mirror of
https://github.com/DCC-EX/CommandStation-EX.git
synced 2024-11-24 08:36:14 +01:00
699 lines
24 KiB
C++
699 lines
24 KiB
C++
/*
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* © 2022-2023 Paul M Antoine
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* © 2021 Mike S
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* © 2021 Fred Decker
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* © 2020-2023 Harald Barth
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* © 2020-2021 Chris Harlow
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* © 2023 Colin Murdoch
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* All rights reserved.
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*
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* This file is part of CommandStation-EX
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*
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* This is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* It is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with CommandStation. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <Arduino.h>
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#include "MotorDriver.h"
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#include "DCCWaveform.h"
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#include "DCCTimer.h"
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#include "DIAG.h"
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#include "EXRAIL2.h"
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unsigned long MotorDriver::globalOverloadStart = 0;
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volatile portreg_t shadowPORTA;
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volatile portreg_t shadowPORTB;
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volatile portreg_t shadowPORTC;
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#if defined(ARDUINO_ARCH_STM32)
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volatile portreg_t shadowPORTD;
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volatile portreg_t shadowPORTE;
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volatile portreg_t shadowPORTF;
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#endif
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MotorDriver::MotorDriver(int16_t power_pin, byte signal_pin, byte signal_pin2, int16_t brake_pin,
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byte current_pin, float sense_factor, unsigned int trip_milliamps, int16_t fault_pin) {
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const FSH * warnString = F("** WARNING **");
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invertPower=power_pin < 0;
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if (invertPower) {
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powerPin = 0-power_pin;
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IODevice::write(powerPin,HIGH);// set to OUTPUT and off
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} else {
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powerPin = power_pin;
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IODevice::write(powerPin,LOW);// set to OUTPUT and off
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}
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signalPin=signal_pin;
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getFastPin(F("SIG"),signalPin,fastSignalPin);
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pinMode(signalPin, OUTPUT);
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fastSignalPin.shadowinout = NULL;
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if (HAVE_PORTA(fastSignalPin.inout == &PORTA)) {
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DIAG(F("Found PORTA pin %d"),signalPin);
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fastSignalPin.shadowinout = fastSignalPin.inout;
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fastSignalPin.inout = &shadowPORTA;
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}
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if (HAVE_PORTB(fastSignalPin.inout == &PORTB)) {
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DIAG(F("Found PORTB pin %d"),signalPin);
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fastSignalPin.shadowinout = fastSignalPin.inout;
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fastSignalPin.inout = &shadowPORTB;
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}
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if (HAVE_PORTC(fastSignalPin.inout == &PORTC)) {
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DIAG(F("Found PORTC pin %d"),signalPin);
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fastSignalPin.shadowinout = fastSignalPin.inout;
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fastSignalPin.inout = &shadowPORTC;
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}
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if (HAVE_PORTD(fastSignalPin.inout == &PORTD)) {
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DIAG(F("Found PORTD pin %d"),signalPin);
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fastSignalPin.shadowinout = fastSignalPin.inout;
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fastSignalPin.inout = &shadowPORTD;
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}
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if (HAVE_PORTE(fastSignalPin.inout == &PORTE)) {
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DIAG(F("Found PORTE pin %d"),signalPin);
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fastSignalPin.shadowinout = fastSignalPin.inout;
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fastSignalPin.inout = &shadowPORTE;
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}
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if (HAVE_PORTF(fastSignalPin.inout == &PORTF)) {
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DIAG(F("Found PORTF pin %d"),signalPin);
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fastSignalPin.shadowinout = fastSignalPin.inout;
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fastSignalPin.inout = &shadowPORTF;
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}
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signalPin2=signal_pin2;
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if (signalPin2!=UNUSED_PIN) {
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dualSignal=true;
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getFastPin(F("SIG2"),signalPin2,fastSignalPin2);
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pinMode(signalPin2, OUTPUT);
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fastSignalPin2.shadowinout = NULL;
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if (HAVE_PORTA(fastSignalPin2.inout == &PORTA)) {
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DIAG(F("Found PORTA pin %d"),signalPin2);
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fastSignalPin2.shadowinout = fastSignalPin2.inout;
