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Firmware

snehadakhare01
Associate II

Hii everyone!

We are working on CAN , and MCU is stm32f103

When we are taking output on blue-pill Tx and Rx pin Data is coming

But when are are doing same on custom board data is not showing ,we are uploading same firmware and clock configuration is also same

For testing ,In custom board when we are Toggling Tx and Rx pin of CAN that is PA12 and PA11 with same speed pluses are showing ,we check code and there is also no error.

Can you tell me what is the issue ,why data is not receiving on Tx and Rx pin of custom board??

2 REPLIES 2

Present schematic of custom board.

Present code.

Dupe. https://community.st.com/t5/stm32-mcus-boards-and-hardware/firmware/m-p/643718#M17375

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snehadakhare01
Associate II

 

code inside while loop

HAL_CAN_AddTxMessage(&hcan, &TxHeader, TxData, &TxMailbox);
HAL_Delay(500);

 

Code before while loop

 

/* USER CODE BEGIN 2 */
  HAL_CAN_Start(&hcan);
    HAL_CAN_ActivateNotification(&hcan, CAN_IT_RX_FIFO0_MSG_PENDING);
    TxHeader.DLC=8;
    TxHeader.ExtId=0;
    TxHeader.IDE=CAN_ID_STD;
    TxHeader.RTR=CAN_RTR_DATA;
    TxHeader.StdId=0x103;
    TxHeader.TransmitGlobalTime=DISABLE;
    TxData[0]=0x01;
    TxData[1]=0x02;
    TxData[2]=0x03;
  /* USER CODE END 2 */