diff options
| author | hathach <thach@tinyusb.org> | 2018-10-03 11:39:01 +0700 |
|---|---|---|
| committer | hathach <thach@tinyusb.org> | 2018-10-03 11:39:01 +0700 |
| commit | 08cbb03bddfa1a18ac8048e979fb2e9682beb1c2 (patch) | |
| tree | e66476c90dd9c506d01de8827f4a22ca1d9afb38 /ports/nrf/common-hal/busio | |
| parent | f543c8415d96aff96b252a0256795e1eb874f2ed (diff) | |
implement common_hal_busio_uart_clear_rx_buffer
Diffstat (limited to 'ports/nrf/common-hal/busio')
| -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) { |