diff options
| -rw-r--r-- | ports/rp2/machine_adc.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/ports/rp2/machine_adc.c b/ports/rp2/machine_adc.c index e5a428563..3594f4b12 100644 --- a/ports/rp2/machine_adc.c +++ b/ports/rp2/machine_adc.c @@ -74,14 +74,14 @@ static mp_obj_t mp_machine_adc_make_new(const mp_obj_type_t *type, size_t n_args const machine_pin_obj_t *pin = NULL; if (mp_obj_is_int(source)) { - // Get and validate channel number. channel = mp_obj_get_int(source); - if (ADC_IS_VALID_GPIO(channel)) { - channel = ADC_CHANNEL_FROM_GPIO(channel); - } else if (!(channel >= 0 && channel <= ADC_CHANNEL_TEMPSENSOR)) { - mp_raise_ValueError(MP_ERROR_TEXT("invalid channel")); + if (!(channel >= 0 && channel <= ADC_CHANNEL_TEMPSENSOR)) { + // Not a valid ADC channel, fallback to searching for a pin. + channel = -1; } - } else { + } + + if (channel == -1) { // Get GPIO and check it has ADC capabilities. pin = machine_pin_find(source); bool valid_adc_pin = false; |