Diff: targets/TARGET_STM/TARGET_STM32L4/serial_device.c

Revision:

170:19eb464bc2be

Parent:

169:e3b6fe271b81

--- a/targets/TARGET_STM/TARGET_STM32L4/serial_device.c	Wed Jul 19 17:31:21 2017 +0100
+++ b/targets/TARGET_STM/TARGET_STM32L4/serial_device.c	Thu Aug 03 13:13:39 2017 +0100
@@ -217,16 +217,15 @@
     UART_HandleTypeDef * huart = &uart_handlers[id];
     
     if (serial_irq_ids[id] != 0) {
-        if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TC) != RESET) {
-            if (__HAL_UART_GET_IT(huart, UART_IT_TC) != RESET) {
-            irq_handler(serial_irq_ids[id], TxIrq);
-                __HAL_UART_CLEAR_FLAG(huart, UART_FLAG_TC);
+        if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TXE) != RESET) {
+            if (__HAL_UART_GET_IT(huart, UART_IT_TXE) != RESET) {
+                irq_handler(serial_irq_ids[id], TxIrq);
             }
         }
         if (__HAL_UART_GET_FLAG(huart, UART_FLAG_RXNE) != RESET) {
             if (__HAL_UART_GET_IT(huart, UART_IT_RXNE) != RESET) {
-            irq_handler(serial_irq_ids[id], RxIrq);
-                __HAL_UART_CLEAR_FLAG(huart, UART_FLAG_RXNE);
+                irq_handler(serial_irq_ids[id], RxIrq);
+                /*  Flag has been cleared when reading the content */
             }
         }
         if (__HAL_UART_GET_FLAG(huart, UART_FLAG_ORE) != RESET) {
@@ -330,7 +329,7 @@
         if (irq == RxIrq) {
             __HAL_UART_ENABLE_IT(huart, UART_IT_RXNE);
         } else { // TxIrq
-            __HAL_UART_ENABLE_IT(huart, UART_IT_TC);
+            __HAL_UART_ENABLE_IT(huart, UART_IT_TXE);
         }
         NVIC_SetVector(irq_n, vector);
         NVIC_EnableIRQ(irq_n);
@@ -344,7 +343,7 @@
                 all_disabled = 1;
             }
         } else { // TxIrq
-            __HAL_UART_DISABLE_IT(huart, UART_IT_TC);
+            __HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
             // Check if RxIrq is disabled too
             if ((huart->Instance->CR1 & USART_CR1_RXNEIE) == 0) {
                 all_disabled = 1;