492 lines
19 KiB
C++
492 lines
19 KiB
C++
/*
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Speeduino - Simple engine management for the Arduino Mega 2560 platform
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Copyright (C) Josh Stewart
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A full copy of the license may be found in the projects root directory
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*/
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/*
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Returns how much free dynamic memory exists (between heap and stack)
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*/
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#include "utils.h"
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int freeRam ()
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{
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#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
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extern int __heap_start, *__brkval;
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int v;
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return (int) &v - (__brkval == 0 ? (int) &__heap_start : (int) __brkval);
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#elif defined(CORE_TEENSY)
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uint32_t stackTop;
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uint32_t heapTop;
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// current position of the stack.
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stackTop = (uint32_t) &stackTop;
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// current position of heap.
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void* hTop = malloc(1);
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heapTop = (uint32_t) hTop;
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free(hTop);
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// The difference is the free, available ram.
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return (uint16_t)stackTop - heapTop;
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#endif
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}
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void setPinMapping(byte boardID)
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{
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switch (boardID)
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{
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case 0:
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//Pin mappings as per the v0.1 shield
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pinInjector1 = 8; //Output pin injector 1 is on
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pinInjector2 = 9; //Output pin injector 2 is on
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pinInjector3 = 11; //Output pin injector 3 is on
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pinInjector4 = 10; //Output pin injector 4 is on
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pinInjector5 = 12; //Output pin injector 5 is on
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pinCoil1 = 6; //Pin for coil 1
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pinCoil2 = 7; //Pin for coil 2
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pinCoil3 = 12; //Pin for coil 3
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pinCoil4 = 13; //Pin for coil 4
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pinCoil5 = 14; //Pin for coil 5
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pinTrigger = 2; //The CAS pin
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pinTrigger2 = 3; //The CAS pin
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pinTPS = A0; //TPS input pin
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pinMAP = A1; //MAP sensor pin
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pinIAT = A2; //IAT sensor pin
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pinCLT = A3; //CLS sensor pin
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pinO2 = A4; //O2 Sensor pin
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pinIdle1 = 46; //Single wire idle control
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pinIdle2 = 47; //2 wire idle control
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pinStepperDir = 16; //Direction pin for DRV8825 driver
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pinStepperStep = 17; //Step pin for DRV8825 driver
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pinFan = 47; //Pin for the fan output
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pinFuelPump = 4; //Fuel pump output
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pinTachOut = 49; //Tacho output pin
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pinFlex = 19; // Flex sensor (Must be external interrupt enabled)
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break;
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case 1:
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//Pin mappings as per the v0.2 shield
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pinInjector1 = 8; //Output pin injector 1 is on
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pinInjector2 = 9; //Output pin injector 2 is on
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pinInjector3 = 10; //Output pin injector 3 is on
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pinInjector4 = 11; //Output pin injector 4 is on
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pinInjector5 = 12; //Output pin injector 5 is on
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pinCoil1 = 28; //Pin for coil 1
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pinCoil2 = 24; //Pin for coil 2
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pinCoil3 = 40; //Pin for coil 3
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pinCoil4 = 36; //Pin for coil 4
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pinCoil5 = 34; //Pin for coil 5 PLACEHOLDER value for now
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pinTrigger = 20; //The CAS pin
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pinTrigger2 = 21; //The Cam Sensor pin
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pinTPS = A2; //TPS input pin
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pinMAP = A3; //MAP sensor pin
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pinIAT = A0; //IAT sensor pin
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pinCLT = A1; //CLS sensor pin
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pinO2 = A8; //O2 Sensor pin
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pinBat = A4; //Battery reference voltage pin
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pinDisplayReset = 48; // OLED reset pin
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pinTachOut = 49; //Tacho output pin
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pinIdle1 = 30; //Single wire idle control
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pinIdle2 = 31; //2 wire idle control
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pinStepperDir = 16; //Direction pin for DRV8825 driver
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pinStepperStep = 17; //Step pin for DRV8825 driver
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pinFan = 47; //Pin for the fan output
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pinFuelPump = 4; //Fuel pump output
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pinFlex = 2; // Flex sensor (Must be external interrupt enabled)
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break;
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case 2:
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//Pin mappings as per the v0.3 shield
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pinInjector1 = 8; //Output pin injector 1 is on
