#ifndef _CPROTOCOL_H_ #define _CPROTOCOL_H_ class CProtocol { public: union { unsigned char Data[24]; struct { unsigned char Byte0; // [0] always 0x76 unsigned char Len; // [1] always 0x16 == 22 unsigned char Command; // [2] transient commands: 00: NOP, 0xa0 START, 0x05: STOP unsigned char ActualTemperature; // [3] 1degC / digit unsigned char DesiredTemperature; // [4] 1degC / digit unsigned char MinPumpFreq; // [5] 0.1Hz/digit unsigned char MaxPumpFreq; // [6] 0.1Hz/digit unsigned char MinFanRPM_MSB; // [7] 16 bit - big endian MSB unsigned char MinFanRPM_LSB; // [8] 16 bit - big endian LSB : 1 RPM / digit unsigned char MaxFanRPM_MSB; // [9] 16 bit - big endian MSB unsigned char MaxFanRPM_LSB; // [10] 16 bit - big endian LSB : 1 RPM / digit unsigned char OperatingVoltage; // [11] 120, 240 : 0.1V/digit unsigned char FanSensor; // [12] SN-1 or SN-2 unsigned char OperatingMode; // [13] 0x32:Thermostat, 0xCD:Fixed unsigned char MinTemperature; // [14] Minimum settable temperature unsigned char MaxTemperature; // [15] Maximum settable temperature unsigned char MinTempRise; // [16] temp rise to sense running OK unsigned char Prime; // [17] 00: normal, 0x5A: fuel prime unsigned char Unknown1_MSB; // [18] always 0x01 unsigned char Unknown1_LSB; // [19] always 0x2c "300 secs = max run without burn detected"? unsigned char Unknown2_MSB; // [20] always 0x0d unsigned char Unknown2_LSB; // [21] always 0xac "3500 ?" unsigned char CRC_MSB; // [22] unsigned char CRC_LSB; // [23] } Controller; struct { unsigned char Byte0; // always 0x76 unsigned char Len; // always 0x16 == 22 bytes unsigned char RunState; // operating state unsigned char ErrState; // 0: OFF, 1: ON, 2+ (E-0n + 1) unsigned char SupplyV_MSB; // 16 bit - big endian MSB unsigned char SupplyV_LSB; // 16 bit - big endian MSB : 0.1V / digit unsigned char FanRPM_MSB; // 16 bit - big endian MSB unsigned char FanRPM_LSB; // 16 bit - big endian LSB : 1 RPM / digit unsigned char FanVoltage_MSB; // 16 bit - big endian MSB unsigned char FanVoltage_LSB; // 16 bit - big endian LSB : 0.1V / digit unsigned char HeatExchgTemp_MSB; // 16 bit - big endian MSB unsigned char HeatExchgTemp_LSB; // 16 bit - big endian LSB : 1 degC / digit unsigned char GlowPlugVoltage_MSB; // 16 bit - big endian MSB unsigned char GlowPlugVoltage_LSB; // 16 bit - big endian LSB : 0.1V / digit unsigned char GlowPlugCurrent_MSB; // 16 bit - big endian MSB unsigned char GlowPlugCurrent_LSB; // 16 bit - big endian LSB : 10mA / digit unsigned char ActualPumpFreq; // fuel pump freq.: 0.1Hz / digit unsigned char StoredErrorCode; // unsigned char Unknown1; // always 0x00 unsigned char FixedPumpFreq; // fixed mode frequency set point: 0.1Hz / digit unsigned char Unknown2; // always 0x64 "100 ?" unsigned char Unknown3; // always 0x00 unsigned char CRC_MSB; unsigned char CRC_LSB; } Heater; }; static const int CtrlMode = 1; static const int HeatMode = 2; const