Add IRQ handler for CAN bus interrupt

Core/Src/cansend.c

@@ -129,7 +129,7 @@ void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
 /* END HAL_UART_TxCpltCallback */
 
 /* BEGIN HAL_UART_ErrorCallback */
-/**
+/**``MEN
   * @brief  Handle UART errors
   * @param  argument: UART handle
   * @retval None

Core/Src/stm32f4xx_it.c

@@ -41,7 +41,8 @@
 
 /* Private variables ---------------------------------------------------------*/
 /* USER CODE BEGIN PV */
-
+extern CAN_HandleTypeDef hcan1;
+extern CAN_HandleTypeDef hcan2;
 /* USER CODE END PV */
 
 /* Private function prototypes -----------------------------------------------*/
@@ -250,4 +251,20 @@ void DMA2_Stream7_IRQHandler(void)
 
 /* USER CODE BEGIN 1 */
 
+/**
+  * @brief This function handles CAN1 RX0 interrupt.
+  */
+void CAN1_RX0_IRQHandler(void)
+{
+  HAL_CAN_IRQHandler(&hcan1);
+}
+
+/**
+  * @brief This function handles CAN2 RX0 interrupt.
+  */
+void CAN2_RX0_IRQHandler(void)
+{
+  HAL_CAN_IRQHandler(&hcan2);
+}
+
 /* USER CODE END 1 */