mirror of
https://github.com/DCC-EX/CommandStation-EX.git
synced 2024-12-25 13:41:23 +01:00
85 lines
2.8 KiB
C++
85 lines
2.8 KiB
C++
/*
|
|
* © 2020, Chris Harlow. All rights reserved.
|
|
*
|
|
* This file is part of Asbelos DCC API
|
|
*
|
|
* This 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.
|
|
*
|
|
* It 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/>.
|
|
*/
|
|
#include <Arduino.h>
|
|
#include "MotorDriver.h"
|
|
#include "AnalogReadFast.h"
|
|
#include "DIAG.h"
|
|
|
|
|
|
|
|
#if defined(ARDUINO_ARCH_SAMD) || defined(ARDUINO_ARCH_SAMC) || defined(ARDUINO_ARCH_MEGAAVR)
|
|
#define WritePin digitalWrite
|
|
#define ReadPin digitalRead
|
|
#else
|
|
// use the DIO2 libraray for much faster pin access
|
|
#define GPIO2_PREFER_SPEED 1
|
|
#include <DIO2.h> // use IDE menu Tools..Manage Libraries to locate and install DIO2
|
|
#define WritePin digitalWrite2
|
|
#define ReadPin digitalRead2
|
|
#endif
|
|
|
|
MotorDriver::MotorDriver(byte power_pin, byte signal_pin, byte signal_pin2, byte brake_pin,
|
|
byte current_pin, float sense_factor, unsigned int trip_milliamps, byte fault_pin) {
|
|
powerPin=power_pin;
|
|
signalPin=signal_pin;
|
|
signalPin2=signal_pin2;
|
|
brakePin=brake_pin;
|
|
currentPin=current_pin;
|
|
senseFactor=sense_factor;
|
|
faultPin=fault_pin;
|
|
tripMilliamps=trip_milliamps;
|
|
rawCurrentTripValue=(int)(trip_milliamps / sense_factor);
|
|
pinMode(powerPin, OUTPUT);
|
|
pinMode(brakePin, OUTPUT);
|
|
pinMode(signalPin, OUTPUT);
|
|
if (signalPin2 != UNUSED_PIN) pinMode(signalPin2, OUTPUT);
|
|
pinMode(currentPin, INPUT);
|
|
if (faultPin != UNUSED_PIN) pinMode(faultPin, INPUT);
|
|
}
|
|
|
|
void MotorDriver::setPower(bool on) {
|
|
WritePin(powerPin, on ? HIGH : LOW);
|
|
}
|
|
void MotorDriver::setBrake( bool on) {
|
|
WritePin(brakePin, on ? HIGH : LOW);
|
|
}
|
|
|
|
void MotorDriver::setSignal( bool high) {
|
|
WritePin(signalPin, high ? HIGH : LOW);
|
|
if (signalPin2 != UNUSED_PIN) WritePin(signalPin2, high ? LOW : HIGH);
|
|
}
|
|
|
|
|
|
int MotorDriver::getCurrentRaw() {
|
|
if (faultPin != UNUSED_PIN && ReadPin(faultPin) == LOW && ReadPin(powerPin) == HIGH)
|
|
return (int)(32000/senseFactor);
|
|
|
|
// IMPORTANT: This function can be called in Interrupt() time within the 56uS timer
|
|
// The default analogRead takes ~100uS which is catastrphic
|
|
// so analogReadFast is used here. (-2uS)
|
|
return analogReadFast(currentPin);
|
|
}
|
|
|
|
unsigned int MotorDriver::raw2mA( int raw) {
|
|
return (unsigned int)(raw * senseFactor);
|
|
}
|
|
int MotorDriver::mA2raw( unsigned int mA) {
|
|
return (int)(mA / senseFactor);
|
|
}
|