Merge pull request #2128 from LMESTM/fix_F4_serial_it_issue2119

[STM32] Serial interrupt TC vs. TXE

Author: 0xc0170

hal/targets/hal/TARGET_STM/TARGET_STM32F4/serial_api.c

@@ -771,7 +771,7 @@ void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
             NVIC_EnableIRQ(irq_n);
 #endif
         } else { // TxIrq
-            __HAL_UART_ENABLE_IT(handle, UART_IT_TXE);
+            __HAL_UART_ENABLE_IT(handle, UART_IT_TC);
             NVIC_SetVector(irq_n, vector);
             NVIC_EnableIRQ(irq_n);
 #if DEVICE_SERIAL_ASYNCH_DMA
@@ -788,7 +788,7 @@ void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
             // Check if TxIrq is disabled too
             if ((handle->Instance->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
         } else { // TxIrq
-            __HAL_UART_DISABLE_IT(handle, UART_IT_TXE);
+            __HAL_UART_DISABLE_IT(handle, UART_IT_TC);
             // Check if RxIrq is disabled too
             if ((handle->Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
         }

hal/targets/hal/TARGET_STM/TARGET_STM32F7/serial_api.c

@@ -422,7 +422,7 @@ void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
             // Check if TxIrq is disabled too
             if ((UartHandle.Instance->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
         } else { // TxIrq
-            __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TXE);
+            __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TC);
             // Check if RxIrq is disabled too
             if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
         }

hal/targets/hal/TARGET_STM/TARGET_STM32L1/serial_api.c

@@ -341,7 +341,7 @@ void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
             // Check if TxIrq is disabled too
             if ((UartHandle.Instance->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
         } else { // TxIrq
-            __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TXE);
+            __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TC);
             // Check if RxIrq is disabled too
             if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
         }

hal/targets/hal/TARGET_STM/TARGET_STM32L4/serial_api.c

@@ -456,7 +456,7 @@ void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
             // Check if TxIrq is disabled too
             if ((UartHandle.Instance->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
         } else { // TxIrq
-            __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TXE);
+            __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TC);
             // Check if RxIrq is disabled too
             if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
         }