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pinInjector2 = 9; //Output pin injector 2 is on
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pinInjector3 = 10; //Output pin injector 3 is on
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pinInjector4 = 11; //Output pin injector 4 is on
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pinInjector5 = 12; //Output pin injector 5 is on
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pinCoil1 = 28; //Pin for coil 1
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pinCoil2 = 24; //Pin for coil 2
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pinCoil3 = 40; //Pin for coil 3
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pinCoil4 = 36; //Pin for coil 4
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pinCoil5 = 34; //Pin for coil 5 PLACEHOLDER value for now
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pinTrigger = 19; //The CAS pin
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pinTrigger2 = 18; //The Cam Sensor pin
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pinTPS = A2;//TPS input pin
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pinMAP = A3; //MAP sensor pin
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pinIAT = A0; //IAT sensor pin
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pinCLT = A1; //CLS sensor pin
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pinO2 = A8; //O2 Sensor pin
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pinBat = A4; //Battery reference voltage pin
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pinDisplayReset = 48; // OLED reset pin
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pinTachOut = 49; //Tacho output pin
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pinIdle1 = 5; //Single wire idle control
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pinIdle2 = 53; //2 wire idle control
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pinBoost = 7; //Boost control
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pinVVT_1 = 6; //Default VVT output
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pinFuelPump = 4; //Fuel pump output
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pinStepperDir = 16; //Direction pin for DRV8825 driver
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pinStepperStep = 17; //Step pin for DRV8825 driver
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pinFan = A13; //Pin for the fan output
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pinLaunch = 12; //Can be overwritten below
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pinFlex = 2; // Flex sensor (Must be external interrupt enabled)
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break;
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case 3:
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//Pin mappings as per the v0.4 shield
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pinInjector1 = 8; //Output pin injector 1 is on
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pinInjector2 = 9; //Output pin injector 2 is on
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pinInjector3 = 10; //Output pin injector 3 is on
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pinInjector4 = 11; //Output pin injector 4 is on
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pinInjector5 = 12; //Output pin injector 5 is on
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pinCoil1 = 40; //Pin for coil 1
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pinCoil2 = 38; //Pin for coil 2
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pinCoil3 = 52; //Pin for coil 3
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pinCoil4 = 50; //Pin for coil 4
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pinCoil5 = 34; //Pin for coil 5 PLACEHOLDER value for now
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pinTrigger = 19; //The CAS pin
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pinTrigger2 = 18; //The Cam Sensor pin
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pinTPS = A2;//TPS input pin
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pinMAP = A3; //MAP sensor pin
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pinIAT = A0; //IAT sensor pin
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pinCLT = A1; //CLS sensor pin
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pinO2 = A8; //O2 Sensor pin
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pinBat = A4; //Battery reference voltage pin
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pinDisplayReset = 48; // OLED reset pin
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pinTachOut = 49; //Tacho output pin (Goes to ULN2803)
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pinIdle1 = 5; //Single wire idle control
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pinIdle2 = 6; //2 wire idle control
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pinBoost = 7; //Boost control
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pinVVT_1 = 4; //Default VVT output
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pinFuelPump = 45; //Fuel pump output (Goes to ULN2803)
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pinStepperDir = 16; //Direction pin for DRV8825 driver
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pinStepperStep = 17; //Step pin for DRV8825 driver
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pinFan = 47; //Pin for the fan output (Goes to ULN2803)
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pinLaunch = 12; //Can be overwritten below
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pinFlex = 2; // Flex sensor (Must be external interrupt enabled)
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break;
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case 9:
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//Pin mappings as per the MX5 PNP shield
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pinInjector1 = 11; //Output pin injector 1 is on
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pinInjector2 = 10; //Output pin injector 2 is on
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pinInjector3 = 9; //Output pin injector 3 is on
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pinInjector4 = 8; //Output pin injector 4 is on
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pinInjector5 = 12; //Output pin injector 5 is on
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pinCoil1 = 39; //Pin for coil 1
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pinCoil2 = 41; //Pin for coil 2
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pinCoil3 = 42; //Pin for coil 3
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pinCoil4 = 43; //Pin for coil 4
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pinCoil5 = 34; //Pin for coil 5 PLACEHOLDER value for now
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pinTrigger = 19; //The CAS pin
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pinTrigger2 = 18; //The Cam Sensor pin
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pinTPS = A2;//TPS input pin
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pinMAP = A5; //MAP sensor pin
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pinIAT = A0; //IAT sensor pin
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pinCLT = A1; //CLS sensor pin
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pinO2 = A3; //O2 Sensor pin
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pinBat = A4; //Battery reference voltage pin
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pinDisplayReset = 48; // OLED reset pin
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pinTachOut = 49; //Tacho output pin (Goes to ULN2803)
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pinIdle1 = 2; //Single wire idle control
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pinIdle2 = 3; //2 wire idle control (Note this is shared with boost!!!)
