Solved
FDCAN - DUAL ID FILTER
In this code I want IDs 0x100 and 0x200 should only be accepted but in my code all IDs are accepted. How to resolve this?
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 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"
/* 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 ---------------------------------------------------------*/
FDCAN_HandleTypeDef hfdcan1;
FDCAN_HandleTypeDef hfdcan2;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_FDCAN1_Init(void);
static void MX_FDCAN2_Init(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
FDCAN_TxHeaderTypeDef TX_Header1;
FDCAN_TxHeaderTypeDef TX_Header2;
FDCAN_RxHeaderTypeDef RX_Header;
char RX_data[9];
char RX_data_1[9];
char RX_data_2[9];
char TX_data_1[8] = "Hellooo";
char TX_data_2[8] = "Akshai";
char TX_data_3[8] = "Muthu08";
// uint8_t FDCAN_Mode_Init(FDCAN_HandleTypeDef *hfdcan,FDCAN_HandleTypeDef *hfdcan_1)
uint8_t FDCAN_Mode_Init(FDCAN_HandleTypeDef *hfdcan)
{
FDCAN_FilterTypeDef sConfigFilter_1;
sConfigFilter_1.IdType = FDCAN_STANDARD_ID;
sConfigFilter_1.FilterType = FDCAN_FILTER_DUAL;
sConfigFilter_1.FilterID1 = 0x100;
sConfigFilter_1.FilterID2 = 0x200;
sConfigFilter_1.FilterIndex = 0;
sConfigFilter_1.FilterConfig = FDCAN_FILTER_TO_RXFIFO0;
if(HAL_FDCAN_ConfigFilter(hfdcan, &sConfigFilter_1) != HAL_OK)
return 1;
// FDCAN_GlobalTypeDef GlobalFilter;
HAL_FDCAN_Start(hfdcan);
// HAL_FDCAN_Start(hfdcan_1);
}
uint8_t FDCAN_Send_Message(FDCAN_HandleTypeDef *hfdcan, uint8_t* data)
{
TX_Header1.Identifier = 0x100;
TX_Header1.BitRateSwitch = FDCAN_BRS_OFF;
TX_Header1.DataLength = FDCAN_DLC_BYTES_8;
TX_Header1.ErrorStateIndicator = FDCAN_ESI_ACTIVE;
TX_Header1.FDFormat = FDCAN_FD_CAN;
TX_Header1.IdType = FDCAN_STANDARD_ID;
TX_Header1.TxEventFifoControl = FDCAN_NO_TX_EVENTS;
TX_Header1.TxFrameType = FDCAN_DATA_FRAME;
TX_Header1.MessageMarker = 0;
if(HAL_FDCAN_AddMessageToTxFifoQ(hfdcan, &TX_Header1, data) != HAL_OK)return 1;
return 0;
}
uint8_t FDCAN_Send_Message_1(FDCAN_HandleTypeDef *hfdcan, uint8_t* data)
{
TX_Header2.Identifier = 0x200;
TX_Header2.BitRateSwitch = FDCAN_BRS_OFF;
TX_Header2.DataLength = FDCAN_DLC_BYTES_8;
TX_Header2.ErrorStateIndicator = FDCAN_ESI_ACTIVE;
TX_Header2.FDFormat = FDCAN_FD_CAN;
TX_Header2.IdType = FDCAN_STANDARD_ID;
TX_Header2.TxEventFifoControl = FDCAN_NO_TX_EVENTS;
TX_Header2.TxFrameType = FDCAN_DATA_FRAME;
TX_Header2.MessageMarker = 0;
if(HAL_FDCAN_AddMessageToTxFifoQ(hfdcan, &TX_Header2, data) != HAL_OK) return 1;
return 0;
}
uint8_t FDCAN_Send_Message_2(FDCAN_HandleTypeDef *hfdcan, uint8_t* data)
{
TX_Header2.Identifier = 0x300;
TX_Header2.BitRateSwitch = FDCAN_BRS_OFF;
TX_Header2.DataLength = FDCAN_DLC_BYTES_8;
