223 lines
7.2 KiB
C
223 lines
7.2 KiB
C
#include <Arduino.h>
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const byte ms_version = 20;
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const byte signature = 20;
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const byte data_structure_version = 2; //This identifies the data structure when reading / writing.
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const byte page_size = 128;
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//Handy bitsetting macros
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#define BIT_SET(a,b) ((a) |= (1<<(b)))
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#define BIT_CLEAR(a,b) ((a) &= ~(1<<(b)))
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#define BIT_CHECK(var,pos) ((var) & (1<<(pos)))
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//Define bit positions within engine virable
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#define BIT_ENGINE_RUN 0 // Engine running
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#define BIT_ENGINE_CRANK 1 // Engine cranking
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#define BIT_ENGINE_ASE 2 // after start enrichment (ASE)
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#define BIT_ENGINE_WARMUP 3 // Engine in warmup
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#define BIT_ENGINE_TPS 4 // in TPS acceleration mode
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#define BIT_ENGINE_ACC 5 // in deceleration mode
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#define BIT_ENGINE_MAP 6 // in MAP acceleration mode
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#define BIT_ENGINE_IDLE 7 // idle on
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//Define masks for Squirt
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#define BIT_SQUIRT_INJ1 0 //inj1 Squirt
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#define BIT_SQUIRT_INJ2 1 //inj2 Squirt
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#define BIT_SQUIRT_SCHSQRT 2 //Scheduled to squirt
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#define BIT_SQUIRT_SQRTING 3 //Squirting
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#define BIT_SQUIRT_INJ2SCHED 4
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#define BIT_SQUIRT_INJ2SQRT 5 //Injector2 (Schedule2)
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#define BIT_SQUIRT_BOOSTCTRLOFF 6 //Squirting Injector 2
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#define SIZE_BYTE 8
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#define SIZE_INT 16
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//The status struct contains the current values for all 'live' variables
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//In current version this is 64 bytes
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struct statuses {
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volatile boolean hasSync;
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unsigned int RPM;
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byte MAP;
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byte TPS; //The current TPS reading (0% - 100%)
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byte TPSlast; //The previous TPS reading
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byte tpsADC; //0-255 byte representation of the TPS
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byte tpsDOT;
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byte VE;
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byte O2;
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byte coolant;
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byte cltADC;
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byte IAT;
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byte iatADC;
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byte batADC;
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byte advance;
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byte corrections;
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volatile byte squirt;
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byte engine;
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unsigned long PW; //In uS
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volatile byte runSecs; //Counter of seconds since cranking commenced (overflows at 255 obviously)
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volatile byte secl; //Continous
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volatile int loopsPerSecond;
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//Helpful bitwise operations:
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//Useful reference: http://playground.arduino.cc/Code/BitMath
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// y = (x >> n) & 1; // n=0..15. stores nth bit of x in y. y becomes 0 or 1.
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// x &= ~(1 << n); // forces nth bit of x to be 0. all other bits left alone.
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// x |= (1 << n); // forces nth bit of x to be 1. all other bits left alone.
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};
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//Page 1 of the config - See the ini file for further reference
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//This mostly covers off variables that are required for fuel
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struct config1 {
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/*
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byte engineCylinders; 1 // May support more than 1 cyl later. Always will assume 1 injector per cylinder.
