mirror of
https://github.com/DCC-EX/CommandStation-EX.git
synced 2024-11-23 16:16:13 +01:00
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/*
|
|
* AnalogReadFast.h
|
|
*
|
|
* Copyright (C) 2016 Albert van Dalen http://www.avdweb.nl
|
|
*
|
|
* This file is part of CommandStation.
|
|
*
|
|
* CommandStation is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* CommandStation is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with CommandStation. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef COMMANDSTATION_DCC_ANALOGREADFAST_H_
|
|
#define COMMANDSTATION_DCC_ANALOGREADFAST_H_
|
|
|
|
#include <Arduino.h>
|
|
|
|
int inline analogReadFast(uint8_t ADCpin);
|
|
#if defined(ARDUINO_ARCH_MEGAAVR)
|
|
|
|
int inline analogReadFast(uint8_t ADCpin)
|
|
{ byte ADC0CTRLCoriginal = ADC0.CTRLC;
|
|
ADC0.CTRLC = (ADC0CTRLCoriginal & 0b00110000) + 0b01000011;
|
|
int adc = analogRead(ADCpin);
|
|
ADC0.CTRLC = ADC0CTRLCoriginal;
|
|
return adc;
|
|
}
|
|
#else
|
|
int inline analogReadFast(uint8_t ADCpin)
|
|
{ byte ADCSRAoriginal = ADCSRA;
|
|
ADCSRA = (ADCSRA & B11111000) | 4;
|
|
int adc = analogRead(ADCpin);
|
|
ADCSRA = ADCSRAoriginal;
|
|
return adc;
|
|
}
|
|
#endif
|
|
#endif // COMMANDSTATION_DCC_ANALOGREADFAST_H_
|