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pinFuelPump = 37; //Fuel pump output (Goes to ULN2803)
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pinStepperDir = 16; //Direction pin for DRV8825 driver
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pinStepperStep = 17; //Step pin for DRV8825 driver
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pinFan = 47; //Pin for the fan output (Goes to ULN2803)
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pinLaunch = 12; //Can be overwritten below
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pinFlex = 2; // Flex sensor (Must be external interrupt enabled)
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break;
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case 10:
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//Pin mappings for user turtanas PCB
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pinInjector1 = 4; //Output pin injector 1 is on
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pinInjector2 = 5; //Output pin injector 2 is on
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pinInjector3 = 6; //Output pin injector 3 is on
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pinInjector4 = 7; //Output pin injector 4 is on
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pinInjector5 = 8; //Placeholder only - NOT USED
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pinInjector6 = 9; //Placeholder only - NOT USED
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pinInjector7 = 10; //Placeholder only - NOT USED
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pinInjector8 = 11; //Placeholder only - NOT USED
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pinCoil1 = 24; //Pin for coil 1
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pinCoil2 = 28; //Pin for coil 2
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pinCoil3 = 36; //Pin for coil 3
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pinCoil4 = 40; //Pin for coil 4
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pinCoil5 = 34; //Pin for coil 5 PLACEHOLDER value for now
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pinTrigger = 18; //The CAS pin
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pinTrigger2 = 19; //The Cam Sensor pin
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pinTPS = A2;//TPS input pin
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pinMAP = A3; //MAP sensor pin
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pinMAP2 = A8; //MAP2 sensor pin
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pinIAT = A0; //IAT sensor pin
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pinCLT = A1; //CLS sensor pin
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pinO2 = A4; //O2 Sensor pin
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pinBat = A7; //Battery reference voltage pin
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pinDisplayReset = 48; // OLED reset pin
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pinSpareTemp1 = A6;
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pinSpareTemp2 = A5;
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pinTachOut = 41; //Tacho output pin transistori puuttuu 2n2222 tähän ja 1k 12v
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pinFuelPump = 42; //Fuel pump output 2n2222
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pinFan = 47; //Pin for the fan output
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pinTachOut = 49; //Tacho output pin
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pinFlex = 2; // Flex sensor (Must be external interrupt enabled)
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break;
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case 20:
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//Pin mappings as per the Plazomat In/Out shields Rev 0.1
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pinInjector1 = 8; //Output pin injector 1 is on
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pinInjector2 = 9; //Output pin injector 2 is on
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pinInjector3 = 10; //Output pin injector 3 is on
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pinInjector4 = 11; //Output pin injector 4 is on
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pinInjector5 = 12; //Output pin injector 5 is on
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pinCoil1 = 28; //Pin for coil 1
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pinCoil2 = 24; //Pin for coil 2
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pinCoil3 = 40; //Pin for coil 3
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pinCoil4 = 36; //Pin for coil 4
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pinCoil5 = 34; //Pin for coil 5 PLACEHOLDER value for now
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pinSpareOut1 = 4; //Spare LSD Output 1(PWM)
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pinSpareOut2 = 5; //Spare LSD Output 2(PWM)
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pinSpareOut3 = 6; //Spare LSD Output 3(PWM)
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pinSpareOut4 = 7; //Spare LSD Output 4(PWM)
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pinSpareOut5 = 50; //Spare LSD Output 5(digital)
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pinSpareOut6 = 52; //Spare LSD Output 6(digital)
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pinTrigger = 20; //The CAS pin
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pinTrigger2 = 21; //The Cam Sensor pin
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pinSpareTemp2 = A15; //spare Analog input 2
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pinSpareTemp1 = A14; //spare Analog input 1
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pinO2 = A8; //O2 Sensor pin
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pinBat = A4; //Battery reference voltage pin
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pinMAP = A3; //MAP sensor pin
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pinTPS = A2;//TPS input pin
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pinCLT = A1; //CLS sensor pin
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pinIAT = A0; //IAT sensor pin
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pinFan = 47; //Pin for the fan output
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pinFuelPump = 4; //Fuel pump output
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pinTachOut = 49; //Tacho output pin
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case 30:
