I currently work on Project CAN communication using stm32f103c8t6 , I have already bought TJA1050 as CAN transceiver but when I try to send CAN message ,the register CAN transmit status register (CAN_TSR) at bit TERR0 is set , that mean transmit failed right ?
When debugging, I checked the CAN Error status register ,the TEC counter is full and the Last Error Code is Bit dominant Error
Did I config wrong or TJA1050 wasn't compatible cause I saw some tutorial CAN stm32 , they use MCP2551 instead of TJA1050 ... Main code func below :
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();
HAL_CAN_Start(&hcan);
/* USER CODE BEGIN 2 */
TxHeader.IDE = CAN_ID_STD;
TxHeader.StdId = 0x446;
TxHeader.RTR = CAN_RTR_DATA;
TxHeader.DLC = 2;
TxData[0] = 0x50;
TxData[1] = 0xAA;
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
/* USER CODE END WHILE */
if(HAL_CAN_AddTxMessage(&hcan, &TxHeader, TxData, &TxMailbox) != HAL_OK)
{
Error_Handler();
}
HAL_Delay(3000);
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
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 = CAN1;
hcan.Init.Prescaler = 4;
hcan.Init.Mode = CAN_MODE_NORMAL;
hcan.Init.SyncJumpWidth = CAN_SJW_1TQ;
hcan.Init.TimeSeg1 = CAN_BS1_15TQ;
hcan.Init.TimeSeg2 = CAN_BS2_2TQ;
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 */
}
Hope someone can help me :)