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fastSignalPin2.inout = &shadowPORTA;
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}
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if (HAVE_PORTB(fastSignalPin2.inout == &PORTB)) {
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DIAG(F("Found PORTB pin %d"),signalPin2);
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fastSignalPin2.shadowinout = fastSignalPin2.inout;
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fastSignalPin2.inout = &shadowPORTB;
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}
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if (HAVE_PORTC(fastSignalPin2.inout == &PORTC)) {
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DIAG(F("Found PORTC pin %d"),signalPin2);
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fastSignalPin2.shadowinout = fastSignalPin2.inout;
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fastSignalPin2.inout = &shadowPORTC;
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}
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if (HAVE_PORTD(fastSignalPin2.inout == &PORTD)) {
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DIAG(F("Found PORTD pin %d"),signalPin2);
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fastSignalPin2.shadowinout = fastSignalPin2.inout;
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fastSignalPin2.inout = &shadowPORTD;
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}
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if (HAVE_PORTE(fastSignalPin2.inout == &PORTE)) {
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DIAG(F("Found PORTE pin %d"),signalPin2);
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fastSignalPin2.shadowinout = fastSignalPin2.inout;
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fastSignalPin2.inout = &shadowPORTE;
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}
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if (HAVE_PORTF(fastSignalPin2.inout == &PORTF)) {
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DIAG(F("Found PORTF pin %d"),signalPin2);
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fastSignalPin2.shadowinout = fastSignalPin2.inout;
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fastSignalPin2.inout = &shadowPORTF;
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}
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}
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else dualSignal=false;
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if (brake_pin!=UNUSED_PIN){
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invertBrake=brake_pin < 0;
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if (invertBrake)
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brake_pin = 0-brake_pin;
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if (brake_pin > MAX_PIN)
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DIAG(F("%S Brake pin %d > %d"), warnString, brake_pin, MAX_PIN);
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brakePin=(byte)brake_pin;
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getFastPin(F("BRAKE"),brakePin,fastBrakePin);
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// if brake is used for railcom cutout we need to do PORTX register trick here as well
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pinMode(brakePin, OUTPUT);
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setBrake(true); // start with brake on in case we hace DC stuff going on
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} else {
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brakePin=UNUSED_PIN;
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}
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currentPin=current_pin;
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if (currentPin!=UNUSED_PIN) {
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int ret = ADCee::init(currentPin);
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if (ret < -1010) { // XXX give value a name later
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DIAG(F("ADCee::init error %d, disable current pin %d"), ret, currentPin);
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currentPin = UNUSED_PIN;
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}
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}
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senseOffset=0; // value can not be obtained until waveform is activated
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if (fault_pin != UNUSED_PIN) {
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invertFault=fault_pin < 0;
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if (invertFault)
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fault_pin = 0-fault_pin;
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if (fault_pin > MAX_PIN)
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DIAG(F("%S Fault pin %d > %d"), warnString, fault_pin, MAX_PIN);
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faultPin=(byte)fault_pin;
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DIAG(F("Fault pin = %d invert %d"), faultPin, invertFault);
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getFastPin(F("FAULT"),faultPin, 1 /*input*/, fastFaultPin);
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pinMode(faultPin, INPUT);
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} else {
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faultPin=UNUSED_PIN;
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}
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// This conversion performed at compile time so the remainder of the code never needs
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// float calculations or libraray code.
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senseFactorInternal=sense_factor * senseScale;
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tripMilliamps=trip_milliamps;
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#ifdef MAX_CURRENT
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if (MAX_CURRENT > 0 && MAX_CURRENT < tripMilliamps)
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tripMilliamps = MAX_CURRENT;
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#endif
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rawCurrentTripValue=mA2raw(tripMilliamps);
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if (rawCurrentTripValue + senseOffset > ADCee::ADCmax()) {
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// This would mean that the values obtained from the ADC never
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// can reach the trip value. So independent of the current, the
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// short circuit protection would never trip. So we adjust the
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// trip value so that it is tiggered when the ADC reports it's
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// maximum value instead.
