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Change 12- to 16-bit scaling to match other ports

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Result is identical, implementation just resembles other ports instead of being all 1337 about it.
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Paint Your Dragon 2022-05-24 08:49:05 -07:00 committed by GitHub
parent c3f58193ca
commit 92fa02effa
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1 changed files with 4 additions and 2 deletions
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6
ports/mimxrt10xx/common-hal/analogio/AnalogIn.c
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@ -81,8 +81,10 @@ uint16_t common_hal_analogio_analogin_get_value(analogio_analogin_obj_t *self) {
}
// Stretch 12-bit ADC reading to 16 bits via 24-bit interim result
return (ADC_GetChannelConversionValue(self->pin->adc, ADC_CHANNEL_GROUP) * 0x1001) >> 8;
uint16_t value = ADC_GetChannelConversionValue(self->pin->adc, ADC_CHANNEL_GROUP);
// Stretch 12-bit ADC reading to 16-bit range
return (value << 4) | (value >> 8);
}
float common_hal_analogio_analogin_get_reference_voltage(analogio_analogin_obj_t *self) {