adc.h

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#ifndef ADC_H_
#define ADC_H_
 
    #ifndef ADC_RESOLUTION
        #define ADC_RESOLUTION ADC_RESSEL_10BIT_gc
    #endif
 
    #ifndef ADC_CAPACITANCE
        #define ADC_CAPACITANCE 1
    #endif
 
    #ifndef ADC_REFERENCE
        #define ADC_REFERENCE ADC_REFSEL_INTREF_gc 
    #endif
 
    #if ADC_REFERENCE == ADC_REFSEL_INTREF_gc
        #ifndef VREF_REFSEL
            #define VREF_REFSEL VREF_ADC0REFSEL_1V5_gc
        #endif
    #endif
 
    #ifndef ADC_PRESCALER
        #define ADC_PRESCALER ADC_PRESC_DIV256_gc
    #endif
 
    #ifndef ADC_INIT_DELAY
        #define ADC_INIT_DELAY ADC_INITDLY_DLY0_gc
    #endif
 
    #ifndef ADC_SAMPLE_DELAY_VARIATION
        #define ADC_SAMPLE_DELAY_VARIATION ADC_ASDV_ASVOFF_gc
    #endif
 
    #ifndef ADC_SAMPLE_DELAY
        #define ADC_SAMPLE_DELAY 8
    #endif
 
    #ifndef ADC_SAMPLE_LENGTH
        #define ADC_SAMPLE_LENGTH 8
    #endif
 
    #ifndef ADC_ADIE
        //#define ADC_ADIE
    #endif
 
    #include <avr/io.h>

    enum ADC_Accumulation_t
    {
        ADC_Sample_None=ADC_SAMPNUM_ACC1_gc,
        ADC_Sample_2=ADC_SAMPNUM_ACC2_gc,
        ADC_Sample_4=ADC_SAMPNUM_ACC4_gc,
        ADC_Sample_8=ADC_SAMPNUM_ACC8_gc,
        ADC_Sample_16=ADC_SAMPNUM_ACC16_gc,
        ADC_Sample_32=ADC_SAMPNUM_ACC32_gc,
        ADC_Sample_64=ADC_SAMPNUM_ACC64_gc
    };

    typedef enum ADC_Accumulation_t ADC_Accumulation;

    enum ADC_Channel_t
    {
        ADC_CH0=ADC_MUXPOS_AIN0_gc,
        ADC_CH1=ADC_MUXPOS_AIN1_gc,
        ADC_CH2=ADC_MUXPOS_AIN2_gc,
        ADC_CH3=ADC_MUXPOS_AIN3_gc,
        ADC_CH4=ADC_MUXPOS_AIN4_gc,
        ADC_CH5=ADC_MUXPOS_AIN5_gc,
        ADC_CH6=ADC_MUXPOS_AIN6_gc,
        ADC_CH7=ADC_MUXPOS_AIN7_gc,
        ADC_CH8=ADC_MUXPOS_AIN8_gc,
        ADC_CH9=ADC_MUXPOS_AIN9_gc,
        ADC_CH10=ADC_MUXPOS_AIN10_gc,
        ADC_CH11=ADC_MUXPOS_AIN11_gc,
        ADC_INTREF=ADC_MUXPOS_INTREF_gc,
        ADC_GND=ADC_MUXPOS_GND_gc
    };

    typedef enum ADC_Channel_t ADC_Channel;
 
                void adc_init(void);
                void adc_channel(ADC_Channel channel);
                void adc_accumulation(ADC_Accumulation samples);
                void adc_disable(void);
            
    #ifndef ADC_ADIE
        unsigned int adc_read(void);
        unsigned int adc_average(unsigned char samples);
    #endif
 
#endif /* ADC_H_ */