2023-01-22 05:05 AM
Hi
I am new at stm32 and build my can bus code i can receive and loop std id message between can1 and can 2 without problems. But when i send extended ID FIFO didn't receive them so didn't loop to another can
setup stm32f105
transreceiver actual TJA1055
while (1)
{
/* USER CODE END WHILE */
if(HAL_CAN_GetRxFifoFillLevel(&hcan1,CAN_RX_FIFO0)>0)
{
HAL_CAN_GetRxMessage(&hcan1, CAN_RX_FIFO0, &receiver1, receivermssgcan1);
txtransmittercan2.StdId= receiver1.StdId;
txtransmittercan2.ExtId= receiver1.ExtId;
txtransmittercan2.IDE= receiver1.IDE;
txtransmittercan2.RTR= receiver1.RTR;
txtransmittercan2.DLC= receiver1.DLC;
HAL_CAN_AddTxMessage(&hcan2,&txtransmittercan2, receivermssgcan1, &txmailboxcan2);
}
/* Schleife für can 2 Durchgang */
if (HAL_CAN_GetRxFifoFillLevel(&hcan2,CAN_RX_FIFO1)>0)
{ HAL_CAN_GetRxMessage(&hcan2, CAN_RX_FIFO1, &receiver2, receivermssgcan2);
txtransmittercan1.RTR= receiver2.RTR;
txtransmittercan1.DLC= receiver2.DLC;
txtransmittercan1.StdId= receiver2.StdId;
txtransmittercan1.ExtId= receiver2.ExtId;
txtransmittercan1.IDE= receiver2.IDE;
HAL_CAN_AddTxMessage(&hcan1,&txtransmittercan1, receivermssgcan2, &txmailboxcan1);
}
/* USER CODE BEGIN 3 */
}
/* 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_LSI|RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.LSIState = RCC_LSI_ON;
RCC_OscInitStruct.Prediv1Source = RCC_PREDIV1_SOURCE_HSE;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
RCC_OscInitStruct.PLL2.PLL2State = 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_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_RTC;
PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
{
Error_Handler();
}
/** Configure the Systick interrupt time
*/
__HAL_RCC_PLLI2S_ENABLE();
}
/**
* @brief CAN1 Initialization Function
* @param None
* @retval None
*/
static void MX_CAN1_Init(void)
{
/* USER CODE BEGIN CAN1_Init 0 */
/* USER CODE END CAN1_Init 0 */
/* USER CODE BEGIN CAN1_Init 1 */
/* USER CODE END CAN1_Init 1 */
hcan1.Instance = CAN1;
hcan1.Init.Prescaler = 18;
hcan1.Init.Mode = CAN_MODE_NORMAL;
hcan1.Init.SyncJumpWidth = CAN_SJW_1TQ;
hcan1.Init.TimeSeg1 = CAN_BS1_2TQ;
hcan1.Init.TimeSeg2 = CAN_BS2_1TQ;
hcan1.Init.TimeTriggeredMode = DISABLE;
hcan1.Init.AutoBusOff = DISABLE;
hcan1.Init.AutoWakeUp = DISABLE;
hcan1.Init.AutoRetransmission = DISABLE;
hcan1.Init.ReceiveFifoLocked = DISABLE;
hcan1.Init.TransmitFifoPriority = DISABLE;
if (HAL_CAN_Init(&hcan1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CAN1_Init 2 */
CAN_FilterTypeDef Canfilteraufbau;
Canfilteraufbau.FilterActivation= CAN_FILTER_ENABLE;
Canfilteraufbau.FilterBank= 13;
Canfilteraufbau.FilterFIFOAssignment= CAN_FilterFIFO0;
Canfilteraufbau.FilterIdHigh= 0;
Canfilteraufbau.FilterIdLow= 0;
Canfilteraufbau.FilterMaskIdHigh = 0x0000;
Canfilteraufbau.FilterIdLow= 0x0000;
Canfilteraufbau.FilterMode=CAN_FILTERMODE_IDMASK;
Canfilteraufbau.FilterScale= CAN_FILTERSCALE_32BIT;
Canfilteraufbau.SlaveStartFilterBank=0;
HAL_CAN_ConfigFilter(&hcan1, &Canfilteraufbau);
/* USER CODE END CAN1_Init 2 */
}
/**
* @brief CAN2 Initialization Function
* @param None
* @retval None
*/
static void MX_CAN2_Init(void)
{
/* USER CODE BEGIN CAN2_Init 0 */
/* USER CODE END CAN2_Init 0 */
/* USER CODE BEGIN CAN2_Init 1 */
/* USER CODE END CAN2_Init 1 */
hcan2.Instance = CAN2;
hcan2.Init.Prescaler = 18;
hcan2.Init.Mode = CAN_MODE_NORMAL;
hcan2.Init.SyncJumpWidth = CAN_SJW_1TQ;
hcan2.Init.TimeSeg1 = CAN_BS1_2TQ;
hcan2.Init.TimeSeg2 = CAN_BS2_1TQ;
hcan2.Init.TimeTriggeredMode = DISABLE;
hcan2.Init.AutoBusOff = DISABLE;
hcan2.Init.AutoWakeUp = DISABLE;
hcan2.Init.AutoRetransmission = DISABLE;
hcan2.Init.ReceiveFifoLocked = DISABLE;
hcan2.Init.TransmitFifoPriority = DISABLE;
if (HAL_CAN_Init(&hcan2) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CAN2_Init 2 */
CAN_FilterTypeDef Canfilteraufbau2;
Canfilteraufbau2.FilterActivation= CAN_FILTER_ENABLE;
Canfilteraufbau2.FilterBank= 27;
Canfilteraufbau2.FilterFIFOAssignment= CAN_FilterFIFO1;
Canfilteraufbau2.FilterIdHigh= 0;
Canfilteraufbau2.FilterIdLow= 0;
Canfilteraufbau2.FilterMaskIdHigh = 0;
Canfilteraufbau2.FilterIdLow= 0;
Canfilteraufbau2.FilterMode=CAN_FILTERMODE_IDMASK;
Canfilteraufbau2.FilterScale= CAN_FILTERSCALE_32BIT;
Canfilteraufbau2.SlaveStartFilterBank=14;
HAL_CAN_ConfigFilter(&hcan2, &Canfilteraufbau2);
/* USER CODE END CAN2_Init 2 */
2023-01-23 06:50 AM
Hello @Görkem Kayur ,
There could be some possible reasons:
You may check the configuration of transmission process, the type of identifier for the message that will be transmitted should be something like this : TxHeader.IDE = CAN_ID_EXT;
Hope this helps!
To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
2023-01-23 01:00 PM
i show live data while debugging it didn't receive any Message no IDE no EXT or anything when i send extended Message
FIFO level is all the time on 0
i Tryed some other CAN transmitter
i Tryed 3 Other Devices to send message (Probably possible sending device have problems)
but its still same
Standard message have no Problems
i will show the example to check if i forget anything.