[HAL][UART] Add HAL_UART_RXEVENT_IDLE event notification to user in case of HAL_UARTEx_ReceiveToIdle_DMA() use with Circular DMA, even if occurring just after TC event
diff --git a/Src/stm32f4xx_hal_uart.c b/Src/stm32f4xx_hal_uart.c
index d5c86c8..9e874be 100644
--- a/Src/stm32f4xx_hal_uart.c
+++ b/Src/stm32f4xx_hal_uart.c
@@ -2526,6 +2526,28 @@
HAL_UARTEx_RxEventCallback(huart, (huart->RxXferSize - huart->RxXferCount));
#endif /* USE_HAL_UART_REGISTER_CALLBACKS */
}
+ else
+ {
+ /* If DMA is in Circular mode, Idle event is to be reported to user
+ even if occurring after a Transfer Complete event from DMA */
+ if (nb_remaining_rx_data == huart->RxXferSize)
+ {
+ if (huart->hdmarx->Init.Mode == DMA_CIRCULAR)
+ {
+ /* Initialize type of RxEvent that correspond to RxEvent callback execution;
+ In this case, Rx Event type is Idle Event */
+ huart->RxEventType = HAL_UART_RXEVENT_IDLE;
+
+#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
+ /*Call registered Rx Event callback*/
+ huart->RxEventCallback(huart, huart->RxXferSize);
+#else
+ /*Call legacy weak Rx Event callback*/
+ HAL_UARTEx_RxEventCallback(huart, huart->RxXferSize);
+#endif /* (USE_HAL_UART_REGISTER_CALLBACKS) */
+ }
+ }
+ }
return;
}
else