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// DIAG(F("Changing short detection value from %d to %d mA"),
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// raw2mA(rawCurrentTripValue), raw2mA(ADCee::ADCmax()-senseOffset));
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rawCurrentTripValue=ADCee::ADCmax()-senseOffset;
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}
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if (currentPin==UNUSED_PIN)
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DIAG(F("%S No current or short detection"), warnString);
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else {
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DIAG(F("Pin %d Max %dmA (%d)"), currentPin, raw2mA(rawCurrentTripValue), rawCurrentTripValue);
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// self testing diagnostic for the non-float converters... may be removed when happy
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// DIAG(F("senseFactorInternal=%d raw2mA(1000)=%d mA2Raw(1000)=%d"),
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// senseFactorInternal, raw2mA(1000),mA2raw(1000));
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}
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progTripValue = mA2raw(TRIP_CURRENT_PROG);
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}
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bool MotorDriver::isPWMCapable() {
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return (!dualSignal) && DCCTimer::isPWMPin(signalPin);
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}
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void MotorDriver::setPower(POWERMODE mode) {
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if (powerMode == mode) return;
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//DIAG(F("Track %c POWERMODE=%d"), trackLetter, (int)mode);
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lastPowerChange[(int)mode] = micros();
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if (mode == POWERMODE::OVERLOAD)
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globalOverloadStart = lastPowerChange[(int)mode];
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bool on=(mode==POWERMODE::ON || mode ==POWERMODE::ALERT);
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if (on) {
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// when switching a track On, we need to check the crrentOffset with the pin OFF
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if (powerMode==POWERMODE::OFF && currentPin!=UNUSED_PIN) {
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senseOffset = ADCee::read(currentPin);
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DIAG(F("Track %c sensOffset=%d"),trackLetter,senseOffset);
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}
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IODevice::write(powerPin,invertPower ? LOW : HIGH);
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if (isProgTrack)
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DCCWaveform::progTrack.clearResets();
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}
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else {
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IODevice::write(powerPin,invertPower ? HIGH : LOW);
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}
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powerMode=mode;
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}
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// setBrake applies brake if on == true. So to get
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// voltage from the motor bride one needs to do a
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// setBrake(false).
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// If the brakePin is negative that means the sense
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// of the brake pin on the motor bridge is inverted
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// (HIGH == release brake) and setBrake does
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// compensate for that.
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//
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void MotorDriver::setBrake(bool on, bool interruptContext) {
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if (brakePin == UNUSED_PIN) return;
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if (!interruptContext) {noInterrupts();}
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if (on ^ invertBrake)
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setHIGH(fastBrakePin);
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else
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setLOW(fastBrakePin);
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if (!interruptContext) {interrupts();}
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}
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bool MotorDriver::canMeasureCurrent() {
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return currentPin!=UNUSED_PIN;
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}
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/*
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* Return the current reading as pin reading 0 to max resolution (1024 or 4096).
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* If the fault pin is activated return a negative current to show active fault pin.
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* As there is no -0, cheat a little and return -1 in that case.
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*
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* senseOffset handles the case where a shield returns values above or below
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* a central value depending on direction.
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*
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* Bool fromISR should be adjusted dependent how function is called
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*/
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int MotorDriver::getCurrentRaw(bool fromISR) {
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(void)fromISR;
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if (currentPin==UNUSED_PIN) return 0;
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int current;
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current = ADCee::read(currentPin, fromISR);
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// here one can diag raw value
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// if (fromISR == false) DIAG(F("%c: %d"), trackLetter, current);
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current = current-senseOffset; // adjust with offset
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if (current<0) current=0-current;
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// current >= 0 here, we use negative current as fault pin flag
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if ((faultPin != UNUSED_PIN) && powerPin) {
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if (invertFault ? isHIGH(fastFaultPin) : isLOW(fastFaultPin))
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return (current == 0 ? -1 : -current);
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}
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return current;
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}
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#ifdef ANALOG_READ_INTERRUPT
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/*
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* This should only be called in interrupt context
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* Copies current value from HW to cached value in
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* Motordriver.
