CommandDistributor.cpp

@@ -209,9 +209,7 @@ int16_t CommandDistributor::retClockTime() {
 
 void  CommandDistributor::broadcastLoco(byte slot) {
   DCC::LOCO * sp=&DCC::speedTable[slot];
-  uint32_t func = sp->functions;
-  func = func & 0x1fffffff; // mask out bits 0-28
-  broadcastReply(COMMAND_TYPE, F("<l %d %d %d %l>\n"), sp->loco,slot,sp->speedCode,func);
+  broadcastReply(COMMAND_TYPE, F("<l %d %d %d %l>\n"), sp->loco,slot,sp->speedCode,sp->functions);
 #ifdef SABERTOOTH
   if (Serial2 && sp->loco == SABERTOOTH) {
     static uint8_t rampingmode = 0;

DCC.cpp

@@ -153,22 +153,6 @@ uint8_t DCC::getThrottleSpeedByte(int cab) {
   return speedTable[reg].speedCode;
 }
 
-// returns 0 to 7 for frequency
-uint8_t DCC::getThrottleFrequency(int cab) {
-#if defined(ARDUINO_AVR_UNO)
-  (void)cab;
-  return 0;
-#else
-  int reg=lookupSpeedTable(cab);
-  if (reg<0)
-    return 0; // use default frequency
-  // shift out first 29 bits so we have the 3 "frequency bits" left
-  uint8_t res = (uint8_t)(speedTable[reg].functions >>29);
-  //DIAG(F("Speed table %d functions %l shifted %d"), reg, speedTable[reg].functions, res);
-  return res;
-#endif
-}
-
 // returns direction on loco
 // or true/forward on "loco not found"
 bool DCC::getThrottleDirection(int cab) {
@@ -199,54 +183,43 @@ bool DCC::setFn( int cab, int16_t functionNumber, bool on) {
        b[nB++] = functionNumber >>7 ;  // high order bits
     }
     DCCWaveform::mainTrack.schedulePacket(b, nB, 4);
-  }
-  // We use the reminder table up to 28 for normal functions.
-  // We use 29 to 31 for DC frequency as well so up to 28
-  // are "real" functions and 29 to 31 are frequency bits
-  // controlled by function buttons
-  if (functionNumber > 31)
     return true;
+  }
 
   int reg = lookupSpeedTable(cab);
   if (reg<0) return false;
 
   // Take care of functions:
   // Set state of function
-  uint32_t previous=speedTable[reg].functions;
-  uint32_t funcmask = (1UL<<functionNumber);
+  unsigned long previous=speedTable[reg].functions;
+  unsigned long funcmask = (1UL<<functionNumber);
   if (on) {
       speedTable[reg].functions |= funcmask;
   } else {
       speedTable[reg].functions &= ~funcmask;
   }
-  if (speedTable[reg].functions != previous && functionNumber <= 28) {
+  if (speedTable[reg].functions != previous) {
     updateGroupflags(speedTable[reg].groupFlags, functionNumber);
     CommandDistributor::broadcastLoco(reg);
   }
   return true;
 }
 
-// Flip function state (used from withrottle protocol)
+// Flip function state
 void DCC::changeFn( int cab, int16_t functionNumber) {
-  if (cab<=0 || functionNumber>31) return;
+  if (cab<=0 || functionNumber>28) return;
   int reg = lookupSpeedTable(cab);
   if (reg<0) return;
   unsigned long funcmask = (1UL<<functionNumber);
   speedTable[reg].functions ^= funcmask;
-  if (functionNumber <= 28) {
   updateGroupflags(speedTable[reg].groupFlags, functionNumber);
   CommandDistributor::broadcastLoco(reg);
 }
-}
 
