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comparison main.c @ 368:d4c9c360448f

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merge
author Matt Johnston <matt@ucc.asn.au>
date Tue, 26 Jun 2012 21:21:09 +0800
parents daad73f65c0f 3db118498b97
children ca08442635ca
comparison
equal deleted inserted replaced
366:daad73f65c0f 368:d4c9c360448f
623 static uint16_t 623 static uint16_t
624 adc_vcc() 624 adc_vcc()
625 { 625 {
626 PRR &= ~_BV(PRADC); 626 PRR &= ~_BV(PRADC);
627 627
628 // left adjust 628 // /16 prescaler
629 ADMUX = _BV(ADLAR);
630
631 // /128 prescaler
632 ADCSRA = _BV(ADEN) | _BV(ADPS2); 629 ADCSRA = _BV(ADEN) | _BV(ADPS2);
633 630
634 // set to measure 1.1 reference 631 // set to measure 1.1 reference
635 ADMUX = _BV(REFS0) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1); 632 ADMUX = _BV(REFS0) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1);
636 // average a number of samples 633 // average a number of samples