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*/
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#pragma GCC push_options
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#pragma GCC optimize ("-O3")
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bool MotorDriver::sampleCurrentFromHW() {
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byte low, high;
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//if (!bit_is_set(ADCSRA, ADIF))
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if (bit_is_set(ADCSRA, ADSC))
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return false;
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// if ((ADMUX & mask) != (currentPin - A0))
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// return false;
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low = ADCL; //must read low before high
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high = ADCH;
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bitSet(ADCSRA, ADIF);
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sampleCurrent = (high << 8) | low;
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sampleCurrentTimestamp = millis();
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return true;
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}
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void MotorDriver::startCurrentFromHW() {
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#if defined(ARDUINO_AVR_MEGA) || defined(ARDUINO_AVR_MEGA2560)
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const byte mask = 7;
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#else
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const byte mask = 31;
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#endif
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ADMUX=(1<<REFS0)|((currentPin-A0) & mask); //select AVCC as reference and set MUX
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bitSet(ADCSRA,ADSC); // start conversion
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}
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#pragma GCC pop_options
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#endif //ANALOG_READ_INTERRUPT
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#if defined(ARDUINO_ARCH_ESP32) || defined(ARDUINO_ARCH_STM32)
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#ifdef VARIABLE_TONES
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uint16_t taurustones[28] = { 165, 175, 196, 220,
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247, 262, 294, 330,
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349, 392, 440, 494,
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523, 587, 659, 698,
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494, 440, 392, 249,
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330, 284, 262, 247,
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220, 196, 175, 165 };
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#endif
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#endif
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void MotorDriver::setDCSignal(byte speedcode) {
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if (brakePin == UNUSED_PIN)
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return;
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switch(brakePin) {
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#if defined(ARDUINO_AVR_UNO)
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// Not worth doin something here as:
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// If we are on pin 9 or 10 we are on Timer1 and we can not touch Timer1 as that is our DCC source.
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// If we are on pin 5 or 6 we are on Timer 0 ad we can not touch Timer0 as that is millis() etc.
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// We are most likely not on pin 3 or 11 as no known motor shield has that as brake.
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#endif
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#if defined(ARDUINO_AVR_MEGA) || defined(ARDUINO_AVR_MEGA2560)
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case 9:
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case 10:
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// Timer2 (is differnet)
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TCCR2A = (TCCR2A & B11111100) | B00000001; // set WGM1=0 and WGM0=1 phase correct PWM
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TCCR2B = (TCCR2B & B11110000) | B00000110; // set WGM2=0 ; set divisor on timer 2 to 1/256 for 122.55Hz
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//DIAG(F("2 A=%x B=%x"), TCCR2A, TCCR2B);
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break;
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case 6:
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case 7:
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case 8:
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// Timer4
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TCCR4A = (TCCR4A & B11111100) | B00000001; // set WGM0=1 and WGM1=0 for normal PWM 8-bit
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TCCR4B = (TCCR4B & B11100000) | B00000100; // set WGM2=0 and WGM3=0 for normal PWM 8 bit and div 1/256 for 122.55Hz
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break;
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case 46:
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case 45:
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case 44:
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// Timer5
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TCCR5A = (TCCR5A & B11111100) | B00000001; // set WGM0=1 and WGM1=0 for normal PWM 8-bit
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TCCR5B = (TCCR5B & B11100000) | B00000100; // set WGM2=0 and WGM3=0 for normal PWM 8 bit and div 1/256 for 122.55Hz
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break;
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#endif
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default:
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break;
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}
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// spedcoode is a dcc speed & direction
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byte tSpeed=speedcode & 0x7F; // DCC Speed with 0,1 stop and speed steps 2 to 127
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byte tDir=speedcode & 0x80;
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byte brake;
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#if defined(ARDUINO_ARCH_ESP32) || defined(ARDUINO_ARCH_STM32)