-// Report function state (used from withrottle protocol)
-// returns 0 false, 1 true or -1 for do not know
-int8_t DCC::getFn( int cab, int16_t functionNumber) {
-  if (cab<=0 || functionNumber>28)
-    return -1;  // unknown
+int DCC::getFn( int cab, int16_t functionNumber) {
+  if (cab<=0 || functionNumber>28) return -1;  // unknown
   int reg = lookupSpeedTable(cab);
-  if (reg<0)
-    return -1;
+  if (reg<0) return -1;
 
   unsigned long funcmask = (1UL<<functionNumber);
   return  (speedTable[reg].functions & funcmask)? 1 : 0;

DCC.h

@@ -61,14 +61,13 @@ public:
   static void setThrottle(uint16_t cab, uint8_t tSpeed, bool tDirection);
   static int8_t getThrottleSpeed(int cab);
   static uint8_t getThrottleSpeedByte(int cab);
-  static uint8_t getThrottleFrequency(int cab);
   static bool getThrottleDirection(int cab);
   static void writeCVByteMain(int cab, int cv, byte bValue);
   static void writeCVBitMain(int cab, int cv, byte bNum, bool bValue);
   static void setFunction(int cab, byte fByte, byte eByte);
   static bool setFn(int cab, int16_t functionNumber, bool on);
   static void changeFn(int cab, int16_t functionNumber);
-  static int8_t getFn(int cab, int16_t functionNumber);
+  static int  getFn(int cab, int16_t functionNumber);
   static uint32_t getFunctionMap(int cab);
   static void updateGroupflags(byte &flags, int16_t functionNumber);
   static void setAccessory(int address, byte port, bool gate, byte onoff = 2);
@@ -100,7 +99,7 @@ public:
     int loco;
     byte speedCode;
     byte groupFlags;
-    uint32_t functions;
+    unsigned long functions;
   };
  static LOCO speedTable[MAX_LOCOS];
  static int lookupSpeedTable(int locoId, bool autoCreate=true);

DCCEXParser.cpp

@@ -582,13 +582,12 @@ void DCCEXParser::parseOne(Print *stream, byte *com, RingStream * ringStream)
         DCC::setThrottle(0,1,1); // this broadcasts speed 1(estop) and sets all reminders to speed 1.
         return;
 
-#ifdef HAS_ENOUGH_MEMORY
     case 'c': // SEND METER RESPONSES <c>
         // No longer useful because of multiple tracks See <JG> and <JI>
         if (params>0) break;
         TrackManager::reportObsoleteCurrent(stream);
         return;
-#endif
+
     case 'Q': // SENSORS <Q>
         Sensor::printAll(stream);
         return;

DCCTimer.h

@@ -87,7 +87,6 @@ class DCCTimer {
   static void reset();
   
 private:
-  static void DCCEXanalogWriteFrequencyInternal(uint8_t pin, uint32_t frequency);
   static int freeMemory();
   static volatile int minimum_free_memory;
   static const int DCC_SIGNAL_TIME=58;  // this is the 58uS DCC 1-bit waveform half-cycle 

DCCTimerAVR.cpp

@@ -29,7 +29,6 @@
 #include <avr/boot.h> 
 #include <avr/wdt.h>
 #include "DCCTimer.h"
-#include "DIAG.h"
 #ifdef DEBUG_ADC
 #include "TrackManager.h"
 #endif
@@ -190,81 +189,6 @@ void DCCTimer::reset() {
 
