Subversion Repositories group.electronics

Rev

Rev 28 | Rev 30 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 28 Rev 29
Line 77... Line 77...
77 
 
 77 
 
78 
int main(void) {
 78 
int main(void) {
79 
 
 79 
 
80 
  ACSR |= (1<<ACD); // Disable analog comparator
 80 
  ACSR |= (1<<ACD); // Disable analog comparator
81 
 
 81 
 
82 
  ADMUX = (1<<ADLAR) | (0<<REFS0) | (0<<REFS1);
 82 
  //ADMUX = (1<<ADLAR) | (0<<REFS0);
83 
  ADCSRA = (1<<ADEN) | (0<<ADSC);
 83 
  ADCSRA = (1<<ADEN) | (1<<ADPS2) | (1<<ADPS1) | (1<<ADPS0) | (0<<ADSC);
84 
 
 84 
 
85 
  /*
 85 
  /*
86 
  DDR : 1 = Output, 0 = Input
 86 
  DDR : 1 = Output, 0 = Input
87 
  PORT: 1 = Pullup for Input, otherwise set output
 87 
  PORT: 1 = Pullup for Input, otherwise set output
88 
  PIN : Read input pin
 88 
  PIN : Read input pin
Line 170... Line 170...
170 
    }
 170 
    }
171 
  }
 171 
  }
172 
}
 172 
}
173 
 
 173 
 
174 
uint8_t analogRead(uint8_t pin) {
 174 
uint8_t analogRead(uint8_t pin) {
175 
	ADMUX |= (1<<pin);
 175 
	//ADMUX |= (1<<pin);
- 
 
 176 
	ADMUX = (1<<ADLAR) | (0<<REFS0) | (pin & 0x0f);
176 
	ADCSRA |= (1<<ADSC);		// Start converting
 177 
	ADCSRA |= (1<<ADSC);		// Start converting
177 
 
 178 
 
178 
	while (((ADCSRA >> ADSC) & 1)) {}	//Wait until conversion finished
 179 
	while (((ADCSRA >> ADSC) & 1)) {}	//Wait until conversion finished
179 
	uint8_t result = ADCH;
 180 
	uint8_t result = ADCH;
180 
	ADCSRA |= (0<<ADSC);		// Stop converting
 181 
	ADCSRA |= (0<<ADSC);		// Stop converting