diff options
| author | robert-hh <robert@hammelrath.com> | 2022-11-24 11:51:09 +0100 |
|---|---|---|
| committer | Damien George <damien@micropython.org> | 2022-12-14 12:45:51 +1100 |
| commit | f78dd25a2cb729cc5b59f5df8cda1b57535c4244 (patch) | |
| tree | 3ef32a71945be24c9930b6e427e5a37c745a6f3f | |
| parent | 5b1fd8802a14bb59ca1ecc30df317e5994b2a327 (diff) | |
samd/machine_uart: Check the UART TX pin assignment.
Check, if TX is at Pad 0 (SAMD51), or Pad 0 or 2 (SAMD21).
| -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 |