Drop into Error_Handler with HAL_CAN_ERROR_PARAM if CAN send data by HAL_CAN_AddTxMessage

[Jiannong Zhou]

I am using STM32F302RBT6 for CAN communication baud rate 10K. the firmware works on lab system. If download the firmware at field, the system dropped into Error_Handler when CAN sends data.

APB1 clock = 8MHz, Pre-scaler = 50, Seg1 = 13, Seg 2 = 2

 hcan.Instance = CAN;

 hcan.Init.Prescaler = 50;

 hcan.Init.Mode = CAN_MODE_NORMAL;

 hcan.Init.SyncJumpWidth = CAN_SJW_1TQ;

 hcan.Init.TimeSeg1 = CAN_BS1_13TQ;

 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;

Using (HAL_CAN_AddTxMessage(&hcan, &TxHeader, TxData, &TxMailbox) to send data out.

what is the reason to cause this issue - HAL_CAN_ERROR_PARAM ? which parameters are wrong?

Thanks & Regards,

Jiannong