diff options
Diffstat (limited to 'keyboard/hhkb_rn42/rn42')
| -rw-r--r-- | keyboard/hhkb_rn42/rn42/battery.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/keyboard/hhkb_rn42/rn42/battery.c b/keyboard/hhkb_rn42/rn42/battery.c index c6988fe336..0320e1baf1 100644 --- a/keyboard/hhkb_rn42/rn42/battery.c +++ b/keyboard/hhkb_rn42/rn42/battery.c @@ -21,6 +21,10 @@ void battery_init(void) ADMUX = (1<<REFS1) | (1<<REFS0); ADCSRA = (1<<ADPS2) | (1<<ADPS1) | (1<<ADPS0); ADCSRA |= (1<<ADEN); + + // ADC disable voltate divider(PF4) + DDRF |= (1<<4); + PORTF &= ~(1<<4); } // Indicator for battery @@ -79,6 +83,10 @@ bool battery_charging(void) // Returns voltage in mV uint16_t battery_voltage(void) { + // ADC disable voltate divider(PF4) + DDRF |= (1<<4); + PORTF |= (1<<4); + volatile uint16_t bat; //ADCSRA |= (1<<ADEN); @@ -98,6 +106,10 @@ uint16_t battery_voltage(void) //ADCSRA &= ~(1<<ADEN); + // ADC disable voltate divider(PF4) + DDRF |= (1<<4); + PORTF &= ~(1<<4); + return (bat - BATTERY_ADC_OFFSET) * BATTERY_ADC_RESOLUTION; } |