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Diffstat (limited to 'spaghetti-monster')
| -rw-r--r-- | spaghetti-monster/fsm-adc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/spaghetti-monster/fsm-adc.c b/spaghetti-monster/fsm-adc.c index 9e52ab6..b8b00de 100644 --- a/spaghetti-monster/fsm-adc.c +++ b/spaghetti-monster/fsm-adc.c @@ -101,7 +101,7 @@ inline void ADC_off() { #ifdef USE_VOLTAGE_DIVIDER static inline uint8_t calc_voltage_divider(uint16_t value) { // use 9.7 fixed-point to get sufficient precision - uint16_t adc_per_volt = ((ADC_44<<7) - (ADC_22<<7)) / (44-22); + uint16_t adc_per_volt = ((ADC_44<<5) - (ADC_22<<5)) / (44-22); // incoming value is 8.2 fixed-point, so shift it 2 bits less uint8_t result = ((value<<5) / adc_per_volt) + VOLTAGE_FUDGE_FACTOR; return result; |