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 294957fd3..a291af578 100644 --- a/ports/nrf/common-hal/busio/UART.c +++ b/ports/nrf/common-hal/busio/UART.c @@ -73,7 +73,11 @@ static void uart_callback_irq (const nrfx_uarte_event_t * event, void * context) switch ( event->type ) { case NRFX_UARTE_EVT_RX_DONE: for(uint8_t i=0; i < event->data.rxtx.bytes; i++) { - ringbuf_put(&self->rbuf, event->data.rxtx.p_data[i]); + if ( ringbuf_put(&self->rbuf, event->data.rxtx.p_data[i]) < 0 ) { + // if full overwrite old data + (void) ringbuf_get(&self->rbuf); + ringbuf_put(&self->rbuf, event->data.rxtx.p_data[i]); + } } // keep receiving |