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//Pin mappings as per the dazv6 shield
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pinInjector1 = 8; //Output pin injector 1 is on
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pinInjector2 = 9; //Output pin injector 2 is on
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pinInjector3 = 10; //Output pin injector 3 is on
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pinInjector4 = 11; //Output pin injector 4 is on
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pinInjector5 = 12; //Output pin injector 5 is on
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pinCoil1 = 40; //Pin for coil 1
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pinCoil2 = 38; //Pin for coil 2
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pinCoil3 = 50; //Pin for coil 3
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pinCoil4 = 52; //Pin for coil 4
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pinCoil5 = 34; //Pin for coil 5 PLACEHOLDER value for now
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pinTrigger = 19; //The CAS pin
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pinTrigger2 = 18; //The Cam Sensor pin
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pinTrigger3 = 17; // cam sensor 2 pin
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pinTPS = A2;//TPS input pin
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pinMAP = A3; //MAP sensor pin
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pinIAT = A0; //IAT sensor pin
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pinCLT = A1; //CLS sensor pin
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pinO2 = A8; //O2 Sensor pin
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pinO2_2 = A9; //O2 sensor pin (second sensor)
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pinBat = A4; //Battery reference voltage pin
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pinDisplayReset = 48; // OLED reset pin
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pinTachOut = 49; //Tacho output pin
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pinIdle1 = 5; //Single wire idle control
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pinFuelPump = 45; //Fuel pump output
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pinStepperDir = 20; //Direction pin for DRV8825 driver
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pinStepperStep = 21; //Step pin for DRV8825 driver
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pinSpareHOut1 = 4; // high current output spare1
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pinSpareHOut2 = 6; // high current output spare2
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pinBoost = 7;
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pinSpareLOut1 = 43; //low current output spare1
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pinSpareLOut2 = 47;
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pinSpareLOut3 = 49;
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pinSpareLOut4 = 51;
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pinSpareLOut5 = 53;
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pinFan = 47; //Pin for the fan output
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break;
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default:
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//Pin mappings as per the v0.2 shield
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pinInjector1 = 8; //Output pin injector 1 is on
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pinInjector2 = 9; //Output pin injector 2 is on
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pinInjector3 = 10; //Output pin injector 3 is on
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pinInjector4 = 11; //Output pin injector 4 is on
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pinInjector5 = 12; //Output pin injector 5 is on
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pinCoil1 = 28; //Pin for coil 1
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pinCoil2 = 24; //Pin for coil 2
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pinCoil3 = 40; //Pin for coil 3
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pinCoil4 = 36; //Pin for coil 4
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pinCoil5 = 34; //Pin for coil 5 PLACEHOLDER value for now
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pinTrigger = 20; //The CAS pin
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pinTrigger2 = 21; //The Cam Sensor pin
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pinTPS = A2; //TPS input pin
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pinMAP = A3; //MAP sensor pin
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pinIAT = A0; //IAT sensor pin
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pinCLT = A1; //CLS sensor pin
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pinO2 = A8; //O2 Sensor pin
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pinBat = A4; //Battery reference voltage pin
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pinStepperDir = 16; //Direction pin for DRV8825 driver
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pinStepperStep = 17; //Step pin for DRV8825 driver
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pinDisplayReset = 48; // OLED reset pin
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pinFan = 47; //Pin for the fan output
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pinFuelPump = 4; //Fuel pump output
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pinTachOut = 49; //Tacho output pin
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break;
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}
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//Setup any devices that are using selectable pins
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if (configPage3.launchPin != 0) {
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pinLaunch = configPage3.launchPin;
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}
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if (configPage2.ignBypassPin != 0) {
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pinIgnBypass = configPage2.ignBypassPin;
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}
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if (configPage1.tachoPin != 0) {
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pinTachOut = configPage1.tachoPin;
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}
