||||
void MX_USART1_UART_Init(void)
|
||||
{
|
||||
|
||||
/* USER CODE BEGIN USART1_Init 0 */
|
||||
|
||||
/* USER CODE END USART1_Init 0 */
|
||||
|
||||
/* USER CODE BEGIN USART1_Init 1 */
|
||||
|
||||
/* USER CODE END USART1_Init 1 */
|
||||
huart1.Instance = USART1;
|
||||
huart1.Init.BaudRate = 115200;
|
||||
huart1.Init.WordLength = UART_WORDLENGTH_8B;
|
||||
huart1.Init.StopBits = UART_STOPBITS_1;
|
||||
huart1.Init.Parity = UART_PARITY_NONE;
|
||||
huart1.Init.Mode = UART_MODE_TX_RX;
|
||||
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
|
||||
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
|
||||
if (HAL_UART_Init(&huart1) != HAL_OK)
|
||||
{
|
||||
Error_Handler();
|
||||
}
|
||||
/* USER CODE BEGIN USART1_Init 2 */
|
||||
|
||||
/* USER CODE END USART1_Init 2 */
|
||||
|
||||
}
|
||||
|
||||
void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
|
||||
{
|
||||
|
||||
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
||||
if(uartHandle->Instance==USART1)
|
||||
{
|
||||
/* USER CODE BEGIN USART1_MspInit 0 */
|
||||
|
||||
/* USER CODE END USART1_MspInit 0 */
|
||||
/* USART1 clock enable */
|
||||
__HAL_RCC_USART1_CLK_ENABLE();
|
||||
|
||||
__HAL_RCC_GPIOA_CLK_ENABLE();
|
||||
/**USART1 GPIO Configuration
|
||||
PA9 ------> USART1_TX
|
||||
PA10 ------> USART1_RX
|
||||
*/
|
||||
GPIO_InitStruct.Pin = TX_RS485_Pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
|
||||
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_MEDIUM;
|
||||
HAL_GPIO_Init(TX_RS485_GPIO_Port, &GPIO_InitStruct);
|
||||
|
||||
GPIO_InitStruct.Pin = RX_RS485_Pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
|
||||
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
||||
HAL_GPIO_Init(RX_RS485_GPIO_Port, &GPIO_InitStruct);
|
||||
|
||||
/* USART1 interrupt Init */
|
||||
HAL_NVIC_SetPriority(USART1_IRQn, 0, 0);
|
||||
HAL_NVIC_EnableIRQ(USART1_IRQn);
|
||||
/* USER CODE BEGIN USART1_MspInit 1 */
|
||||
|
||||
/* USER CODE END USART1_MspInit 1 */
|
||||
}
|
||||
}
|
||||
|
||||
void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
|
||||
{
|
||||
|
||||
if(uartHandle->Instance==USART1)
|
||||
{
|
||||
/* USER CODE BEGIN USART1_MspDeInit 0 */
|
||||
|
||||
/* USER CODE END USART1_MspDeInit 0 */
|
||||
/* Peripheral clock disable */
|
||||
__HAL_RCC_USART1_CLK_DISABLE();
|
||||
|
||||
/**USART1 GPIO Configuration
|
||||
PA9 ------> USART1_TX
|
||||
PA10 ------> USART1_RX
|
||||
*/
|
||||
HAL_GPIO_DeInit(GPIOA, TX_RS485_Pin|RX_RS485_Pin);
|
||||
|
||||
/* USART1 interrupt Deinit */
|
||||
HAL_NVIC_DisableIRQ(USART1_IRQn);
|
||||
/* USER CODE BEGIN USART1_MspDeInit 1 */
|
||||
|
||||
/* USER CODE END USART1_MspDeInit 1 */
|
||||
}
|
||||
}
|
||||
|
||||
/* USER CODE BEGIN 1 */
|
||||
|
||||
/* USER CODE END 1 */
|
||||
|
||||
Reference in New Issue
Block a user