diff options
| -rw-r--r-- | ports/stm32/uart.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/ports/stm32/uart.c b/ports/stm32/uart.c index cdc3e2670..5071fed44 100644 --- a/ports/stm32/uart.c +++ b/ports/stm32/uart.c @@ -597,7 +597,9 @@ int uart_rx_char(pyb_uart_obj_t *self) { } else { // no buffering #if defined(STM32F0) || defined(STM32F7) || defined(STM32L4) || defined(STM32H7) - return self->uartx->RDR & self->char_mask; + int data = self->uartx->RDR & self->char_mask; + self->uartx->ICR = USART_ICR_ORECF; // clear ORE if it was set + return data; #else return self->uartx->DR & self->char_mask; #endif @@ -722,6 +724,7 @@ void uart_irq_handler(mp_uint_t uart_id) { // only read data if room in buf #if defined(STM32F0) || defined(STM32F7) || defined(STM32L4) || defined(STM32H7) int data = self->uartx->RDR; // clears UART_FLAG_RXNE + self->uartx->ICR = USART_ICR_ORECF; // clear ORE if it was set #else int data = self->uartx->DR; // clears UART_FLAG_RXNE #endif |