 }
 
-void DCCTimer::DCCEXanalogWriteFrequency(uint8_t pin, uint32_t f) {
-  DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, f);
-}
-void DCCTimer::DCCEXanalogWriteFrequencyInternal(uint8_t pin, uint32_t fbits) {
-#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)
-  // Speed mapping is done like this:
-  // No functions buttons:   000  0   -> low          131Hz
-  // Only F29 pressed        001  1   -> mid          490Hz
-  // F30 with or w/o F29     01x  2-3 -> high        3400Hz
-  // F31 with or w/o F29/30  1xx  4-7 -> supersonic 62500Hz
-  uint8_t abits;
-  uint8_t bbits;
-  if (pin == 9 || pin == 10) { // timer 2 is different
-
-    if (fbits >= 4)
-      abits = B00000011;
-    else
-      abits = B00000001;
-
-    if (fbits >= 4)
-      bbits = B0001;
-    else if (fbits >= 2)
-      bbits = B0010;
-    else if (fbits == 1)
-      bbits = B0100;
-    else //  fbits == 0
-      bbits = B0110;
-
-    TCCR2A = (TCCR2A & B11111100) | abits; // set WGM0 and WGM1
-    TCCR2B = (TCCR2B & B11110000) | bbits; // set WGM2 and 3 bits of prescaler
-    DIAG(F("Timer 2 A=%x B=%x"), TCCR2A, TCCR2B);
-
-  } else { // not timer 9 or 10
-    abits = B01;
-
-    if (fbits >= 4)
-      bbits = B1001;
-    else if (fbits >= 2)
-      bbits = B0010;
-    else if (fbits == 1)
-      bbits = B0011;
-    else
-      bbits = B0100;
-
-    switch (pin) {
-      // case 9 and 10 taken care of above by if()
-    case 6:
-    case 7:
-    case 8:
-      // Timer4
-      TCCR4A = (TCCR4A & B11111100) | abits; // set WGM0 and WGM1
-      TCCR4B = (TCCR4B & B11100000) | bbits; // set WGM2 and WGM3 and divisor
-      //DIAG(F("Timer 4 A=%x B=%x"), TCCR4A, TCCR4B);
-      break;
-    case 46:
-    case 45:
-    case 44:
-      // Timer5
-      TCCR5A = (TCCR5A & B11111100) | abits; // set WGM0 and WGM1
-      TCCR5B = (TCCR5B & B11100000) | bbits; // set WGM2 and WGM3 and divisor
-      //DIAG(F("Timer 5 A=%x B=%x"), TCCR5A, TCCR5B);
-      break;
-    default:
-      break;
-    }
-  }
-#endif
-}
-
 #if defined(ARDUINO_AVR_MEGA) || defined(ARDUINO_AVR_MEGA2560)
 #define NUM_ADC_INPUTS 16
 #else

DCCTimerESP.cpp

@@ -151,26 +151,10 @@ void DCCTimer::reset() {
    ESP.restart();
 }
 
-void DCCTimer::DCCEXanalogWriteFrequency(uint8_t pin, uint32_t f) {
-  if (f >= 16)
-    DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, f);
-  else if (f == 7)
-    DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, 62500);
-  else if (f >= 4)
-    DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, 32000);
-  else if (f >= 3)
-    DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, 16000);
-  else if (f >= 2)
-    DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, 3400);
-  else if (f == 1)
-    DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, 480);
-  else
-    DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, 131);
-}
-
 #include "esp32-hal.h"
 #include "soc/soc_caps.h"
 
+
 #ifdef SOC_LEDC_SUPPORT_HS_MODE
 #define LEDC_CHANNELS           (SOC_LEDC_CHANNEL_NUM<<1)
 #else
@@ -180,7 +164,7 @@ void DCCTimer::DCCEXanalogWriteFrequency(uint8_t pin, uint32_t f) {
 static int8_t pin_to_channel[SOC_GPIO_PIN_COUNT] = { 0 };
 static int cnt_channel = LEDC_CHANNELS;
 
-void DCCTimer::DCCEXanalogWriteFrequencyInternal(uint8_t pin, uint32_t frequency) {
+void DCCTimer::DCCEXanalogWriteFrequency(uint8_t pin, uint32_t frequency) {
   if (pin < SOC_GPIO_PIN_COUNT) {
     if (pin_to_channel[pin] != 0) {
       ledcSetup(pin_to_channel[pin], frequency, 8);

DCCTimerMEGAAVR.cpp

@@ -134,11 +134,6 @@ void DCCTimer::reset() {
   while(true){}
 }
 
-void DCCTimer::DCCEXanalogWriteFrequency(uint8_t pin, uint32_t f) {
-}
-void DCCTimer::DCCEXanalogWriteFrequencyInternal(uint8_t pin, uint32_t fbits) {
-}
-
 int16_t ADCee::ADCmax() {
   return 4095;
 }

