diff options
| -rw-r--r-- | ports/nrf/common-hal/busio/UART.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/ports/nrf/common-hal/busio/UART.c b/ports/nrf/common-hal/busio/UART.c index 8d0db34be..b2dbb56a1 100644 --- a/ports/nrf/common-hal/busio/UART.c +++ b/ports/nrf/common-hal/busio/UART.c @@ -250,7 +250,11 @@ uint32_t common_hal_busio_uart_rx_characters_available(busio_uart_obj_t *self) { } void common_hal_busio_uart_clear_rx_buffer(busio_uart_obj_t *self) { - + // Discard received byte, and queue 1-byte transfer for rx_characters_available() + if ( self->rx_count > 0 ) { + self->rx_count = -1; + _VERIFY_ERR(nrfx_uarte_rx(&self->uarte, self->buffer, 1)); + } } bool common_hal_busio_uart_ready_to_tx(busio_uart_obj_t *self) { |