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{
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int f = 131;
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#ifdef VARIABLE_TONES
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if (tSpeed > 2) {
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if (tSpeed <= 58) {
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f = taurustones[ (tSpeed-2)/2 ] ;
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}
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}
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#endif
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DCCTimer::DCCEXanalogWriteFrequency(brakePin, f); // set DC PWM frequency to 100Hz XXX May move to setup
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}
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#endif
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if (tSpeed <= 1) brake = 255;
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else if (tSpeed >= 127) brake = 0;
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else brake = 2 * (128-tSpeed);
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if (invertBrake)
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brake=255-brake;
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#if defined(ARDUINO_ARCH_ESP32) || defined(ARDUINO_ARCH_STM32)
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DCCTimer::DCCEXanalogWrite(brakePin,brake);
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#else
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analogWrite(brakePin,brake);
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#endif
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//DIAG(F("DCSignal %d"), speedcode);
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if (HAVE_PORTA(fastSignalPin.shadowinout == &PORTA)) {
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noInterrupts();
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HAVE_PORTA(shadowPORTA=PORTA);
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setSignal(tDir);
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HAVE_PORTA(PORTA=shadowPORTA);
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interrupts();
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} else if (HAVE_PORTB(fastSignalPin.shadowinout == &PORTB)) {
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noInterrupts();
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HAVE_PORTB(shadowPORTB=PORTB);
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setSignal(tDir);
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HAVE_PORTB(PORTB=shadowPORTB);
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interrupts();
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} else if (HAVE_PORTC(fastSignalPin.shadowinout == &PORTC)) {
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noInterrupts();
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HAVE_PORTC(shadowPORTC=PORTC);
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setSignal(tDir);
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HAVE_PORTC(PORTC=shadowPORTC);
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interrupts();
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} else if (HAVE_PORTD(fastSignalPin.shadowinout == &PORTD)) {
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noInterrupts();
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HAVE_PORTD(shadowPORTD=PORTD);
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setSignal(tDir);
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HAVE_PORTD(PORTD=shadowPORTD);
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interrupts();
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} else if (HAVE_PORTE(fastSignalPin.shadowinout == &PORTE)) {
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noInterrupts();
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HAVE_PORTE(shadowPORTE=PORTE);
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setSignal(tDir);
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HAVE_PORTE(PORTE=shadowPORTE);
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interrupts();
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} else if (HAVE_PORTF(fastSignalPin.shadowinout == &PORTF)) {
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noInterrupts();
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HAVE_PORTF(shadowPORTF=PORTF);
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setSignal(tDir);
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HAVE_PORTF(PORTF=shadowPORTF);
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interrupts();
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} else {
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noInterrupts();
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setSignal(tDir);
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interrupts();
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}
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}
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void MotorDriver::throttleInrush(bool on) {
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if (brakePin == UNUSED_PIN)
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return;
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if ( !(trackMode & (TRACK_MODE_MAIN | TRACK_MODE_PROG | TRACK_MODE_EXT)))
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return;
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byte duty = on ? 208 : 0;
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if (invertBrake)
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duty = 255-duty;
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#if defined(ARDUINO_ARCH_ESP32)
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if(on) {
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DCCTimer::DCCEXanalogWrite(brakePin,duty);
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DCCTimer::DCCEXanalogWriteFrequency(brakePin, 62500);
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} else {
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ledcDetachPin(brakePin);
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|
}
|
|
#elif defined(ARDUINO_ARCH_STM32)
|
|
if(on) {
|
|
DCCTimer::DCCEXanalogWriteFrequency(brakePin, 62500);
|
|
DCCTimer::DCCEXanalogWrite(brakePin,duty);
|
|
} else {
|
|
pinMode(brakePin, OUTPUT);
|
|
}
|
|
#else
|
|
if(on){
|
|
switch(brakePin) {
|
|
#if defined(ARDUINO_AVR_UNO)
|
|
// Not worth doin something here as:
|
|
// If we are on pin 9 or 10 we are on Timer1 and we can not touch Timer1 as that is our DCC source.
|
|
// If we are on pin 5 or 6 we are on Timer 0 ad we can not touch Timer0 as that is millis() etc.