DCCTimerSAMD.cpp

@@ -165,11 +165,6 @@ void DCCTimer::reset() {
     while(true) {};
 }
 
-void DCCTimer::DCCEXanalogWriteFrequency(uint8_t pin, uint32_t f) {
-}
-void DCCTimer::DCCEXanalogWriteFrequencyInternal(uint8_t pin, uint32_t fbits) {
-}
-
 #define NUM_ADC_INPUTS NUM_ANALOG_INPUTS
 
 uint16_t ADCee::usedpins = 0;

DCCTimerSTM32.cpp

@@ -266,23 +266,6 @@ void DCCTimer::reset() {
     while(true) {};
 }
 
-void DCCTimer::DCCEXanalogWriteFrequency(uint8_t pin, uint32_t f) {
-  if (f >= 16)
-    DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, f);
-  else if (f == 7)
-    DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, 62500);
-  else if (f >= 4)
-    DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, 32000);
-  else if (f >= 3)
-    DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, 16000);
-  else if (f >= 2)
-    DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, 3400);
-  else if (f == 1)
-    DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, 480);
-  else
-    DCCTimer::DCCEXanalogWriteFrequencyInternal(pin, 131);
-}
-
 // TODO: rationalise the size of these... could really use sparse arrays etc.
 static HardwareTimer * pin_timer[100] = {0};
 static uint32_t channel_frequency[100] = {0};
@@ -293,7 +276,7 @@ static uint32_t pin_channel[100] = {0};
 // sophisticated about detecting any clash between the timer we'd like to use for PWM and the ones
 // currently used for HA so they don't interfere with one another. For now we'll just make PWM
 // work well... then work backwards to integrate with HA mode if we can.
-void DCCTimer::DCCEXanalogWriteFrequencyInternal(uint8_t pin, uint32_t frequency)
+void DCCTimer::DCCEXanalogWriteFrequency(uint8_t pin, uint32_t frequency)
 {
   if (pin_timer[pin] == NULL) {
     // Automatically retrieve TIM instance and channel associated to pin

DCCTimerTEENSY.cpp

@@ -150,11 +150,6 @@ void DCCTimer::reset() {
   SCB_AIRCR = 0x05FA0004;
 }
 
-void DCCTimer::DCCEXanalogWriteFrequency(uint8_t pin, uint32_t f) {
-}
-void DCCTimer::DCCEXanalogWriteFrequencyInternal(uint8_t pin, uint32_t fbits) {
-}
-
 int16_t ADCee::ADCmax() {
   return 4095;
 }

EXRAIL2.cpp

@@ -669,45 +669,6 @@ void RMFT2::loop2() {
       }
       break; 
 
-  case OPCODE_SETFREQ:
-      // Frequency is default 0, or 1, 2,3
-      //if (loco) DCC::setFn(loco,operand,true);
-      switch (operand) {
-        case 0:  // default - all F-s off
-            if (loco) {
-                DCC::setFn(loco,29,false);
-                DCC::setFn(loco,30,false);
-                DCC::setFn(loco,31,false);
-            }
-        break;
-        case 1:
-            if (loco) {
-	      DCC::setFn(loco,29,true);
-              DCC::setFn(loco,30,false);
-              DCC::setFn(loco,31,false);
-            }
-        break;
-        case 2:
-            if (loco) {
-	      DCC::setFn(loco,29,false);
-              DCC::setFn(loco,30,true);
-              DCC::setFn(loco,31,false);
-            }
-        break;
-        case 3:
-            if (loco) {
-	      DCC::setFn(loco,29,false);
-              DCC::setFn(loco,30,false);
-              DCC::setFn(loco,31,true);
-            }
-        break;
-      default:
-	; // do nothing
-	break;
-      }
-
-      break;
-
   case OPCODE_RESUME:
     pausingTask=NULL;
     driveLoco(speedo);

