WKUIE bit in IER

[Ash1]

Hi all I want to know About WKUIE bit in IER STM32F407 disc board.

I have configured filters for Fifo so do I have to enable WKUIE bit in IER register because even I have not enable it still I am able to receive data as RXinterrupt in rxfifopendingmessage . so can you explain me is it okay to let it disable or enable .

PFA code 

void CAN1_RX0IRQHandler(void)

{

HAL_CAN_IRQHandler(&hcan1);

}

/* Receive FIFO 0 message pending interrupt management *********************/

if ((interrupts & CAN_IT_RX_FIFO0_MSG_PENDING) != 0U)

{

/* Check if message is still pending */

if ((hcan->Instance->RF0R & CAN_RF0R_FMP0) != 0U)

{

/* Receive FIFO 0 message pending Callback */

#if USE_HAL_CAN_REGISTER_CALLBACKS == 1

/* Call registered callback*/

hcan->RxFifo0MsgPendingCallback(hcan);

#else

/* Call weak (surcharged) callback */

HAL_CAN_RxFifo0MsgPendingCallback(hcan);

#endif /* USE_HAL_CAN_REGISTER_CALLBACKS */

}

}

[SofLit · Accepted solution]

Hello,

Not sure what the issue is, but why you don't inspire from any examples provided in CubeF4 package. 

Example: https://github.com/STMicroelectronics/STM32CubeF4/tree/master/Projects/STM324xG_EVAL/Examples/CAN/CAN_Networking 

PS: in next time please use </> button to post your code: https://community.st.com/t5/community-guidelines/how-to-insert-source-code/ta-p/693413

I've edited you post then.

Thank you