|
|
// We are most likely not on pin 3 or 11 as no known motor shield has that as brake.
|
|
#endif
|
|
#if defined(ARDUINO_AVR_MEGA) || defined(ARDUINO_AVR_MEGA2560)
|
|
case 9:
|
|
case 10:
|
|
// Timer2 (is different)
|
|
TCCR2A = (TCCR2A & B11111100) | B00000011; // set WGM0=1 and WGM1=1 for fast PWM
|
|
TCCR2B = (TCCR2B & B11110000) | B00000001; // set WGM2=0 and prescaler div=1 (max)
|
|
DIAG(F("2 A=%x B=%x"), TCCR2A, TCCR2B);
|
|
break;
|
|
case 6:
|
|
case 7:
|
|
case 8:
|
|
// Timer4
|
|
TCCR4A = (TCCR4A & B11111100) | B00000001; // set WGM0=1 and WGM1=0 for fast PWM 8-bit
|
|
TCCR4B = (TCCR4B & B11100000) | B00001001; // set WGM2=1 and WGM3=0 for fast PWM 8 bit and div=1 (max)
|
|
break;
|
|
case 46:
|
|
case 45:
|
|
case 44:
|
|
// Timer5
|
|
TCCR5A = (TCCR5A & B11111100) | B00000001; // set WGM0=1 and WGM1=0 for fast PWM 8-bit
|
|
TCCR5B = (TCCR5B & B11100000) | B00001001; // set WGM2=1 and WGM3=0 for fast PWM 8 bit and div=1 (max)
|
|
break;
|
|
#endif
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
analogWrite(brakePin,duty);
|
|
#endif
|
|
}
|
|
unsigned int MotorDriver::raw2mA( int raw) {
|
|
//DIAG(F("%d = %d * %d / %d"), (int32_t)raw * senseFactorInternal / senseScale, raw, senseFactorInternal, senseScale);
|
|
return (int32_t)raw * senseFactorInternal / senseScale;
|
|
}
|
|
unsigned int MotorDriver::mA2raw( unsigned int mA) {
|
|
//DIAG(F("%d = %d * %d / %d"), (int32_t)mA * senseScale / senseFactorInternal, mA, senseScale, senseFactorInternal);
|
|
return (int32_t)mA * senseScale / senseFactorInternal;
|
|
}
|
|
|
|
|
|
void MotorDriver::getFastPin(const FSH* type,int pin, bool input, FASTPIN & result) {
|
|
// DIAG(F("MotorDriver %S Pin=%d,"),type,pin);
|
|
(void) type; // avoid compiler warning if diag not used above.
|
|
#if defined(ARDUINO_GIGA)
|
|
(void)type;
|
|
(void)input; // no warnings please
|
|
*result = digitalPinToGpio(pin);
|
|
#else
|
|
#if defined(ARDUINO_ARCH_SAMD)
|
|
PortGroup *port = digitalPinToPort(pin);
|
|
#elif defined(ARDUINO_ARCH_STM32)
|
|
GPIO_TypeDef *port = digitalPinToPort(pin);
|
|
#else
|
|
uint8_t port = digitalPinToPort(pin);
|
|
#endif
|
|
if (input)
|
|
result.inout = portInputRegister(port);
|
|
else
|
|
result.inout = portOutputRegister(port);
|
|
result.maskHIGH = digitalPinToBitMask(pin);
|
|
result.maskLOW = ~result.maskHIGH;
|
|
#endif
|
|
// DIAG(F(" port=0x%x, inoutpin=0x%x, isinput=%d, mask=0x%x"),port, result.inout,input,result.maskHIGH);
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////////////////
|
|
// checkPowerOverload(useProgLimit, trackno)
|
|
// bool useProgLimit: Trackmanager knows if this track is in prog mode or in main mode
|
|
// byte trackno: trackmanager knows it's number (could be skipped?)
|
|
//
|
|
// Short ciruit handling strategy:
|
|
//
|
|
// There are the following power states: ON ALERT OVERLOAD OFF
|
|
// OFF state is only changed to/from manually. Power is on
|
|
// during ON and ALERT. Power is off during OVERLOAD and OFF.
