diff options
| -rw-r--r-- | ports/samd/machine_uart.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/ports/samd/machine_uart.c b/ports/samd/machine_uart.c index c8f25d985..28261c2fc 100644 --- a/ports/samd/machine_uart.c +++ b/ports/samd/machine_uart.c @@ -263,8 +263,11 @@ STATIC mp_obj_t machine_uart_init_helper(machine_uart_obj_t *self, size_t n_args #if defined(MCU_SAMD21) if (self->tx_pad_config.pad_nr == 2) { // Map pad 2 to TXPO = 1 txpo = 1; - } + } else #endif + if (self->tx_pad_config.pad_nr != 0) { + mp_raise_ValueError(MP_ERROR_TEXT("invalid tx pin")); + } uart->USART.CTRLA.reg = SERCOM_USART_CTRLA_DORD // Data order |