diff options
Diffstat (limited to '')
| -rw-r--r-- | tk-attiny.h | 3 | ||||
| -rw-r--r-- | tk-voltage.h | 14 |
2 files changed, 17 insertions, 0 deletions
diff --git a/tk-attiny.h b/tk-attiny.h index 4fee640..6390416 100644 --- a/tk-attiny.h +++ b/tk-attiny.h @@ -70,6 +70,9 @@ #define ADC_DIDR ADC1D // Digital input disable bit corresponding with PB2 #define ADC_PRSCL 0x06 // clk/64 +//#define TEMP_DIDR ADC4D +#define TEMP_CHANNEL 0b00001111 + #endif // FET_7135_LAYOUT #ifdef FERRERO_ROCHER_LAYOUT diff --git a/tk-voltage.h b/tk-voltage.h index 5eaf0d4..8421ef3 100644 --- a/tk-voltage.h +++ b/tk-voltage.h @@ -23,6 +23,20 @@ #include "tk-attiny.h" #include "tk-calibration.h" +#ifdef TEMPERATURE_MON +inline void ADC_on_temperature() { + // TODO: (?) enable ADC Noise Reduction Mode, Section 17.7 on page 128 + // (apparently can only read while the CPU is in idle mode though) + // select ADC4 by writing 0b00001111 to ADMUX + // 1.1v reference, left-adjust, ADC4 + ADMUX = (1 << V_REF) | (1 << ADLAR) | TEMP_CHANNEL; + // disable digital input on ADC pin to reduce power consumption + //DIDR0 |= (1 << TEMP_DIDR); + // enable, start, prescale + ADCSRA = (1 << ADEN ) | (1 << ADSC ) | ADC_PRSCL; +} +#endif // TEMPERATURE_MON + #ifdef VOLTAGE_MON inline void ADC_on() { // disable digital input on ADC pin to reduce power consumption |