409 lines
12 KiB
C
409 lines
12 KiB
C
/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file : main.c
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* @brief : Main program body
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2025 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* USER CODE END Header */
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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/* Private includes ----------------------------------------------------------*/
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/* USER CODE BEGIN Includes */
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#include <stdbool.h>
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#define TRUE 1
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#define FALSE 0
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/* USER CODE END Includes */
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/* Private typedef -----------------------------------------------------------*/
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/* USER CODE BEGIN PTD */
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bool RL_mode = FALSE;
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bool LR_mode = FALSE;
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bool AMBERFLASH_mode = FALSE;
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bool REDLEDFLASH_mode = FALSE;
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/* USER CODE END PTD */
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/* Private define ------------------------------------------------------------*/
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/* USER CODE BEGIN PD */
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/* USER CODE END PD */
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/* Private macro -------------------------------------------------------------*/
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/* USER CODE BEGIN PM */
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/* USER CODE END PM */
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/* Private variables ---------------------------------------------------------*/
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/* USER CODE BEGIN PV */
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/* USER CODE END PV */
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/* Private function prototypes -----------------------------------------------*/
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void SystemClock_Config(void);
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static void MX_GPIO_Init(void);
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/* USER CODE BEGIN PFP */
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/* USER CODE END PFP */
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/* Private user code ---------------------------------------------------------*/
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/* USER CODE BEGIN 0 */
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/* USER CODE END 0 */
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/**
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* @brief The application entry point.
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* @retval int
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*/
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int main(void)
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{
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/* USER CODE BEGIN 1 */
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/* USER CODE END 1 */
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/* MCU Configuration--------------------------------------------------------*/
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/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
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HAL_Init();
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/* USER CODE BEGIN Init */
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/* USER CODE END Init */
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/* Configure the system clock */
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SystemClock_Config();
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/* USER CODE BEGIN SysInit */
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/* USER CODE END SysInit */
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/* Initialize all configured peripherals */
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MX_GPIO_Init();
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/* USER CODE BEGIN 2 */
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HAL_GPIO_WritePin(GPIOA, Red_Flash_IN_Pin, GPIO_PIN_RESET); // red in pin is GPIO A it was written B , changed the pins in the main.h 0 to 1
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HAL_GPIO_WritePin(GPIOA, Amber_Flash_IN_Pin, GPIO_PIN_RESET);
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HAL_GPIO_WritePin(GPIOA, L_R_Mode_IN_Pin, GPIO_PIN_RESET);
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HAL_GPIO_WritePin(GPIOA, R_L_Mode_IN_Pin, GPIO_PIN_RESET);
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uint8_t slave_present = HAL_GPIO_ReadPin(GPIOA, Slave_Detect_Pin);
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if(slave_present == TRUE)
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{
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HAL_GPIO_WritePin(Last_Node_Switch_GPIO_Port, Last_Node_Switch_Pin, GPIO_PIN_RESET);
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}
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else
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{
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HAL_GPIO_WritePin(Last_Node_Switch_GPIO_Port, Last_Node_Switch_Pin, GPIO_PIN_SET);
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}
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/* USER CODE END 2 */
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/* Infinite loop */
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/* USER CODE BEGIN WHILE */
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while (1)
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{
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/* USER CODE END WHILE */
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// blinking time for a car indicator is 500 to 1200 milliseconds
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/* USER CODE BEGIN 3 */
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if(AMBERFLASH_mode)
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{
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HAL_GPIO_WritePin(GPIOB, Red_LED_Drive_Pin, GPIO_PIN_RESET);
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HAL_GPIO_TogglePin (GPIOA, Amber_LED_Drive_Pin);
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HAL_Delay (500);
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}
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else if(REDLEDFLASH_mode)
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{
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HAL_GPIO_WritePin(GPIOA, Amber_LED_Drive_Pin, GPIO_PIN_RESET);
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HAL_GPIO_TogglePin (GPIOB, Red_LED_Drive_Pin);
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HAL_Delay (500);
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}
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else if(LR_mode)
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{
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HAL_GPIO_WritePin(GPIOB, Red_LED_Drive_Pin, GPIO_PIN_RESET);
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HAL_GPIO_TogglePin (GPIOA, Amber_LED_Drive_Pin);
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HAL_Delay (500);
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HAL_GPIO_TogglePin (GPIOA, Amber_LED_Drive_Pin);
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if(slave_present)
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{
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HAL_GPIO_WritePin(GPIOA, L_R_Mode_OUT_Pin, GPIO_PIN_SET);