unsigned short wCRCTable[256] = { 0X0000, 0XC0C1, 0XC181, 0X0140, 0XC301, 0X03C0, 0X0280, 0XC241, 0XC601, 0X06C0, 0X0780, 0XC741, 0X0500, 0XC5C1, 0XC481, 0X0440, 0XCC01, 0X0CC0, 0X0D80, 0XCD41, 0X0F00, 0XCFC1, 0XCE81, 0X0E40, 0X0A00, 0XCAC1, 0XCB81, 0X0B40, 0XC901, 0X09C0, 0X0880, 0XC841, 0XD801, 0X18C0, 0X1980, 0XD941, 0X1B00, 0XDBC1, 0XDA81, 0X1A40, 0X1E00, 0XDEC1, 0XDF81, 0X1F40, 0XDD01, 0X1DC0, 0X1C80, 0XDC41, 0X1400, 0XD4C1, 0XD581, 0X1540, 0XD701, 0X17C0, 0X1680, 0XD641, 0XD201, 0X12C0, 0X1380, 0XD341, 0X1100, 0XD1C1, 0XD081, 0X1040, 0XF001, 0X30C0, 0X3180, 0XF141, 0X3300, 0XF3C1, 0XF281, 0X3240, 0X3600, 0XF6C1, 0XF781, 0X3740, 0XF501, 0X35C0, 0X3480, 0XF441, 0X3C00, 0XFCC1, 0XFD81, 0X3D40, 0XFF01, 0X3FC0, 0X3E80, 0XFE41, 0XFA01, 0X3AC0, 0X3B80, 0XFB41, 0X3900, 0XF9C1, 0XF881, 0X3840, 0X2800, 0XE8C1, 0XE981, 0X2940, 0XEB01, 0X2BC0, 0X2A80, 0XEA41, 0XEE01, 0X2EC0, 0X2F80, 0XEF41, 0X2D00, 0XEDC1, 0XEC81, 0X2C40, 0XE401, 0X24C0, 0X2580, 0XE541, 0X2700, 0XE7C1, 0XE681, 0X2640, 0X2200, 0XE2C1, 0XE381, 0X2340, 0XE101, 0X21C0, 0X2080, 0XE041, 0XA001, 0X60C0, 0X6180, 0XA141, 0X6300, 0XA3C1, 0XA281, 0X6240, 0X6600, 0XA6C1, 0XA781, 0X6740, 0XA501, 0X65C0, 0X6480, 0XA441, 0X6C00, 0XACC1, 0XAD81, 0X6D40, 0XAF01, 0X6FC0, 0X6E80, 0XAE41, 0XAA01, 0X6AC0, 0X6B80, 0XAB41, 0X6900, 0XA9C1, 0XA881, 0X6840, 0X7800, 0XB8C1, 0XB981, 0X7940, 0XBB01, 0X7BC0, 0X7A80, 0XBA41, 0XBE01, 0X7EC0, 0X7F80, 0XBF41, 0X7D00, 0XBDC1, 0XBC81, 0X7C40, 0XB401, 0X74C0, 0X7580, 0XB541, 0X7700, 0XB7C1, 0XB681, 0X7640, 0X7200, 0XB2C1, 0XB381, 0X7340, 0XB101, 0X71C0, 0X7080, 0XB041, 0X5000, 0X90C1, 0X9181, 0X5140, 0X9301, 0X53C0, 0X5280, 0X9241, 0X9601, 0X56C0, 0X5780, 0X9741, 0X5500, 0X95C1, 0X9481, 0X5440, 0X9C01, 0X5CC0, 0X5D80, 0X9D41, 0X5F00, 0X9FC1, 0X9E81, 0X5E40, 0X5A00, 0X9AC1, 0X9B81, 0X5B40, 0X9901, 0X59C0, 0X5880, 0X9841, 0X8801, 0X48C0, 0X4980, 0X8941, 0X4B00, 0X8BC1, 0X8A81, 0X4A40, 0X4E00, 0X8EC1, 0X8F81, 0X4F40, 0X8D01, 0X4DC0, 0X4C80, 0X8C41, 0X4400, 0X84C1, 0X8581, 0X4540, 0X8701, 0X47C0, 0X4680, 0X8641, 0X8201, 0X42C0, 0X4380, 0X8341, 0X4100, 0X81C1, 0X8081, 0X4040 }; public: CProtocol() { Init(0); }; CProtocol(int TxMode) { Init(TxMode); }; void Init(int Txmode); // CRC handlers unsigned short CalcCRC(int len) const; // calculate the CRC upon len bytes void setCRC(); // calculate and set the CRC in the buffer void setCRC(unsigned short CRC); // set the CRC in the buffer unsigned short getCRC() const; // extract CRC value from buffer bool verifyCRC() const; // return true for CRC match void setActiveMode() { Controller.Byte0 = 0x76; }; // this allows heater to save tuning params to EEPROM void setPassiveMode() { Controller.Byte0 = 0x78; }; // this prevents heater saving tuning params to EEPROM // command helpers void resetCommand() { setRawCommand(0x00); }; void onCommand() { setRawCommand(0xA0); }; void offCommand() { setRawCommand(0x05); }; // raw command int getRawCommand() { return