summaryrefslogtreecommitdiff
path: root/src/app
diff options
context:
space:
mode:
Diffstat (limited to 'src/app')
-rw-r--r--src/app/adctest/main.cc49
1 files changed, 2 insertions, 47 deletions
diff --git a/src/app/adctest/main.cc b/src/app/adctest/main.cc
index 7a87ede..af3147f 100644
--- a/src/app/adctest/main.cc
+++ b/src/app/adctest/main.cc
@@ -17,54 +17,9 @@ void loop(void)
kout << "Temperature " << temp << " m°C" << endl;
for (uint8_t admux_sel = 0; admux_sel < 8; admux_sel++) {
- // measure with avcc reference
- ADMUX = _BV(REFS0) | admux_sel;
-
- // Enable ADC with /64 prescaler
- ADCSRA = _BV(ADEN) | _BV(ADPS2);
-
- // Start conversion
- ADCSRA |= _BV(ADSC);
-
- // wait until conversion is complete
- while (ADCSRA & _BV(ADSC)) ;
-
- uint8_t adcr_l = ADCL;
- uint8_t adcr_h = ADCH;
- uint16_t adcr = adcr_l + (adcr_h << 8);
- uint16_t vadc = (uint32_t)vcc * adcr / 1023L;
-
- kout << "ADC" << admux_sel << " " << vadc << " mV vs AVCC" << endl;
+ kout << "ADC" << admux_sel << " " << adc.getPin_mV(admux_sel, vcc) << " mV vs AVCC" << endl;
+ kout << "ADC" << admux_sel << " " << adc.getPin_mV(admux_sel) << " mV vs 1.1V bandgap" << endl;
}
-
- // enable bandgap; wait for it to stabilise
- ADMUX = _BV(REFS1) | _BV(REFS0);
- ADCSRA = _BV(ADEN) | _BV(ADPS2);
- arch.delay_ms(1);
-
- for (uint8_t admux_sel = 0; admux_sel < 8; admux_sel++) {
- // measure with bandgap reference
- ADMUX = _BV(REFS1) | _BV(REFS0) | admux_sel;
-
- // Enable ADC with /64 prescaler
- ADCSRA = _BV(ADEN) | _BV(ADPS2);
-
- // Start conversion
- ADCSRA |= _BV(ADSC);
-
- // wait until conversion is complete
- while (ADCSRA & _BV(ADSC)) ;
-
- uint8_t adcr_l = ADCL;
- uint8_t adcr_h = ADCH;
- uint16_t adcr = adcr_l + (adcr_h << 8);
- uint16_t vadc = 1100L * adcr / 1023L;
-
- kout << "ADC" << admux_sel << " " << vadc << " mV vs 1.1V bandgap" << endl;
- }
-
- // disable ADC
- ADCSRA &= ~_BV(ADEN);
}
int main(void)