globalConstants.c File Reference

Global constant values. More...

#include "inc/freeEMS.h"

Include dependency graph for globalConstants.c:

Go to the source code of this file.

Defines

#define GLOBAL_CONSTANTS_C
#define NO_CONST_ARRAYS

Variables

const unsigned short memdumplength = 0x100
const unsigned short maxBasicDatalogLength = sizeof(CoreVar) + sizeof(DerivedVar) + sizeof(ADCArray)
const unsigned char interfaceVersionAndType [20] = {0,0,2,'I','F','r','e','e','E','M','S',' ','V','a','n','i','l','l','a',0}
const unsigned char firmwareVersion [45] = {"FreeEMS Vanilla 0.0.19 Doxygenated pre-alpha"}
const unsigned long masterFuelConstant = 139371764
const unsigned long MAFFuelConstant = 0
const unsigned short injectorSwitchOnCodeTime = 100
const unsigned short injectorSwitchOffCodeTime = 100
const unsigned short injectorMaximumPulseWidth = 0xF424
const unsigned short injectorMinimumPulseWidth = 100
const unsigned short ignitionMaximumDwell = 50000
const unsigned short ignitionMinimumDwell = 500
const unsigned short ignitionMaximumDelayToDwellStartAfterTooth = 50000
const unsigned short ignitionMinimumDelayToDwellStartAfterTooth = 500
const unsigned short leadingEdgePrimaryRPMInputCodeTime = 100
const unsigned short trailingEdgePrimaryRPMInputCodeTime = 100
const unsigned short leadingEdgeSecondaryRPMInputCodeTime = 100
const unsigned short trailingEdgeSecondaryRPMInputCodeTime = 100
const unsigned short dwellStartMasks [IGNITION_CHANNELS] = { BIT8_16, BIT9_16, BIT10_16, BIT11_16, BIT12_16, BIT13_16, BIT14_16, BIT15_16, BIT0_16, BIT1_16, BIT2_16, BIT3_16}
const unsigned short ignitionMasks [IGNITION_CHANNELS] = {NBIT8_16,NBIT9_16,NBIT10_16,NBIT11_16,NBIT12_16,NBIT13_16,NBIT14_16,NBIT15_16,NBIT0_16,NBIT1_16,NBIT2_16,NBIT3_16}
const unsigned char injectorMainOnMasks [INJECTION_CHANNELS] = {BIT2, BIT3, BIT4, BIT5, BIT6, BIT7}
const unsigned char injectorMainOffMasks [INJECTION_CHANNELS] = {NBIT2, NBIT3, NBIT4, NBIT5, NBIT6, NBIT7}
const unsigned char injectorMainEnableMasks [INJECTION_CHANNELS] = {0x30, 0xC0, 0x03, 0x0C, 0x30, 0xC0}
const unsigned char injectorMainDisableMasks [INJECTION_CHANNELS] = {0xCF, 0x3F, 0xFC, 0xF3, 0xCF, 0x3F}
const unsigned char injectorMainGoHighMasks [INJECTION_CHANNELS] = {BIT4, BIT6, BIT0, BIT2, BIT4, BIT6}
const unsigned char injectorMainGoLowMasks [INJECTION_CHANNELS] = {NBIT4, NBIT6, NBIT0, NBIT2, NBIT4, NBIT6}


Detailed Description

Global constant values.

All global constants values are, and should be, defined here.

Author:
Fred Cooke

Definition in file globalConstants.c.


Define Documentation

#define GLOBAL_CONSTANTS_C

Definition at line 37 of file globalConstants.c.

#define NO_CONST_ARRAYS

Definition at line 38 of file globalConstants.c.


Variable Documentation

const unsigned short dwellStartMasks[IGNITION_CHANNELS] = { BIT8_16, BIT9_16, BIT10_16, BIT11_16, BIT12_16, BIT13_16, BIT14_16, BIT15_16, BIT0_16, BIT1_16, BIT2_16, BIT3_16}

Definition at line 163 of file globalConstants.c.

Referenced by IgnitionDwellISR().

const unsigned char firmwareVersion[45] = {"FreeEMS Vanilla 0.0.19 Doxygenated pre-alpha"}

Displayable firmware version identifier

This should change every time the code is changed at all (even a little) before each release.

Definition at line 77 of file globalConstants.c.

Referenced by decodePacketAndRespond().

const unsigned short ignitionMasks[IGNITION_CHANNELS] = {NBIT8_16,NBIT9_16,NBIT10_16,NBIT11_16,NBIT12_16,NBIT13_16,NBIT14_16,NBIT15_16,NBIT0_16,NBIT1_16,NBIT2_16,NBIT3_16}

Definition at line 164 of file globalConstants.c.

Referenced by IgnitionFireISR().

const unsigned short ignitionMaximumDelayToDwellStartAfterTooth = 50000

Definition at line 129 of file globalConstants.c.

const unsigned short ignitionMaximumDwell = 50000

Definition at line 123 of file globalConstants.c.

const unsigned short ignitionMinimumDelayToDwellStartAfterTooth = 500

Definition at line 132 of file globalConstants.c.

const unsigned short ignitionMinimumDwell = 500

Definition at line 126 of file globalConstants.c.

const unsigned char injectorMainDisableMasks[INJECTION_CHANNELS] = {0xCF, 0x3F, 0xFC, 0xF3, 0xCF, 0x3F}

Definition at line 170 of file globalConstants.c.

