diff options
Diffstat (limited to 'platforms/avr/drivers/analog.h')
| -rw-r--r-- | platforms/avr/drivers/analog.h | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/platforms/avr/drivers/analog.h b/platforms/avr/drivers/analog.h index fa2fb0d89b..fb13e106ff 100644 --- a/platforms/avr/drivers/analog.h +++ b/platforms/avr/drivers/analog.h @@ -32,21 +32,21 @@ int16_t adc_read(uint8_t mux); } #endif -#define ADC_REF_EXTERNAL 0 // AREF, Internal Vref turned off -#define ADC_REF_POWER _BV(REFS0) // AVCC with external capacitor on AREF pin -#define ADC_REF_INTERNAL (_BV(REFS1) | _BV(REFS0)) // Internal 2.56V Voltage Reference with external capacitor on AREF pin (1.1V for 328P) +#define ADC_REF_EXTERNAL 0 // AREF, Internal Vref turned off +#define ADC_REF_POWER _BV(REFS0) // AVCC with external capacitor on AREF pin +#define ADC_REF_INTERNAL (_BV(REFS1) | _BV(REFS0)) // Internal 2.56V Voltage Reference with external capacitor on AREF pin (1.1V for 328P) // These prescaler values are for high speed mode, ADHSM = 1 #if F_CPU == 16000000L || F_CPU == 12000000L -# define ADC_PRESCALER (_BV(ADPS2) | _BV(ADPS1)) // /64 +# define ADC_PRESCALER (_BV(ADPS2) | _BV(ADPS1)) // /64 #elif F_CPU == 8000000L -# define ADC_PRESCALER (_BV(ADPS2) | _BV(ADPS0)) // /32 +# define ADC_PRESCALER (_BV(ADPS2) | _BV(ADPS0)) // /32 #elif F_CPU == 4000000L -# define ADC_PRESCALER (_BV(ADPS2)) // /16 +# define ADC_PRESCALER (_BV(ADPS2)) // /16 #elif F_CPU == 2000000L -# define ADC_PRESCALER (_BV(ADPS1) | _BV(ADPS0)) // /8 +# define ADC_PRESCALER (_BV(ADPS1) | _BV(ADPS0)) // /8 #elif F_CPU == 1000000L -# define ADC_PRESCALER _BV(ADPS1) // /4 +# define ADC_PRESCALER _BV(ADPS1) // /4 #else -# define ADC_PRESCALER _BV(ADPS0) // /2 +# define ADC_PRESCALER _BV(ADPS0) // /2 #endif |