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HAL_Delay (200);
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HAL_GPIO_WritePin(GPIOA, L_R_Mode_OUT_Pin, GPIO_PIN_RESET);
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}
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else
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{
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/*Configure GPIO pin : Last_Node_Signal_Pin */
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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GPIO_InitStruct.Pin = Last_Node_Signal_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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HAL_GPIO_Init(Last_Node_Switch_GPIO_Port, &GPIO_InitStruct);
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HAL_GPIO_WritePin(GPIOA, Last_Node_Signal_Pin, GPIO_PIN_SET);
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HAL_Delay (200);
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HAL_GPIO_WritePin(GPIOA, Last_Node_Signal_Pin, GPIO_PIN_RESET);
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/*Configure GPIO pin : Last_Node_Signal_Pin */
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GPIO_InitStruct.Pin = Last_Node_Signal_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(Last_Node_Signal_GPIO_Port, &GPIO_InitStruct);
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}
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}
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else if(RL_mode)
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{
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HAL_GPIO_WritePin(GPIOB, Red_LED_Drive_Pin, GPIO_PIN_RESET);
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HAL_GPIO_TogglePin (GPIOA, Amber_LED_Drive_Pin);
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HAL_Delay (500);
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HAL_GPIO_WritePin(GPIOA, R_L_Mode_OUT_Pin, GPIO_PIN_SET);
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HAL_GPIO_TogglePin (GPIOA, Amber_LED_Drive_Pin);
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HAL_Delay (500);
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HAL_GPIO_WritePin(GPIOA, R_L_Mode_OUT_Pin, GPIO_PIN_SET);
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}
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else
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{
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HAL_GPIO_WritePin(GPIOB, Red_LED_Drive_Pin, GPIO_PIN_RESET);
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HAL_GPIO_WritePin(GPIOA, Amber_LED_Drive_Pin, GPIO_PIN_RESET);
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}
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}
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/* USER CODE END 3 */
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}
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/**
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* @brief System Clock Configuration
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* @retval None
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*/
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void SystemClock_Config(void)
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{
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RCC_OscInitTypeDef RCC_OscInitStruct = {0};
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RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
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__HAL_FLASH_SET_LATENCY(FLASH_LATENCY_0);
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/** Initializes the RCC Oscillators according to the specified parameters
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* in the RCC_OscInitTypeDef structure.
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*/
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
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RCC_OscInitStruct.HSIState = RCC_HSI_ON;
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RCC_OscInitStruct.HSIDiv = RCC_HSI_DIV4;
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RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
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if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
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{
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Error_Handler();
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}
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/** Initializes the CPU, AHB and APB buses clocks
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*/
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
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|RCC_CLOCKTYPE_PCLK1;
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
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RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV1;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
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{
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Error_Handler();
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}
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}
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/**
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* @brief GPIO Initialization Function
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* @param None
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* @retval None
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*/
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static void MX_GPIO_Init(void)
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{
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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/* USER CODE BEGIN MX_GPIO_Init_1 */
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/* USER CODE END MX_GPIO_Init_1 */
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/* GPIO Ports Clock Enable */
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__HAL_RCC_GPIOB_CLK_ENABLE();
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__HAL_RCC_GPIOC_CLK_ENABLE();
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__HAL_RCC_GPIOF_CLK_ENABLE();
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__HAL_RCC_GPIOA_CLK_ENABLE();
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/*Configure GPIO pin Output Level */
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HAL_GPIO_WritePin(Last_Node_Switch_GPIO_Port, Last_Node_Switch_Pin, GPIO_PIN_RESET);
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/*Configure GPIO pin Output Level */
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HAL_GPIO_WritePin(GPIOA, R_L_Mode_OUT_Pin|L_R_Mode_OUT_Pin|Amber_LED_Drive_Pin, GPIO_PIN_RESET);
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/*Configure GPIO pin Output Level */
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HAL_GPIO_WritePin(Red_LED_Drive_GPIO_Port, Red_LED_Drive_Pin, GPIO_PIN_RESET);
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/*Configure GPIO pin : Last_Node_Signal_Pin */
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GPIO_InitStruct.Pin = Last_Node_Signal_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(Last_Node_Signal_GPIO_Port, &GPIO_InitStruct);
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/*Configure GPIO pin : Last_Node_Switch_Pin */
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GPIO_InitStruct.Pin = Last_Node_Switch_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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HAL_GPIO_Init(Last_Node_Switch_GPIO_Port, &GPIO_InitStruct);
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/*Configure GPIO pin : PC15 */
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GPIO_InitStruct.Pin = GPIO_PIN_15;
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GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
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/*Configure GPIO pin : PF2 */
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GPIO_InitStruct.Pin = GPIO_PIN_2;