Referenced by InjectorXISR().

const unsigned char injectorMainEnableMasks[INJECTION_CHANNELS] = {0x30, 0xC0, 0x03, 0x0C, 0x30, 0xC0}

Definition at line 169 of file globalConstants.c.

Referenced by PrimaryRPMISR().

const unsigned char injectorMainGoHighMasks[INJECTION_CHANNELS] = {BIT4, BIT6, BIT0, BIT2, BIT4, BIT6}

Definition at line 171 of file globalConstants.c.

Referenced by InjectorXISR().

const unsigned char injectorMainGoLowMasks[INJECTION_CHANNELS] = {NBIT4, NBIT6, NBIT0, NBIT2, NBIT4, NBIT6}

Definition at line 172 of file globalConstants.c.

Referenced by InjectorXISR().

const unsigned char injectorMainOffMasks[INJECTION_CHANNELS] = {NBIT2, NBIT3, NBIT4, NBIT5, NBIT6, NBIT7}

Definition at line 168 of file globalConstants.c.

Referenced by InjectorXISR().

const unsigned char injectorMainOnMasks[INJECTION_CHANNELS] = {BIT2, BIT3, BIT4, BIT5, BIT6, BIT7}

Definition at line 167 of file globalConstants.c.

Referenced by InjectorXISR(), and PrimaryRPMISR().

const unsigned short injectorMaximumPulseWidth = 0xF424

Definition at line 115 of file globalConstants.c.

const unsigned short injectorMinimumPulseWidth = 100

Definition at line 118 of file globalConstants.c.

Referenced by PrimaryRPMISR().

const unsigned short injectorSwitchOffCodeTime = 100

Definition at line 112 of file globalConstants.c.

Referenced by PrimaryRPMISR().

const unsigned short injectorSwitchOnCodeTime = 100

Definition at line 109 of file globalConstants.c.

Referenced by InjectorXISR().

const unsigned char interfaceVersionAndType[20] = {0,0,2,'I','F','r','e','e','E','M','S',' ','V','a','n','i','l','l','a',0}

Serial interface unique identifier

This should only change when the serial interface changes (even a little)

This field consists of 3 chars for a 3 part version number and a free form string. For any unique string the version number is also unique. In this way tools can easily support a range of versions for a specific unique string ID

Definition at line 71 of file globalConstants.c.

Referenced by decodePacketAndRespond().

const unsigned short leadingEdgePrimaryRPMInputCodeTime = 100

Definition at line 137 of file globalConstants.c.

const unsigned short leadingEdgeSecondaryRPMInputCodeTime = 100

Definition at line 143 of file globalConstants.c.

const unsigned long MAFFuelConstant = 0

MAF fuel constant

Todo:
TODO Determine what the value of MAF fuel constant should be

Definition at line 105 of file globalConstants.c.

const unsigned long masterFuelConstant = 139371764

Divisors and untunable physical constants combined into a single master fuel constant

const unsigned short molarMassOfAir = 2897; // in grams per 100 moles, so divide by 100 to get gm/mol const unsigned short msToTicks = 1250; // constant to bring ms into 0.8us chunks const unsigned short universalGasConstant = 34056; // 8.314472 * 4096, so divide by 4096 to get real number

hash define injectorFlowDivisor 1024 hash define injectorFlowUnitDivisor 1000 - to get it into litres/second hash define injectorFlowTotalDivisor 1024000 hash define stoichiometricAFRDivisor 1024 hash define universalGasConstantDivisor 4096 hash define molarMassOfAirDivisor 100 hash define perCylinderVolumeDivisor 32768

master = (msToTicks * molarMassOfAir * universalGasConstantDivisor * stoichiometricAFRDivisor * injectorFlowTotalDivisor) / (universalGasConstant * molarMassOfAirDivisor * perCylinderVolumeDivisor); master = (1250 * 2897 * 4096 * 1024 * 1024000 ) / (34056 * 100 * 32768 ); http://www.google.com/search?hl=en&safe=off&q=((1250+*+2897+*+4096+*+1024+*+1024000)+2F+(34056+*++100+*+32768)&btnG=Search

((1250 * 2897 * 4096 * 1024 * 1024000) / (34056 * 100 * 32768) = 139371764

Definition at line 99 of file globalConstants.c.

Referenced by initConfiguration().

const unsigned short maxBasicDatalogLength = sizeof(CoreVar) + sizeof(DerivedVar) + sizeof(ADCArray)

Definition at line 57 of file globalConstants.c.

Referenced by decodePacketAndRespond(), and initVariables().

const unsigned short memdumplength = 0x100

Definition at line 56 of file globalConstants.c.

const unsigned short trailingEdgePrimaryRPMInputCodeTime = 100

Definition at line 140 of file globalConstants.c.

const unsigned short trailingEdgeSecondaryRPMInputCodeTime = 100

Definition at line 146 of file globalConstants.c.

Referenced by PrimaryRPMISR().


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