TX_Header2.ErrorStateIndicator = FDCAN_ESI_ACTIVE;
TX_Header2.FDFormat = FDCAN_FD_CAN;
TX_Header2.IdType = FDCAN_STANDARD_ID;
TX_Header2.TxEventFifoControl = FDCAN_NO_TX_EVENTS;
TX_Header2.TxFrameType = FDCAN_DATA_FRAME;
TX_Header2.MessageMarker = 0;
if(HAL_FDCAN_AddMessageToTxFifoQ(hfdcan, &TX_Header2, data) != HAL_OK) return 1;
return 0;
}
uint8_t FDCAN_Receive_Message(FDCAN_HandleTypeDef *hfdcan, uint8_t *data )
{
if(HAL_FDCAN_GetRxMessage(hfdcan, FDCAN_RX_FIFO0, &RX_Header, data) != HAL_OK)
{
return 1;
}
return 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_FDCAN1_Init();
MX_FDCAN2_Init();
/* USER CODE BEGIN 2 */
if(FDCAN_Mode_Init(&hfdcan2) != 0){
while(1);
}
if(FDCAN_Mode_Init(&hfdcan1) != 0){
while(1);
}
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
if(FDCAN_Send_Message_2(&hfdcan1,TX_data_1) != 0 )
{
while(1);
}
HAL_Delay(1);
if(FDCAN_Receive_Message(&hfdcan2, RX_data) != 0)
{
while(1);
}
HAL_Delay(1000);
if(FDCAN_Send_Message_2(&hfdcan1, TX_data_3) != 0 )
{
while(1)
{
}
}
HAL_Delay(1);
if(FDCAN_Receive_Message(&hfdcan2, RX_data_2) != 0)
{
while(1)
{
}
}
HAL_Delay(1000);
if(FDCAN_Send_Message_2(&hfdcan1, TX_data_2) != 0 )
{
while(1)
{
}
}
HAL_Delay(1);
if(FDCAN_Receive_Message(&hfdcan2, RX_data_1) != 0)
{
while(1)
{
}
}
HAL_Delay(1000);
//
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Supply configuration update enable
*/
HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);
/** Configure the main internal regulator output voltage
*/
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE2);
while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}
/** 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_DIV1;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 60;
RCC_OscInitStruct.PLL.PLLP = 4;
RCC_OscInitStruct.PLL.PLLQ = 16;
RCC_OscInitStruct.PLL.PLLR = 2;
RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_3;
RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;
RCC_OscInitStruct.PLL.PLLFRACN = 0;
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_CLOCKTYPE_D3PCLK1|RCC_CLOCKTYPE_D1PCLK1;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV1;
RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief FDCAN1 Initialization Function
* None
* @retval None
*/
static void MX_FDCAN1_Init(void)
{
/* USER CODE BEGIN FDCAN1_Init 0 */
/* USER CODE END FDCAN1_Init 0 */
/* USER CODE BEGIN FDCAN1_Init 1 */
/* USER CODE END FDCAN1_Init 1 */
hfdcan1.Instance = FDCAN1;
hfdcan1.Init.FrameFormat = FDCAN_FRAME_FD_NO_BRS;
hfdcan1.Init.Mode = FDCAN_MODE_NORMAL;
hfdcan1.Init.AutoRetransmission = DISABLE;
hfdcan1.Init.TransmitPause = DISABLE;
hfdcan1.Init.ProtocolException = DISABLE;
hfdcan1.Init.NominalPrescaler = 10;
