[STM32] Nucleo-F303RE + CAN

[Daku]

Witam,

 

Mam dość spory problem z Nucleo-F303RE.

Can'y mam na SPI standardowe pod arduino, jaki i takie do użycia na płytce testowej ( TJA1040 ).

Na Nucleo korzystam z pinów PB8, PB9 dla cant TX RX.

Ustawienia CAN

System Clock MUX -> HSI 8Mhz

Prescaler - 8
TQBS1 - 8
TQBS2 - 1
  
System Clock MUX -> PLLCLK 72Mhz -> APB1 36MHz

Prescaler - 20
TQBS1 - 15
TQBS2 - 2

Kod programu, ramka 0x321 ma wyjść 

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

/* 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 ---------------------------------------------------------*/
CAN_HandleTypeDef hcan;

UART_HandleTypeDef huart2;

/* USER CODE BEGIN PV */
CAN_FilterTypeDef	sFilterConfig;
CAN_TxHeaderTypeDef	TxHeader;
CAN_RxHeaderTypeDef	RxHeader;
uint8_t TxData[8];
uint8_t RxData[8];
uint32_t TxMailbox;

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CAN_Init(void);
static void MX_USART2_UART_Init(void);
/* USER CODE BEGIN PFP */

/* 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 */

  /* 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_CAN_Init();
  MX_USART2_UART_Init();
  /* USER CODE BEGIN 2 */

  sFilterConfig.FilterBank=0;
  sFilterConfig.FilterMode=CAN_FILTERMODE_IDMASK;
  sFilterConfig.FilterScale=CAN_FILTERSCALE_32BIT;
  sFilterConfig.FilterIdHigh=0x0000;
  sFilterConfig.FilterIdLow=0x0000;
  sFilterConfig.FilterMaskIdHigh=0x0000;
  sFilterConfig.FilterMaskIdLow=0x0000;
  sFilterConfig.FilterFIFOAssignment=CAN_RX_FIFO0;
  sFilterConfig.FilterActivation=DISABLE;//ENABLE;
  sFilterConfig.SlaveStartFilterBank=14;
  if(HAL_CAN_ConfigFilter(&hcan,&sFilterConfig)!=HAL_OK)
  {
	  /* Filter configuration Error */
	  Error_Handler();
  }

  if(HAL_CAN_Start(&hcan)!=HAL_OK)
  {
	  /* Start Error */
	  Error_Handler();
  }

  if(HAL_CAN_ActivateNotification(&hcan,CAN_IT_RX_FIFO0_MSG_PENDING |CAN_IT_TX_MAILBOX_EMPTY)!=HAL_OK)
  {
	  /* Notification Error */
	  Error_Handler();
  }

  TxHeader.StdId=0x321;
  TxHeader.ExtId=0x01;
  TxHeader.RTR=CAN_RTR_DATA;
  TxHeader.IDE=CAN_ID_STD;
  TxHeader.DLC=8;
  TxHeader.TransmitGlobalTime=DISABLE;
  TxData[0]=1;
  TxData[1]=2;
  TxData[2]=3;
  TxData[3]=4;
  TxData[4]=5;
  TxData[5]=6;
  TxData[6]=7;
  TxData[7]=8;
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
	  HAL_CAN_AddTxMessage(&hcan,&TxHeader,TxData,&TxMailbox);
	  HAL_Delay(500);
	  TxData[7]=TxData[7]+1;
	  HAL_GPIO_TogglePin(LD2_GPIO_Port,LD2_Pin);

	  // tst
	  RxHeader;


  }
  /* 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_HSI;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
  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_HSI;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
  {
    Error_Handler();
  }
  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART2;
  PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
  {
    Error_Handler();
  }
}

/**
  * @brief CAN Initialization Function
  * @param None
  * @retval None
  */
static void MX_CAN_Init(void)
{

