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spresense: return the correct value for Analog In

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This commit is contained in:
Kamil Tomaszewski 2021-03-01 15:45:10 +01:00
parent 538cd7eada
commit d68fdf3a3d
1 changed files with 2 additions and 2 deletions
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ports/cxd56/common-hal/analogio/AnalogIn.c
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@ -105,11 +105,11 @@ bool common_hal_analogio_analogin_deinited(analogio_analogin_obj_t *self) {
} }
uint16_t common_hal_analogio_analogin_get_value(analogio_analogin_obj_t *self) { uint16_t common_hal_analogio_analogin_get_value(analogio_analogin_obj_t *self) {
uint16_t value = 0; int16_t value = 0;
read(analogin_dev[self->number].fd, &value, sizeof(value)); read(analogin_dev[self->number].fd, &value, sizeof(value));
return value; return (uint16_t) 32768 + (uint16_t) value;
} }
// Reference voltage is a fixed value which is depending on the board. // Reference voltage is a fixed value which is depending on the board.