hfdcan1.Init.NominalSyncJumpWidth = 1;
hfdcan1.Init.NominalTimeSeg1 = 2;
hfdcan1.Init.NominalTimeSeg2 = 2;
hfdcan1.Init.DataPrescaler = 1;
hfdcan1.Init.DataSyncJumpWidth = 1;
hfdcan1.Init.DataTimeSeg1 = 1;
hfdcan1.Init.DataTimeSeg2 = 1;
hfdcan1.Init.MessageRAMOffset = 0;
hfdcan1.Init.StdFiltersNbr = 0;
hfdcan1.Init.ExtFiltersNbr = 0;
hfdcan1.Init.RxFifo0ElmtsNbr = 1;
hfdcan1.Init.RxFifo0ElmtSize = FDCAN_DATA_BYTES_8;
hfdcan1.Init.RxFifo1ElmtsNbr = 0;
hfdcan1.Init.RxFifo1ElmtSize = FDCAN_DATA_BYTES_8;
hfdcan1.Init.RxBuffersNbr = 0;
hfdcan1.Init.RxBufferSize = FDCAN_DATA_BYTES_8;
hfdcan1.Init.TxEventsNbr = 0;
hfdcan1.Init.TxBuffersNbr = 0;
hfdcan1.Init.TxFifoQueueElmtsNbr = 1;
hfdcan1.Init.TxFifoQueueMode = FDCAN_TX_FIFO_OPERATION;
hfdcan1.Init.TxElmtSize = FDCAN_DATA_BYTES_8;
if (HAL_FDCAN_Init(&hfdcan1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN FDCAN1_Init 2 */
/* USER CODE END FDCAN1_Init 2 */
}
/**
* @brief FDCAN2 Initialization Function
* None
* @retval None
*/
static void MX_FDCAN2_Init(void)
{
/* USER CODE BEGIN FDCAN2_Init 0 */
/* USER CODE END FDCAN2_Init 0 */
/* USER CODE BEGIN FDCAN2_Init 1 */
/* USER CODE END FDCAN2_Init 1 */
hfdcan2.Instance = FDCAN2;
hfdcan2.Init.FrameFormat = FDCAN_FRAME_FD_NO_BRS;
hfdcan2.Init.Mode = FDCAN_MODE_NORMAL;
hfdcan2.Init.AutoRetransmission = DISABLE;
hfdcan2.Init.TransmitPause = DISABLE;
hfdcan2.Init.ProtocolException = DISABLE;
hfdcan2.Init.NominalPrescaler = 10;
hfdcan2.Init.NominalSyncJumpWidth = 1;
hfdcan2.Init.NominalTimeSeg1 = 2;
hfdcan2.Init.NominalTimeSeg2 = 2;
hfdcan2.Init.DataPrescaler = 1;
hfdcan2.Init.DataSyncJumpWidth = 1;
hfdcan2.Init.DataTimeSeg1 = 1;
hfdcan2.Init.DataTimeSeg2 = 1;
hfdcan2.Init.MessageRAMOffset = 0;
hfdcan2.Init.StdFiltersNbr = 2;
hfdcan2.Init.ExtFiltersNbr = 0;
hfdcan2.Init.RxFifo0ElmtsNbr = 1;
hfdcan2.Init.RxFifo0ElmtSize = FDCAN_DATA_BYTES_8;
hfdcan2.Init.RxFifo1ElmtsNbr = 1;
hfdcan2.Init.RxFifo1ElmtSize = FDCAN_DATA_BYTES_8;
hfdcan2.Init.RxBuffersNbr = 0;
hfdcan2.Init.RxBufferSize = FDCAN_DATA_BYTES_8;
hfdcan2.Init.TxEventsNbr = 0;
hfdcan2.Init.TxBuffersNbr = 0;
hfdcan2.Init.TxFifoQueueElmtsNbr = 1;
hfdcan2.Init.TxFifoQueueMode = FDCAN_TX_FIFO_OPERATION;
hfdcan2.Init.TxElmtSize = FDCAN_DATA_BYTES_8;
if (HAL_FDCAN_Init(&hfdcan2) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN FDCAN2_Init 2 */
/* USER CODE END FDCAN2_Init 2 */
}
/**
* @brief GPIO Initialization Function
* None
* @retval None
*/
static void MX_GPIO_Init(void)
{
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/* 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.
* file: pointer to the source file name
* 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 */