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29 lines
730 B
C
29 lines
730 B
C
/**
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@file adc.c
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@brief Wunderboard ADC Helper Functions
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@version .01
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@section intro Code Overview
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This is the code for the Wunderboard ADC helper functions.
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*/
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#include "adc.h"
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unsigned char read_adc(uint8_t channel){
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unsigned char test;
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ADMUX = 0x60 | channel; // Set the channel to the one we want
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ADCSRA = 0b11000110; // Start a new sample.
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while ((ADCSRA & 0b00010000) == 0 ); // Wait for a Valid Sample
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ADCSRA |= 0b00010000; // Tell ADC you have the sample you want.
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ADCSRA |= 0b01000000; // Start a new sample.
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while ((ADCSRA & 0b00010000) == 0 ); // Wait for a Valid Sample
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ADCSRA |= 0b00010000; // Tell ADC you have the sample you want.
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test = ADCH;
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ADCSRA = 0x00; // Disable the ADC
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return (test);
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}
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