diff options
| -rw-r--r-- | atmel-samd/common-hal/busio/UART.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/atmel-samd/common-hal/busio/UART.c b/atmel-samd/common-hal/busio/UART.c index c682a14be..f172a1ecc 100644 --- a/atmel-samd/common-hal/busio/UART.c +++ b/atmel-samd/common-hal/busio/UART.c @@ -105,8 +105,9 @@ static void _busio_uart_interrupt_handler(uint8_t instance) self->buffer_size++; if (module->character_size == USART_CHARACTER_SIZE_9BIT) { + buffer_end = (self->buffer_start + self->buffer_size) % self->buffer_length; /* 9-bit data, write next received byte to the buffer */ - self->buffer[buffer_end + 1] = (received_data >> 8); + self->buffer[buffer_end] = (received_data >> 8); self->buffer_size++; } |