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byte engineInjectorSize; 80 // In cc/min
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byte engineStoich; 14.7 // Stoichiometric ratio of fuel used
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byte engineStrokes; 4 //Can be 2 stroke or 4 stroke, any other value will cause problems
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byte engineDwell; 3000 //The spark dwell time in uS
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*/
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byte crankCold; //Cold cranking pulsewidth modifier. This is added to the fuel pulsewidth when cranking under a certain temp threshold (ms)
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byte crankHot; //Warm cranking pulsewidth modifier. This is added to the fuel pulsewidth when cranking (ms)
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byte asePct; //Afterstart enrichment (%)
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byte aseCount; //Afterstart enrichment cycles. This is the number of ignition cycles that the afterstart enrichment % lasts for
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byte wueValues[10]; //Warm up enrichment array (10 bytes)
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byte taeBins[4]; //TPS based acceleration enrichment bin 1 of 4 (ms)
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byte taeColdA;
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byte tpsThresh;
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byte taeTime;
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byte tdePct;
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byte egoTemp; //The temperature at which the EGO / O2 sensor values start being used (Degrees)
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byte egoCount;
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byte egoDelta;
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byte egoLimit;
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byte reqFuel;
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byte divider;
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byte alternate;
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byte injOpen;
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byte injOCfuel;
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byte injPwmP;
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byte injPwmT;
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byte battFac; //Whether to compensate pulsewidth for battery voltage (ms/v)
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int rpmk; //2 bytes
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//36
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//config1 in ini
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byte mapType : 2;
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byte strokes : 1;
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byte injType : 1;
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byte nCylinders : 4; //Number of cylinders
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//config2 in ini
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byte cltType : 2;
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byte matType : 2;
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byte nInjectors : 4; //Number of injectors
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//config3 in ini
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byte engineType : 1;
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byte egoType : 1;
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byte algorithm : 1; //"Speed Density", "Alpha-N"
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byte baroCorr : 1;
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byte primePulse;
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byte egoRPM;
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byte fastIdleT; //Fast idle temperature
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byte egoSwitch;
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byte taeColdM;
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byte tpsMin;
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byte tpsMax;
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byte unused1;
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//48
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};
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//Page 2 of the config - See the ini file for further reference
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//This mostly covers off variables that are required for ignition
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struct config2 {
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byte triggerAngle;
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byte FixAng;
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byte Trim;
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byte CrankAng;
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byte IgHold;
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byte Trig_plus : 2;
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byte TrigCrank : 1;
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byte IgInv : 1;
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byte oddfire : 4;
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byte IdleAdv;
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byte IdleAdvTPS;
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byte IdleAdvRPM;
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byte IdleAdvCLT; //The temperature below which the idle is advanced
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byte IdleDelayTime;
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byte StgCycles; //The number of initial cycles before the ignition should fire when first cranking
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byte dwellCont; //Fixed duty dwell control
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byte dwellCrank; //Dwell time whilst cranking
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byte dwellRun; //Dwell time whilst running
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byte triggerTeeth; //The full count of teeth on the trigger wheel if there were no gaps
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byte triggerMissingTeeth; //The size of the tooth gap (ie number of missing teeth)
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byte crankRPM; //RPM below which the engine is considered to be cranking
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byte floodClear; //TPS value that triggers flood clear mode (No fuel whilst cranking)
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byte SoftRevLim; //Soft rev limit (RPM/100)
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byte SoftLimRetard; //Amount soft limit retards (degrees)
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byte SoftLimMax; //Time the soft limit can run
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byte HardRevLim; //Hard rev limit (RPM/100)
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byte taeBins[4]; //TPS based acceleration enrichment bins (%/s)
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byte taeValues[4]; //TPS based acceleration enrichment rates (% to add)
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byte wueBins[10]; //Warmup Enrichment bins (Values are in configTable1)
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byte unused115;
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byte unused116;
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byte unused117;
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byte unused118;
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byte unused119;
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byte unused120;
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byte unused121;
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byte unused122;
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byte unused123;
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byte unused124;
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byte unused125;
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byte unused126;
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byte unused127;
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};
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//Pin mappings as per the v0.2 shield
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#define pinInjector1 8 //Output pin injector 1 is on
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#define pinInjector2 9 //Output pin injector 2 is on
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#define pinInjector3 10 //Output pin injector 3 is on
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#define pinInjector4 11 //Output pin injector 4 is on
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#define pinCoil1 24 //Pin for coil 1
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#define pinCoil2 28 //Pin for coil 2
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#define pinCoil3 36 //Pin for coil 3
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#define pinCoil4 40 //Pin for coil 4
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#define pinTrigger 20 //The CAS pin
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#define pinTrigger2 21 //The Cam Sensor pin
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#define pinTPS A2 //TPS input pin
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#define pinMAP A3 //MAP sensor pin
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#define pinIAT A0 //IAT sensor pin
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#define pinCLT A1 //CLS sensor pin
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#define pinO2 A8 //O2 Sensor pin
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#define pinBat A4 //O2 Sensor pin
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//Pin mappings as per the v0.1 shield
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/*
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#define pinInjector1 8 //Output pin injector 1 is on
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#define pinInjector2 9 //Output pin injector 2 is on
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#define pinInjector3 11 //Output pin injector 3 is on
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#define pinInjector4 10 //Output pin injector 4 is on
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#define pinCoil1 6 //Pin for coil 1
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#define pinCoil2 7 //Pin for coil 2
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#define pinCoil3 12 //Pin for coil 3
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#define pinCoil4 13 //Pin for coil 4
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#define pinTrigger 2 //The CAS pin
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#define pinTPS A0 //TPS input pin
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#define pinMAP A1 //MAP sensor pin
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#define pinIAT A2 //IAT sensor pin
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#define pinCLT A3 //CLS sensor pin
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#define pinO2 A4 //O2 Sensor pin
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*/
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