FDCAN configuration on STM32U575

[CSou.1]

I need to use FDCAN to send CAN messages. Since I want to receive each message (without filters) I do this :

sFilterConfig.IdType = FDCAN_STANDARD_ID;
sFilterConfig.FilterIndex = 0;
sFilterConfig.FilterType = FDCAN_FILTER_DUAL;
sFilterConfig.FilterConfig = FDCAN_FILTER_DISABLE;
sFilterConfig.FilterID1 = 0;
sFilterConfig.FilterID2 = 0;
 
if (HAL_FDCAN_ConfigFilter(&hfdcan1, &sFilterConfig) != HAL_OK)
{
     return CO_ERROR_HAL;
}
else
{
    // nothing to do
}
 
if (HAL_FDCAN_ConfigGlobalFilter(&hfdcan1, FDCAN_ACCEPT_IN_RX_FIFO0, FDCAN_ACCEPT_IN_RX_FIFO0, FDCAN_FILTER_REMOTE, FDCAN_FILTER_REMOTE) != HAL_OK)
{
     return CO_ERROR_HAL;
}
else
{
    // nothing to do
}

Next, I want to activate callback for every new messages, so I do this:

HAL_FDCAN_ActivateNotification(&hfdcan1, FDCAN_IT_RX_FIFO0_NEW_MESSAGE |FDCAN_IT_RX_FIFO1_NEW_MESSAGE,  0)

But when there is a new message neither HAL_FDCAN_RxFifo0Callback nor HAL_FDCAN_RxFifo1Callback is called.

So my answer is: how can I activate callback ?

EDIT : It works, my mistake was elsewhere

[Imen.D]

Hello @CSou.1​ and welcome to the Community 🙂

Please share your solution here, so that more Community members can benefit from this post.

Thanks

Imen

[CSou.1 · Accepted solution]

Hello 🙂

It works, with this configuration I can send and receive CAN messages, with callback.