Frederick Huang / mbed-STM32L452

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Dependents:   STM32L452_Nucleo_ticker

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Diff: targets/TARGET_STM/TARGET_STM32L0/serial_device.c

Revision:
177:d650f5d4c87a
Parent:
170:19eb464bc2be
--- a/targets/TARGET_STM/TARGET_STM32L0/serial_device.c	Wed Oct 25 14:53:38 2017 +0100
+++ b/targets/TARGET_STM/TARGET_STM32L0/serial_device.c	Wed Nov 08 13:50:44 2017 +0000
@@ -673,9 +673,9 @@
     HAL_UART_IRQHandler(huart);
     
     // Abort if an error occurs
-    if (return_event & SERIAL_EVENT_RX_PARITY_ERROR ||
-            return_event & SERIAL_EVENT_RX_FRAMING_ERROR ||
-            return_event & SERIAL_EVENT_RX_OVERRUN_ERROR) {
+    if ((return_event & SERIAL_EVENT_RX_PARITY_ERROR) ||
+        (return_event & SERIAL_EVENT_RX_FRAMING_ERROR) ||
+        (return_event & SERIAL_EVENT_RX_OVERRUN_ERROR)) {
         return return_event;
     }
     
@@ -749,7 +749,7 @@
     
     // clear flags
     __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_PEF | UART_CLEAR_FEF | UART_CLEAR_OREF);
-    volatile uint32_t tmpval = huart->Instance->RDR; // Clear RXNE flag
+    volatile uint32_t tmpval __attribute__((unused)) = huart->Instance->RDR; // Clear RXNE flag
     
     // reset states
     huart->RxXferCount = 0;