diff options
| -rw-r--r-- | ports/stm32/uart.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/ports/stm32/uart.c b/ports/stm32/uart.c index e514709b7..415655103 100644 --- a/ports/stm32/uart.c +++ b/ports/stm32/uart.c @@ -745,6 +745,16 @@ void uart_irq_handler(mp_uint_t uart_id) { } } } + // If RXNE is clear but ORE set then clear the ORE flag (it's tied to RXNE IRQ) + #if defined(STM32F4) + else if (self->uartx->SR & USART_SR_ORE) { + (void)self->uartx->DR; + } + #else + else if (self->uartx->ISR & USART_ISR_ORE) { + self->uartx->ICR = USART_ICR_ORECF; + } + #endif // Set user IRQ flags self->mp_irq_flags = 0; |