|
|
// The overload mechanism changes between the other states like
|
|
//
|
|
// ON -1-> ALERT -2-> OVERLOAD -3-> ALERT -4-> ON
|
|
// or
|
|
// ON -1-> ALERT -4-> ON
|
|
//
|
|
// Times are in class MotorDriver (MotorDriver.h).
|
|
//
|
|
// 1. ON to ALERT:
|
|
// Transition on fault pin condition or current overload
|
|
//
|
|
// 2. ALERT to OVERLOAD:
|
|
// Transition happens if different timeouts have elapsed.
|
|
// If only the fault pin is active, timeout is
|
|
// POWER_SAMPLE_IGNORE_FAULT_LOW (100ms)
|
|
// If only overcurrent is detected, timeout is
|
|
// POWER_SAMPLE_IGNORE_CURRENT (100ms)
|
|
// If fault pin and overcurrent are active, timeout is
|
|
// POWER_SAMPLE_IGNORE_FAULT_HIGH (5ms)
|
|
// Transition to OVERLOAD turns off power to the affected
|
|
// output (unless fault pins are shared)
|
|
// If the transition conditions are not fullfilled,
|
|
// transition according to 4 is tested.
|
|
//
|
|
// 3. OVERLOAD to ALERT
|
|
// Transiton happens when timeout has elapsed, timeout
|
|
// is named power_sample_overload_wait. It is started
|
|
// at POWER_SAMPLE_OVERLOAD_WAIT (40ms) at first entry
|
|
// to OVERLOAD and then increased by a factor of 2
|
|
// at further entries to the OVERLOAD condition. This
|
|
// happens until POWER_SAMPLE_RETRY_MAX (10sec) is reached.
|
|
// power_sample_overload_wait is reset by a poweroff or
|
|
// a POWER_SAMPLE_ALL_GOOD (5sec) period during ON.
|
|
// After timeout power is turned on again and state
|
|
// goes back to ALERT.
|
|
//
|
|
// 4. ALERT to ON
|
|
// Transition happens by watching the current and fault pin
|
|
// samples during POWER_SAMPLE_ALERT_GOOD (20ms) time. If
|
|
// values have been good during that time, transition is
|
|
// made back to ON. Note that even if state is back to ON,
|
|
// the power_sample_overload_wait time is first reset
|
|
// later (see above).
|
|
//
|
|
// The time keeping is handled by timestamps lastPowerChange[]
|
|
// which are set by each power change and by lastBadSample which
|
|
// keeps track if conditions during ALERT have been good enough
|
|
// to go back to ON. The time differences are calculated by
|
|
// microsSinceLastPowerChange().
|
|
//
|
|
|
|
void MotorDriver::checkPowerOverload(bool useProgLimit, byte trackno) {
|
|
|
|
switch (powerMode) {
|
|
|
|
case POWERMODE::OFF: {
|
|
lastPowerMode = POWERMODE::OFF;
|
|
power_sample_overload_wait = POWER_SAMPLE_OVERLOAD_WAIT;
|
|
break;
|
|
}
|
|
|
|
case POWERMODE::ON: {
|
|
lastPowerMode = POWERMODE::ON;
|
|
bool cF = checkFault();
|
|
bool cC = checkCurrent(useProgLimit);
|
|
if(cF || cC ) {
|
|
if (cC) {
|
|
unsigned int mA=raw2mA(lastCurrent);
|
|
DIAG(F("TRACK %c ALERT %s %dmA"), trackno + 'A',
|
|
cF ? "FAULT" : "",
|
|
mA);
|
|
} else {
|
|
DIAG(F("TRACK %c ALERT FAULT"), trackno + 'A');
|
|
}
|
|
setPower(POWERMODE::ALERT);
|
|
break;
|
|
}
|
|
// all well
|
|
if (microsSinceLastPowerChange(POWERMODE::ON) > POWER_SAMPLE_ALL_GOOD) {
