hardware/fertirrega_v6
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Initial commit of Fertirrega v6

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hardware
2026-07-16 12:04:22 +01:00
commit 08709213d9
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Fertirrega_v6/Core/Src/gpio.c
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/* 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 */