Merge 2c133da14040d63993a71bd82ded11560255d646 into 2172d2e1754fd9dbe87cf2c8c80a3ddab0bf9185

Commented MAX_LOCOS
Lowered the default Max for Uno CS from 30 to 10

DCC.h

@@ -43,9 +43,9 @@ const uint16_t LONG_ADDR_MARKER = 0x4000;
 // Allocations with memory implications..!
 // Base system takes approx 900 bytes + 8 per loco. Turnouts, Sensors etc are dynamically created
 #if defined(HAS_ENOUGH_MEMORY)
-const byte MAX_LOCOS = 50;
+const byte MAX_LOCOS = 50;  // Default 50 for Mega2560,  Increase for ESP32 and STM32 Nucleo 
-#else
+#else                       // Adjust Max Locos as needed.
-const byte MAX_LOCOS = 30;
+const byte MAX_LOCOS = 10;  // Lower Max Loco for Uno CS, Recommended as a JMRI DecoderPro Programming Station 
 #endif
 
 class DCC

DCCTimerAVR.cpp

@@ -185,8 +185,10 @@ int DCCTimer::freeMemory() {
 }
 
 void DCCTimer::reset() {
-  wdt_enable( WDTO_15MS); // set Arduino watchdog timer for 15ms 
+  // 250ms chosen to circumwent bootloader bug which
-  delay(50);            // wait for the prescaller time to expire
+  // hangs at too short timepout (like 15ms)
+  wdt_enable( WDTO_250MS); // set Arduino watchdog timer for 250ms 
+  delay(500);              // wait for it to happen
 
 }
 

EXRAIL2.cpp

@@ -1145,7 +1145,7 @@ void RMFT2::kill(const FSH * reason, int operand) {
 
 int16_t RMFT2::getSignalSlot(int16_t id) {
 
-  if (id >= 0) {
+  if (id > 0) {
     int sigslot = 0;
     int16_t sighandle = 0;
     // Trundle down the signal list until we reach the end