EXRAIL2.h

@@ -51,7 +51,7 @@ enum OPCODE : byte {OPCODE_THROW,OPCODE_CLOSE,
              OPCODE_JOIN,OPCODE_UNJOIN,OPCODE_READ_LOCO1,OPCODE_READ_LOCO2,
 #endif
              OPCODE_POM,
-             OPCODE_START,OPCODE_SETLOCO,OPCODE_SETFREQ,OPCODE_SENDLOCO,OPCODE_FORGET,
+             OPCODE_START,OPCODE_SETLOCO,OPCODE_SENDLOCO,OPCODE_FORGET,
              OPCODE_PAUSE, OPCODE_RESUME,OPCODE_POWEROFF,OPCODE_POWERON,
              OPCODE_ONCLOSE, OPCODE_ONTHROW, OPCODE_SERVOTURNOUT, OPCODE_PINTURNOUT,
              OPCODE_PRINT,OPCODE_DCCACTIVATE,OPCODE_ASPECT,

EXRAIL2MacroReset.h

@@ -156,7 +156,6 @@
 #undef SET_TRACK
 #undef SET_POWER
 #undef SETLOCO 
-#undef SETFREQ
 #undef SIGNAL 
 #undef SIGNALH 
 #undef SPEED 
@@ -313,7 +312,6 @@
 #define SET_TRACK(track,mode)
 #define SET_POWER(track,onoff)
 #define SETLOCO(loco) 
-#define SETFREQ(loco,freq)
 #define SIGNAL(redpin,amberpin,greenpin) 
 #define SIGNALH(redpin,amberpin,greenpin) 
 #define SPEED(speed) 

EXRAILMacros.h

@@ -581,7 +581,6 @@ int RMFT2::onLCCLookup[RMFT2::countLCCLookup];
 #define SET_TRACK(track,mode)  OPCODE_SET_TRACK,V(TRACK_MODE_##mode  <<8 | TRACK_NUMBER_##track),
 #define SET_POWER(track,onoff) OPCODE_SET_POWER,V(TRACK_POWER_##onoff),OPCODE_PAD, V(TRACK_NUMBER_##track),
 #define SETLOCO(loco) OPCODE_SETLOCO,V(loco),
-#define SETFREQ(loco,freq) OPCODE_SETLOCO,V(loco), OPCODE_SETFREQ,V(freq),
 #define SIGNAL(redpin,amberpin,greenpin) 
 #define SIGNALH(redpin,amberpin,greenpin) 
 #define SPEED(speed) OPCODE_SPEED,V(speed),

GITHUB_SHA.h

@@ -1 +1 @@
-#define GITHUB_SHA "devel-202402201404Z"
+#define GITHUB_SHA "devel-202402171752Z"