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if (configPage2.fuelPumpPin != 0) {
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pinFuelPump = configPage2.fuelPumpPin;
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}
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if (configPage4.fanPin != 0) {
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pinFan = configPage4.fanPin;
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}
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if (configPage3.boostPin != 0) {
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pinBoost = configPage3.boostPin;
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}
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if (configPage3.vvtPin != 0) {
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pinVVT_1 = configPage3.vvtPin;
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}
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//Finally, set the relevant pin modes for outputs
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pinMode(pinCoil1, OUTPUT);
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pinMode(pinCoil2, OUTPUT);
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pinMode(pinCoil3, OUTPUT);
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pinMode(pinCoil4, OUTPUT);
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pinMode(pinCoil5, OUTPUT);
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pinMode(pinInjector1, OUTPUT);
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pinMode(pinInjector2, OUTPUT);
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pinMode(pinInjector3, OUTPUT);
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pinMode(pinInjector4, OUTPUT);
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pinMode(pinInjector5, OUTPUT);
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pinMode(pinTachOut, OUTPUT);
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pinMode(pinIdle1, OUTPUT);
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pinMode(pinIdle2, OUTPUT);
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pinMode(pinFuelPump, OUTPUT);
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pinMode(pinIgnBypass, OUTPUT);
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pinMode(pinFan, OUTPUT);
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pinMode(pinStepperDir, OUTPUT);
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pinMode(pinStepperStep, OUTPUT);
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pinMode(pinBoost, OUTPUT);
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pinMode(pinVVT_1, OUTPUT);
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inj1_pin_port = portOutputRegister(digitalPinToPort(pinInjector1));
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inj1_pin_mask = digitalPinToBitMask(pinInjector1);
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inj2_pin_port = portOutputRegister(digitalPinToPort(pinInjector2));
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inj2_pin_mask = digitalPinToBitMask(pinInjector2);
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inj3_pin_port = portOutputRegister(digitalPinToPort(pinInjector3));
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inj3_pin_mask = digitalPinToBitMask(pinInjector3);
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inj4_pin_port = portOutputRegister(digitalPinToPort(pinInjector4));
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inj4_pin_mask = digitalPinToBitMask(pinInjector4);
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inj5_pin_port = portOutputRegister(digitalPinToPort(pinInjector5));
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inj5_pin_mask = digitalPinToBitMask(pinInjector5);
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ign1_pin_port = portOutputRegister(digitalPinToPort(pinCoil1));
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ign1_pin_mask = digitalPinToBitMask(pinCoil1);
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ign2_pin_port = portOutputRegister(digitalPinToPort(pinCoil2));
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ign2_pin_mask = digitalPinToBitMask(pinCoil2);
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ign3_pin_port = portOutputRegister(digitalPinToPort(pinCoil3));
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ign3_pin_mask = digitalPinToBitMask(pinCoil3);
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ign4_pin_port = portOutputRegister(digitalPinToPort(pinCoil4));
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ign4_pin_mask = digitalPinToBitMask(pinCoil4);
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ign5_pin_port = portOutputRegister(digitalPinToPort(pinCoil5));
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ign5_pin_mask = digitalPinToBitMask(pinCoil5);
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tach_pin_port = portOutputRegister(digitalPinToPort(pinTachOut));
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tach_pin_mask = digitalPinToBitMask(pinTachOut);
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//And for inputs
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pinMode(pinMAP, INPUT);
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pinMode(pinO2, INPUT);
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pinMode(pinO2_2, INPUT);
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pinMode(pinTPS, INPUT);
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pinMode(pinIAT, INPUT);
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pinMode(pinCLT, INPUT);
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pinMode(pinBat, INPUT);
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pinMode(pinTrigger, INPUT);
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pinMode(pinTrigger2, INPUT);
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pinMode(pinTrigger3, INPUT);
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pinMode(pinFlex, INPUT_PULLUP); //Standard GM / Continental flex sensor requires pullup
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// pinMode(pinLaunch, INPUT_PULLUP); //This should work for both NO and NC grounding switches
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|
if (configPage3.lnchPullRes) {
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pinMode(pinLaunch, INPUT_PULLUP);
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|
}
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|
else {
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pinMode(pinLaunch, INPUT); //If Launch Pull Resistor is not set make input float.