Controller.Command; }; void setRawCommand(int mode) { Controller.Command = mode; }; // Run state unsigned char getRunState() { return Heater.RunState; }; void setRunState(unsigned char state) { Heater.RunState = state; }; unsigned char getErrState() { return Heater.ErrState; }; void setErrState(unsigned char state) { Heater.ErrState = state; }; unsigned char getStoredErrCode() { return Heater.StoredErrorCode; }; void setStoredErrCode(unsigned char state) { Heater.StoredErrorCode = state; }; // short getVoltage_Supply(); void setVoltage_Supply(short voltsx10); // fan set/get short getFan_Actual(); // Heater side, actual short getFan_Min(); // Controller side, define min fan speed short getFan_Max(); // Controller side, define max fan speed void setFan_Actual(short speed); // Heater side, actual void setFan_Min(short speed); // Controller side, define min fan speed void setFan_Max(short speed); // Controller side, define max fan speed short getFan_Voltage(); // fan voltage void setFan_Voltage(short voltsx10); // fan voltage // pump set/get void setPump_Min(unsigned short Freq) { Controller.MinPumpFreq = Freq; }; void setPump_Max(unsigned short Freq) { Controller.MaxPumpFreq = Freq; }; void setPump_Actual(unsigned char Freq) { Heater.ActualPumpFreq = Freq; }; void setPump_Fixed(unsigned char Freq) { Heater.FixedPumpFreq = Freq; }; unsigned char getPump_Min() { return Controller.MinPumpFreq; }; // Tx side, min pump freq unsigned char getPump_Max() { return Controller.MaxPumpFreq; }; // Tx side, max pump freq unsigned char getPump_Actual() { return Heater.ActualPumpFreq; }; // Rx style, actual unsigned char getPump_Fixed() { return Heater.FixedPumpFreq; }; // Fixed mode pump frequency // temperature set/get void setTemperature_Desired(unsigned char degC) { Controller.DesiredTemperature = degC; }; void setTemperature_Min(unsigned char degC) { Controller.MinTemperature = degC; }; void setTemperature_Max(unsigned char degC) { Controller.MaxTemperature = degC; }; void setTemperature_Actual(unsigned char degC) { Controller.ActualTemperature = degC; }; unsigned char getTemperature_Desired() { return Controller.DesiredTemperature; }; unsigned char getTemperature_Min() { return Controller.MinTemperature; }; unsigned char getTemperature_Max() { return Controller.MaxTemperature; }; void setThermostatMode(unsigned on) { Controller.OperatingMode = on ? 0x32 : 0xCD; }; // glow plug short getGlowPlug_Current(); // glow plug current short getGlowPlug_Voltage(); // glow plug voltage void setGlowPlug_Current(short ampsx100); // glow plug current void setGlowPlug_Voltage(short voltsx10); // glow plug voltage // heat exchanger short getTemperature_HeatExchg(); // temperature of heat exchanger void setTemperature_HeatExchg(short degC); // temperature of heat exchanger void DebugReport(const char* hdr, const char* ftr); CProtocol& operator=(const CProtocol& rhs); }; #endif