  /* USER CODE BEGIN CAN_Init 0 */

  /* USER CODE END CAN_Init 0 */

  /* USER CODE BEGIN CAN_Init 1 */

  /* USER CODE END CAN_Init 1 */
  hcan.Instance = CAN;
  hcan.Init.Prescaler = 8;
  hcan.Init.Mode = CAN_MODE_NORMAL;
  hcan.Init.SyncJumpWidth = CAN_SJW_1TQ;
  hcan.Init.TimeSeg1 = CAN_BS1_8TQ;
  hcan.Init.TimeSeg2 = CAN_BS2_1TQ;
  hcan.Init.TimeTriggeredMode = DISABLE;
  hcan.Init.AutoBusOff = DISABLE;
  hcan.Init.AutoWakeUp = DISABLE;
  hcan.Init.AutoRetransmission = DISABLE;
  hcan.Init.ReceiveFifoLocked = DISABLE;
  hcan.Init.TransmitFifoPriority = DISABLE;
  if (HAL_CAN_Init(&hcan) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN CAN_Init 2 */

  /* USER CODE END CAN_Init 2 */

}

/**
  * @brief USART2 Initialization Function
  * @param None
  * @retval None
  */
static void MX_USART2_UART_Init(void)
{

  /* USER CODE BEGIN USART2_Init 0 */

  /* USER CODE END USART2_Init 0 */

  /* USER CODE BEGIN USART2_Init 1 */

  /* USER CODE END USART2_Init 1 */
  huart2.Instance = USART2;
  huart2.Init.BaudRate = 38400;
  huart2.Init.WordLength = UART_WORDLENGTH_8B;
  huart2.Init.StopBits = UART_STOPBITS_1;
  huart2.Init.Parity = UART_PARITY_NONE;
  huart2.Init.Mode = UART_MODE_TX_RX;
  huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart2.Init.OverSampling = UART_OVERSAMPLING_16;
  huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
  huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  if (HAL_UART_Init(&huart2) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN USART2_Init 2 */

  /* USER CODE END USART2_Init 2 */

}

/**
  * @brief GPIO Initialization Function
  * @param None
  * @retval None
  */
static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOF_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_RESET);

  /*Configure GPIO pin : B1_Pin */
  GPIO_InitStruct.Pin = B1_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct);

  /*Configure GPIO pin : LD2_Pin */
  GPIO_InitStruct.Pin = LD2_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(LD2_GPIO_Port, &GPIO_InitStruct);

}

/* USER CODE BEGIN 4 */
void HAL_CAN_TxMailbox0CompleteCallback(CAN_HandleTypeDef*hcan)
{
	HAL_GPIO_TogglePin(LD2_GPIO_Port,LD2_Pin);
}
void HAL_CAN_RxFifo0MsgPendingCallback(CAN_HandleTypeDef*hcan)
{
	HAL_CAN_GetRxMessage(&hcan,CAN_RX_FIFO0,&RxHeader,RxData);
	HAL_GPIO_TogglePin(LD2_GPIO_Port,LD2_Pin);
}
/* 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 */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

 

Na upartego dałem nawet 2 takie same płytki NUCLEO, podłączyłem między nimi TX RX, jednak nic się nie pojawia.

[Anonim]

Myślę,że kluczowe do rozwiązania problemu jest przeczytanie najpierw pliku UM1718  STM32CubeMX for STM32 configuration
and initialization C code generation a później odpowiednich rozdziałów UM1725 Description of STM32F4 HAL and low-layer drivers.Obecnie jestem na etapie czytania  UM1718 i coraz bardziej  ogania mnie pusty śmiech.Dlaczego?Dowiesz się czytając.Poprawisz kod i wszystko będzie ok.Jeśli nie przeczytasz UM 1718 będziesz błądzić aż się zniechęcisz i najprawdopodobniej przejdziesz do Arduino,które nie oferuje tyle co STM32Cube.A STM32Cube to naprawdę dobrze napisany łańcuch narzędzi ,który jest ciągle rozwijany.W pliku UM1718 wszystko jest ważne bo jest kluczowy do dalszego działania!To co czytam to już wersja 33.

[Daku]

Problem tkwił w samym TJA1040.

Zastosowałem TJA1050, problem został rozwiązany.