681b362811
Corrected bug: ESP32 version stops working when loosing interupts or signal is bad (#48) bumped version to 2.0.7
124 lines
3.9 KiB
C++
124 lines
3.9 KiB
C++
#include <NmraDcc.h>
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// This Example shows how to use the library with the Iowa Scaled Engineering ARD-DCCSHIELD
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// You can find out more about this DCC Interface here: http://www.iascaled.com/store/ARD-DCCSHIELD
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//
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// For more information refer to the file: README.md here: https://github.com/IowaScaledEngineering/ard-dccshield
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//
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// This demo assumes the following Jumper settings on the ARD-DCCSHIELD
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//
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// JP1 - I2C Pull-Up Resistors - Don't Care
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// JP2 - (Pins 1-2) I2C /IORST JP2 - Don't-Care
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// JP2 - (Pins 3-4) - DCC Signal to Arduino Pin - OFF
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// JP3 - I2C /INT and /OE - Don't-Care
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// JP4 - DCC Signal to Arduino Pin - D2 ON
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// JP5 - Arduino Powered from DCC - User Choice
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// JP6 - Boards without VIO - User Choice
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// JP7 - Enable Programming ACK - 1-2 ON 3-4 ON
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//
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// It is a very basic DCC Accessory Decoder that does nothing except allow CV Read/Write and
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// you can also print every DCC packet by uncommenting the "#define NOTIFY_DCC_MSG" line below
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#define NOTIFY_DCC_MSG
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// You can also print other Debug Messages uncommenting the line below
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#define DEBUG_MSG
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// Un-Comment the line below to Enable DCC ACK for Service Mode Programming Read CV Capablilty
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#define ENABLE_DCC_ACK 15 // This is A1 on the Iowa Scaled Engineering ARD-DCCSHIELD DCC Shield
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NmraDcc Dcc ;
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struct CVPair
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{
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uint16_t CV;
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uint8_t Value;
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};
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CVPair FactoryDefaultCVs [] =
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{
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{CV_ACCESSORY_DECODER_ADDRESS_LSB, DEFAULT_ACCESSORY_DECODER_ADDRESS & 0xFF},
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{CV_ACCESSORY_DECODER_ADDRESS_MSB, DEFAULT_ACCESSORY_DECODER_ADDRESS >> 8},
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};
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uint8_t FactoryDefaultCVIndex = 0;
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void notifyCVResetFactoryDefault()
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{
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#ifdef DEBUG_MSG
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Serial.println("notifyCVResetFactoryDefault: Settings CVs to Factory Defaults") ;
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#endif // Make FactoryDefaultCVIndex non-zero and equal to num CV's to be reset
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// to flag to the loop() function that a reset to Factory Defaults needs to be done
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FactoryDefaultCVIndex = sizeof(FactoryDefaultCVs)/sizeof(CVPair);
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};
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// This function is called by the NmraDcc library when a DCC ACK needs to be sent
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// Calling this function should cause an increased 60ma current drain on the power supply for 6ms to ACK a CV Read
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#ifdef ENABLE_DCC_ACK
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void notifyCVAck(void)
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{
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#ifdef DEBUG_MSG
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Serial.println("notifyCVAck") ;
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#endif
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// Configure the DCC CV Programing ACK pin for an output
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pinMode( ENABLE_DCC_ACK, OUTPUT );
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// Generate the DCC ACK 60mA pulse
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digitalWrite( ENABLE_DCC_ACK, HIGH );
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delay( 10 ); // The DCC Spec says 6ms but 10 makes sure... ;)
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digitalWrite( ENABLE_DCC_ACK, LOW );
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}
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#endif
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#ifdef NOTIFY_DCC_MSG
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void notifyDccMsg( DCC_MSG * Msg)
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{
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Serial.print("notifyDccMsg: ") ;
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for(uint8_t i = 0; i < Msg->Size; i++)
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{
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Serial.print(Msg->Data[i], HEX);
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Serial.write(' ');
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}
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Serial.println();
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}
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#endif
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void notifyCVChange(uint16_t CV, uint8_t Value)
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{
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#ifdef DEBUG_MSG
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Serial.print("notifyCVChange: CV: ") ;
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Serial.print(CV,DEC) ;
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Serial.print(" Value: ") ;
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Serial.println(Value, DEC) ;
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#else
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Value = Value; // Silence Compiler Warnings...
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CV = CV;
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#endif
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}
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void setup()
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{
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Serial.begin(115200);
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Serial.println("NMRA DCC Iowa Scaled Engineering ARD-DCCSHIELD Example");
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// Setup which External Interrupt, the Pin it's associated with that we're using and enable the Pull-Up
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Dcc.pin(0, 2, 1);
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// Call the main DCC Init function to enable the DCC Receiver
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Dcc.init( MAN_ID_DIY, 10, CV29_ACCESSORY_DECODER, 0 );
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Serial.println("Init Done");
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}
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void loop()
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{
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// You MUST call the NmraDcc.process() method frequently from the Arduino loop() function for correct library operation
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Dcc.process();
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if( FactoryDefaultCVIndex && Dcc.isSetCVReady())
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{
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FactoryDefaultCVIndex--; // Decrement first as initially it is the size of the array
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Dcc.setCV( FactoryDefaultCVs[FactoryDefaultCVIndex].CV, FactoryDefaultCVs[FactoryDefaultCVIndex].Value);
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}
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}
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