169 lines
5.6 KiB
C
169 lines
5.6 KiB
C
/* 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
|
|
Calib_PH_Pin */
|
|
GPIO_InitStruct.Pin = RS485_Addr4_Pin|RS485_Addr5_Pin|RS485_Addr6_Pin|RS485_Addr7_Pin
|
|
|Calib_PH_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);
|
|
|
|
}
|
|
|
|
/* 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)
|
|
{
|
|
/* External Interrupt
|
|
if ((GPIO_Pin == Calib_PH_Pin) && (main_state == STATE_RUNNING_OK))
|
|
{
|
|
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 */
|