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GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
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/*Configure GPIO pins : Amber_Flash_IN_Pin Red_Flash_IN_Pin */
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GPIO_InitStruct.Pin = Amber_Flash_IN_Pin|Red_Flash_IN_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
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GPIO_InitStruct.Pull = GPIO_PULLDOWN;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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/*Configure GPIO pins : L_R_Mode_IN_Pin R_L_Mode_IN_Pin */
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GPIO_InitStruct.Pin = L_R_Mode_IN_Pin|R_L_Mode_IN_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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/*Configure GPIO pins : R_L_Mode_OUT_Pin L_R_Mode_OUT_Pin Amber_LED_Drive_Pin */
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GPIO_InitStruct.Pin = R_L_Mode_OUT_Pin|L_R_Mode_OUT_Pin|Amber_LED_Drive_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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/*Configure GPIO pins : PA6 PA7 PA11 */
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GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_11;
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GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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/*Configure GPIO pin : Slave_Detect_Pin */
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GPIO_InitStruct.Pin = Slave_Detect_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(Slave_Detect_GPIO_Port, &GPIO_InitStruct);
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/*Configure GPIO pin : Red_LED_Drive_Pin */
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GPIO_InitStruct.Pin = Red_LED_Drive_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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HAL_GPIO_Init(Red_LED_Drive_GPIO_Port, &GPIO_InitStruct);
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/* EXTI interrupt init*/
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HAL_NVIC_SetPriority(EXTI0_1_IRQn, 0, 0);
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HAL_NVIC_EnableIRQ(EXTI0_1_IRQn);
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HAL_NVIC_SetPriority(EXTI2_3_IRQn, 0, 0);
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HAL_NVIC_EnableIRQ(EXTI2_3_IRQn);
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/* USER CODE BEGIN MX_GPIO_Init_2 */
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/* USER CODE END MX_GPIO_Init_2 */
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}
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/* USER CODE BEGIN 4 */
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void HAL_GPIO_EXTI_Rising_Callback(uint16_t GPIO_Pin) {
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if (GPIO_Pin == Red_Flash_IN_Pin ) {
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// Rising edge detected
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// Handle the rising edge
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RL_mode = FALSE;
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LR_mode = FALSE;
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AMBERFLASH_mode = FALSE;
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REDLEDFLASH_mode = TRUE;
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} else if (GPIO_Pin == Amber_Flash_IN_Pin ) {
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// Rising edge detected
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// Handle the rising edge
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RL_mode = FALSE;
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LR_mode = FALSE;
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REDLEDFLASH_mode = FALSE;
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AMBERFLASH_mode = TRUE;
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} else if (GPIO_Pin == L_R_Mode_IN_Pin) {
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// Rising edge detected
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// Handle the rising edge
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RL_mode = FALSE;
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AMBERFLASH_mode = FALSE;
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REDLEDFLASH_mode = FALSE;
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LR_mode = TRUE;
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} else if ((GPIO_Pin == R_L_Mode_IN_Pin) || (GPIO_Pin == Last_Node_Signal_Pin) ) {
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// Rising edge detected
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// Handle the rising edge
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AMBERFLASH_mode = FALSE;
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REDLEDFLASH_mode = FALSE;
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LR_mode = FALSE;
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RL_mode = TRUE;
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}
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}
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void HAL_GPIO_EXTI_Falling_Callback(uint16_t GPIO_Pin) {
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if (GPIO_Pin == Red_Flash_IN_Pin ) {
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// Rising edge detected
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// Handle the rising edge
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RL_mode = FALSE;
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LR_mode = FALSE;
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AMBERFLASH_mode = FALSE;
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REDLEDFLASH_mode = FALSE;
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} else if (GPIO_Pin == Amber_Flash_IN_Pin ) {
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// Falling edge detected
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// Handle the falling edge
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RL_mode = FALSE;
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LR_mode = FALSE;
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REDLEDFLASH_mode = FALSE;
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AMBERFLASH_mode = FALSE;
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}
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}
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/* USER CODE END 4 */
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/**
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* @brief This function is executed in case of error occurrence.
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* @retval None
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*/
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void Error_Handler(void)
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{
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/* USER CODE BEGIN Error_Handler_Debug */
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/* User can add his own implementation to report the HAL error return state */
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__disable_irq();
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while (1)
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{
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}
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/* USER CODE END Error_Handler_Debug */
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(uint8_t *file, uint32_t line)
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{
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/* USER CODE BEGIN 6 */
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/* User can add his own implementation to report the file name and line number,
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ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* USER CODE END 6 */
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}
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#endif /* USE_FULL_ASSERT */
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