23 lines
748 B
C
23 lines
748 B
C
//ADC
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#include <avr/io.h>
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#define F_CPU 16000000//16MHz
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int main(void)
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{
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DDRL = 0xff;//port L direction: output //pins- 49:42
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DDRC = 0xff;//port C direction: output //pins- 37:30
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//DDRA = 0x00;//port A direction: input //pins- 22:29
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ADCSRA = 0x87;// ADC enabled and prescaler=128
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ADMUX = 0x61;// Ref= Vcc// data is left-justified //ADC0 is source pin
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while(1)
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{
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//ADIF=0 ifu wanna reset, otherwise you keep it as 1 so that conversion doesnt start again
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//ADCSRA |= (1<<ADSC); //to start conversion, we set ADSC bit to 1
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ADCSRA |= 0x40; //ADSC=1
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//while(ADCSRA && (1<<ADIF)==0);// waiting for conversion to finish
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while(ADIF==0);
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PORTL = ADCL;
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PORTC = ADCH;
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}
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} |