|
|
power_sample_overload_wait = POWER_SAMPLE_OVERLOAD_WAIT;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case POWERMODE::ALERT: {
|
|
// set local flags that handle how much is output to diag (do not output duplicates)
|
|
bool notFromOverload = (lastPowerMode != POWERMODE::OVERLOAD);
|
|
bool powerModeChange = (powerMode != lastPowerMode);
|
|
unsigned long now = micros();
|
|
if (powerModeChange)
|
|
lastBadSample = now;
|
|
lastPowerMode = POWERMODE::ALERT;
|
|
// check how long we have been in this state
|
|
unsigned long mslpc = microsSinceLastPowerChange(POWERMODE::ALERT);
|
|
if(checkFault()) {
|
|
throttleInrush(true);
|
|
lastBadSample = now;
|
|
unsigned long timeout = checkCurrent(useProgLimit) ? POWER_SAMPLE_IGNORE_FAULT_HIGH : POWER_SAMPLE_IGNORE_FAULT_LOW;
|
|
if ( mslpc < timeout) {
|
|
if (powerModeChange)
|
|
DIAG(F("TRACK %c FAULT PIN (%M ignore)"), trackno + 'A', timeout);
|
|
break;
|
|
}
|
|
DIAG(F("TRACK %c FAULT PIN detected after %4M. Pause %4M)"), trackno + 'A', mslpc, power_sample_overload_wait);
|
|
throttleInrush(false);
|
|
setPower(POWERMODE::OVERLOAD);
|
|
break;
|
|
}
|
|
if (checkCurrent(useProgLimit)) {
|
|
lastBadSample = now;
|
|
if (mslpc < POWER_SAMPLE_IGNORE_CURRENT) {
|
|
if (powerModeChange) {
|
|
unsigned int mA=raw2mA(lastCurrent);
|
|
DIAG(F("TRACK %c CURRENT (%M ignore) %dmA"), trackno + 'A', POWER_SAMPLE_IGNORE_CURRENT, mA);
|
|
}
|
|
break;
|
|
}
|
|
unsigned int mA=raw2mA(lastCurrent);
|
|
unsigned int maxmA=raw2mA(tripValue);
|
|
DIAG(F("TRACK %c POWER OVERLOAD %4dmA (max %4dmA) detected after %4M. Pause %4M"),
|
|
trackno + 'A', mA, maxmA, mslpc, power_sample_overload_wait);
|
|
throttleInrush(false);
|
|
setPower(POWERMODE::OVERLOAD);
|
|
break;
|
|
}
|
|
// all well
|
|
unsigned long goodtime = micros() - lastBadSample;
|
|
if (goodtime > POWER_SAMPLE_ALERT_GOOD) {
|
|
if (true || notFromOverload) { // we did a RESTORE message XXX
|
|
unsigned int mA=raw2mA(lastCurrent);
|
|
DIAG(F("TRACK %c NORMAL (after %M/%M) %dmA"), trackno + 'A', goodtime, mslpc, mA);
|
|
}
|
|
throttleInrush(false);
|
|
setPower(POWERMODE::ON);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case POWERMODE::OVERLOAD: {
|
|
lastPowerMode = POWERMODE::OVERLOAD;
|
|
unsigned long mslpc = (commonFaultPin ? (micros() - globalOverloadStart) : microsSinceLastPowerChange(POWERMODE::OVERLOAD));
|
|
if (mslpc > power_sample_overload_wait) {
|
|
// adjust next wait time
|
|
power_sample_overload_wait *= 2;
|
|
if (power_sample_overload_wait > POWER_SAMPLE_RETRY_MAX)
|
|
power_sample_overload_wait = POWER_SAMPLE_RETRY_MAX;
|
|
DIAG(F("Calling EXRAIL"));
|
|
RMFT2::powerEvent(trackno, true); // Tell EXRAIL we have an overload
|
|
// power on test
|
|
DIAG(F("TRACK %c POWER RESTORE (after %4M)"), trackno + 'A', mslpc);
|
|
setPower(POWERMODE::ALERT);
|
|
}
|
|
break;
|
|
}
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|