fix docs link err
@@ -438,6 +438,8 @@ static int _can_sendmsg(struct rt_can_device *can, const void *buf, rt_uint32_t
{
txheader.RTR = CAN_RTR_REMOTE;
}
+ /* clear TIR */
+ hcan->Instance->sTxMailBox[box_num].TIR &= CAN_TI0R_TXRQ;
/* Set up the Id */
if (RT_CAN_STDID == pmsg->ide)
{