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|
}
|
|
|
|
//Set default values
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digitalWrite(pinMAP, HIGH);
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|
//digitalWrite(pinO2, LOW);
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|
digitalWrite(pinTPS, LOW);
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|
}
|
|
|
|
/*
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|
This function retuns a pulsewidth time (in us) using a either Alpha-N or Speed Density algorithms, given the following:
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|
REQ_FUEL
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|
VE: Lookup from the main MAP vs RPM fuel table
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|
MAP: In KPa, read from the sensor
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|
GammaE: Sum of Enrichment factors (Cold start, acceleration). This is a multiplication factor (Eg to add 10%, this should be 110)
|
|
injDT: Injector dead time. The time the injector take to open minus the time it takes to close (Both in uS)
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|
TPS: Throttle position (0% to 100%)
|
|
|
|
This function is called by PW_SD and PW_AN for speed0density and pure Alpha-N calculations respectively.
|
|
*/
|
|
unsigned int PW(int REQ_FUEL, byte VE, byte MAP, int corrections, int injOpen)
|
|
{
|
|
//Standard float version of the calculation
|
|
//return (REQ_FUEL * (float)(VE/100.0) * (float)(MAP/100.0) * (float)(TPS/100.0) * (float)(corrections/100.0) + injOpen);
|
|
//Note: The MAP and TPS portions are currently disabled, we use VE and corrections only
|
|
unsigned int iVE, iMAP, iAFR, iCorrections;
|
|
|
|
//100% float free version, does sacrifice a little bit of accuracy, but not much.
|
|
iVE = ((unsigned int)VE << 7) / 100;
|
|
if ( configPage1.multiplyMAP ) {
|
|
iMAP = ((unsigned int)MAP << 7) / currentStatus.baro; //Include multiply MAP (vs baro) if enabled
|
|
}
|
|
if ( configPage1.includeAFR && (configPage3.egoType == 2)) {
|
|
iAFR = ((unsigned int)currentStatus.O2 << 7) / currentStatus.afrTarget; //Include AFR (vs target) if enabled
|
|
}
|
|
iCorrections = (corrections << 7) / 100;
|
|
|
|
|
|
unsigned long intermediate = ((long)REQ_FUEL * (long)iVE) >> 7; //Need to use an intermediate value to avoid overflowing the long
|
|
if ( configPage1.multiplyMAP ) {
|
|
intermediate = (intermediate * iMAP) >> 7;
|
|
}
|
|
if ( configPage1.includeAFR && (configPage3.egoType == 2)) {
|
|
intermediate = (intermediate * iAFR) >> 7; //EGO type must be set to wideband for this to be used
|
|
}
|
|
intermediate = (intermediate * iCorrections) >> 7;
|
|
if (intermediate == 0) {
|
|
return 0; //If the pulsewidth is 0, we return here before the opening time gets added
|
|
}
|
|
|
|
intermediate += injOpen; //Add the injector opening time
|
|
if ( intermediate > 65535) {
|
|
intermediate = 65535; //Make sure this won't overflow when we convert to uInt. This means the maximum pulsewidth possible is 65.535mS
|
|
}
|
|
return (unsigned int)(intermediate);
|
|
|
|
}
|
|
|
|
//Convenience functions for Speed Density and Alpha-N
|
|
unsigned int PW_SD(int REQ_FUEL, byte VE, byte MAP, int corrections, int injOpen)
|
|
{
|
|
return PW(REQ_FUEL, VE, MAP, corrections, injOpen);
|
|
//return PW(REQ_FUEL, VE, 100, corrections, injOpen);
|
|
}
|
|
|
|
unsigned int PW_AN(int REQ_FUEL, byte VE, byte TPS, int corrections, int injOpen)
|
|
{
|
|
//Sanity check
|
|
if (TPS > 100) {
|
|
TPS = 100;
|
|
}
|
|
return PW(REQ_FUEL, VE, currentStatus.MAP, corrections, injOpen);
|
|
}
|