MotorDriver.cpp

@@ -325,23 +325,49 @@ uint16_t taurustones[28] = { 165, 175, 196, 220,
 			     220, 196, 175, 165 };
 #endif
 #endif
-void MotorDriver::setDCSignal(byte speedcode, uint8_t frequency /*default =0*/) {
+void MotorDriver::setDCSignal(byte speedcode) {
   if (brakePin == UNUSED_PIN)
     return;
+  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 differnet)
+    TCCR2A = (TCCR2A & B11111100) | B00000001; // set WGM1=0 and WGM0=1 phase correct PWM
+    TCCR2B = (TCCR2B & B11110000) | B00000110; // set WGM2=0 ; set divisor on timer 2 to 1/256 for 122.55Hz
+    //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 normal PWM 8-bit
+    TCCR4B = (TCCR4B & B11100000) | B00000100; // set WGM2=0 and WGM3=0 for normal PWM 8 bit and div 1/256 for 122.55Hz
+    break;
+  case 46:
+  case 45:
+  case 44:
+    // Timer5
+    TCCR5A = (TCCR5A & B11111100) | B00000001; // set WGM0=1 and WGM1=0 for normal PWM 8-bit
+    TCCR5B = (TCCR5B & B11100000) | B00000100; // set WGM2=0 and WGM3=0 for normal PWM 8 bit and div 1/256 for 122.55Hz
+    break;
+#endif
+  default:
+    break;
+  }
   // spedcoode is a dcc speed & direction
   byte tSpeed=speedcode & 0x7F; // DCC Speed with 0,1 stop and speed steps 2 to 127
   byte tDir=speedcode & 0x80;
   byte brake;
-
-  if (tSpeed <= 1) brake = 255;
-  else if (tSpeed >= 127) brake = 0;
-  else  brake = 2 * (128-tSpeed);
-  if (invertBrake)
-    brake=255-brake;
-
-  { // new block because of variable f
 #if defined(ARDUINO_ARCH_ESP32) || defined(ARDUINO_ARCH_STM32)
-    int f = frequency;
+  {
+    int f = 131;
 #ifdef VARIABLE_TONES
     if (tSpeed > 2) {
       if (tSpeed <= 58) {
@@ -349,15 +375,19 @@ void MotorDriver::setDCSignal(byte speedcode, uint8_t frequency /*default =0*/)
       }
     }
 #endif
-    //DIAG(F("Brake pin %d freqency %d"), brakePin, f);
-    DCCTimer::DCCEXanalogWriteFrequency(brakePin, f); // set DC PWM frequency
+    DCCTimer::DCCEXanalogWriteFrequency(brakePin, f); // set DC PWM frequency to 100Hz XXX May move to setup
+  }
+#endif
+  if (tSpeed <= 1) brake = 255;
+  else if (tSpeed >= 127) brake = 0;
+  else  brake = 2 * (128-tSpeed);
+  if (invertBrake)
+    brake=255-brake;
+#if defined(ARDUINO_ARCH_ESP32) || defined(ARDUINO_ARCH_STM32)
   DCCTimer::DCCEXanalogWrite(brakePin,brake);
-#else // all AVR here
-    DCCTimer::DCCEXanalogWriteFrequency(brakePin, frequency); // frequency steps
+#else
   analogWrite(brakePin,brake);
 #endif
-  }
-
   //DIAG(F("DCSignal %d"), speedcode);
   if (HAVE_PORTA(fastSignalPin.shadowinout == &PORTA)) {
     noInterrupts();
@@ -406,26 +436,58 @@ void MotorDriver::throttleInrush(bool on) {
     return;
   if ( !(trackMode & (TRACK_MODE_MAIN | TRACK_MODE_PROG | TRACK_MODE_EXT)))
     return;
-  byte duty = on ? 207 : 0; // duty of 81% at 62500Hz this gives pauses of 3usec
+  byte duty = on ? 208 : 0;
   if (invertBrake)
     duty = 255-duty;
 #if defined(ARDUINO_ARCH_ESP32)
   if(on) {
     DCCTimer::DCCEXanalogWrite(brakePin,duty);
-    DCCTimer::DCCEXanalogWriteFrequency(brakePin, 7); // 7 means max
+    DCCTimer::DCCEXanalogWriteFrequency(brakePin, 62500);
   } else {
     ledcDetachPin(brakePin);
   }
 #elif defined(ARDUINO_ARCH_STM32)
   if(on) {
-    DCCTimer::DCCEXanalogWriteFrequency(brakePin, 7); // 7 means max
+    DCCTimer::DCCEXanalogWriteFrequency(brakePin, 62500);
     DCCTimer::DCCEXanalogWrite(brakePin,duty);
   } else {
     pinMode(brakePin, OUTPUT);
   }
-#else // all AVR here
+#else
   if(on){
-    DCCTimer::DCCEXanalogWriteFrequency(brakePin, 7); // 7 means max
+    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

MotorDriver.h

@@ -187,7 +187,7 @@ class MotorDriver {
       }
     };
     inline pinpair getSignalPin() { return pinpair(signalPin,signalPin2); };
-    void setDCSignal(byte speedByte, uint8_t frequency=0);
+    void setDCSignal(byte speedByte);
     void throttleInrush(bool on);
     inline void detachDCSignal() {
 #if defined(__arm__)

TrackManager.cpp

@@ -19,7 +19,6 @@
  *  You should have received a copy of the GNU General Public License
  *  along with CommandStation.  If not, see <https://www.gnu.org/licenses/>.
  */
-#include "defines.h"
 #include "TrackManager.h"
 #include "FSH.h"
 #include "DCCWaveform.h"
@@ -183,7 +182,7 @@ void TrackManager::setDCSignal(int16_t cab, byte speedbyte) {
   FOR_EACH_TRACK(t) {
     if (trackDCAddr[t]!=cab && cab != 0) continue;
     if (track[t]->getMode() & TRACK_MODE_DC)
-      track[t]->setDCSignal(speedbyte, DCC::getThrottleFrequency(trackDCAddr[t]));
+      track[t]->setDCSignal(speedbyte);
   }
 }    
 
@@ -329,8 +328,8 @@ bool TrackManager::setTrackMode(byte trackToSet, TRACK_MODE mode, int16_t dcAddr
 }
 
 void TrackManager::applyDCSpeed(byte t) {
-  track[t]->setDCSignal(DCC::getThrottleSpeedByte(trackDCAddr[t]),
-			DCC::getThrottleFrequency(trackDCAddr[t]));
+  uint8_t speedByte=DCC::getThrottleSpeedByte(trackDCAddr[t]);
+  track[t]->setDCSignal(speedByte);
 }
 
 bool TrackManager::parseEqualSign(Print *stream, int16_t params, int16_t p[])
@@ -555,17 +554,14 @@ bool TrackManager::getPower(byte t, char s[]) {
   return false;
 }
 
+
 void TrackManager::reportObsoleteCurrent(Print* stream) {
   // This function is for backward JMRI compatibility only
   // It reports the first track only, as main, regardless of track settings.
   //  <c MeterName value C/V unit min max res warn>
-#ifdef HAS_ENOUGH_MEMORY
   int maxCurrent=track[0]->raw2mA(track[0]->getRawCurrentTripValue());
   StringFormatter::send(stream, F("<c CurrentMAIN %d C Milli 0 %d 1 %d>\n"), 
             track[0]->raw2mA(track[0]->getCurrentRaw(false)), maxCurrent, maxCurrent);                  
-#else
-  (void)stream;
-#endif
 }
 
 void TrackManager::reportCurrent(Print* stream) {

Turntables.cpp

@@ -249,7 +249,6 @@ DCCTurntable::DCCTurntable(uint16_t id) : Turntable(id, TURNTABLE_DCC) {}
 
   // EX-Turntable specific code for moving to the specified position
   bool DCCTurntable::setPositionInternal(uint8_t position, uint8_t activity) {
-  (void) activity;
 #ifndef IO_NO_HAL
     int16_t value = getPositionValue(position);
     if (position == 0 || !value) return false; // Return false if it's not a valid position

WiThrottle.cpp

@@ -621,7 +621,7 @@ void WiThrottle::sendFunctions(Print* stream, byte loco) {
 #endif
 	
 	for(int fKey=0; fKey<fkeys; fKey++) { 
-      int8_t fstate=DCC::getFn(locoid,fKey);
+      int fstate=DCC::getFn(locoid,fKey);
       if (fstate>=0) StringFormatter::send(stream,F("M%cA%c%d<;>F%d%d\n"),myLocos[loco].throttle,LorS(locoid),locoid,fstate,fKey);                     
 	}
 }

version.h

@@ -3,8 +3,7 @@
 
 #include "StringFormatter.h"
 
-#define VERSION "5.2.36"
-// 5.2.36 - Variable frequency for DC mode
+#define VERSION "5.2.35"
 // 5.2.35 - Bugfix: Make DCC Extended Accessories follow RCN-213
 // 5.2.34 - <A address aspect> Command fopr DCC Extended Accessories
 //        - Exrail ASPECT(address,aspect) for above.