speeduino.ino File Reference

#include <stdint.h>
#include "globals.h"
#include "scheduler.h"
#include "comms.h"
#include "comms_legacy.h"
#include "comms_secondary.h"
#include "maths.h"
#include "corrections.h"
#include "timers.h"
#include "decoders.h"
#include "idle.h"
#include "auxiliaries.h"
#include "sensors.h"
#include "storage.h"
#include "crankMaths.h"
#include "init.h"
#include "utilities.h"
#include "engineProtection.h"
#include "scheduledIO.h"
#include "secondaryTables.h"
#include "comms_CAN.h"
#include "SD_logger.h"
#include "schedule_calcs.h"
#include "load_source.h"
#include "board_definition.h"
#include "unit_testing.h"
#include <RTC_LIB_H>
#include "units.h"
#include "fuel_calcs.h"
#include "preprocessor.h"
#include "dwell.h"

Macros
#define	CRANK_RUN_HYSTER   15
#define	SET_FUEL_CHANNEL(channel)    setFuelSchedule(fuelSchedule ##channel, UINT8_C(channel), current.PW ##channel, injectionStartAngles[(channel)-1U], crankAngle, fuelChannelsOn);
#define	SET_IGNITION_CHANNEL(channelIdx)    setIgnitionChannel(ignitionSchedule ##channelIdx, UINT8_C((channelIdx)), channel ##channelIdx ##IgnDegrees, ignition ##channelIdx ##StartAngle, crankAngle, dwell, ignitionChannelsOn);

Functions
void	calculateIgnitionAngles (uint16_t dwellAngle)
void	checkLaunchAndFlatShift ()
void	setup (void)
static uint16_t	applyFuelTrimToPW (trimTable3d *pTrimTable, uint16_t fuelLoad, int16_t RPM, uint16_t currentPW)
static uint8_t	getVE1 (void)
static int8_t	getAdvance1 (void)
static void	setFuelSchedule (FuelSchedule &schedule, uint8_t channel, uint16_t pw, uint16_t startAngle, uint16_t crankAngle, byte fuelChannelsOn)
static void	setFuelSchedules (const statuses &current, const uint16_t(&injectionStartAngles)[INJ_CHANNELS], uint16_t crankAngle, byte fuelChannelsOn)
static void	setIgnitionChannel (IgnitionSchedule &schedule, uint8_t channel, uint16_t channelDegrees, uint16_t startAngle, uint16_t crankAngle, uint16_t dwell, byte ignitionChannelsOn)
static void	setIgnitionChannels (uint16_t crankAngle, uint16_t dwell, byte ignitionChannelsOn)
	BEGIN_LTO_ALWAYS_INLINE (void) loop(void)

Variables
constexpr table2D_u8_u16_4 injectorAngleTable &	configPage2
constexpr table2D_u8_u8_8 rotarySplitTable &	configPage10
constexpr table2D_u8_u8_10 idleTargetTable &	configPage6

Detailed Description

Speeduino initialisation and main loop.

Macro Definition Documentation

CRANK_RUN_HYSTER

#define CRANK_RUN_HYSTER   15

SET_FUEL_CHANNEL

#define SET_FUEL_CHANNEL

(

channel

)

setFuelSchedule(fuelSchedule ##channel, UINT8_C(channel), current.PW ##channel, injectionStartAngles[(channel)-1U], crankAngle, fuelChannelsOn);

SET_IGNITION_CHANNEL

#define SET_IGNITION_CHANNEL

(

channelIdx

)

setIgnitionChannel(ignitionSchedule ##channelIdx, UINT8_C((channelIdx)), channel ##channelIdx ##IgnDegrees, ignition ##channelIdx ##StartAngle, crankAngle, dwell, ignitionChannelsOn);

Function Documentation

applyFuelTrimToPW()

static uint16_t applyFuelTrimToPW ( trimTable3d *  pTrimTable, uint16_t  fuelLoad, int16_t  RPM, uint16_t  currentPW  )

inlinestatic

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BEGIN_LTO_ALWAYS_INLINE()

BEGIN_LTO_ALWAYS_INLINE

(

void

)

Speeduino main loop.

Main loop chores (roughly in the order that they are performed):

• Check if serial comms or tooth logging are in progress (send or receive, prioritise communication)
• Record loop timing vars
• Check tooth time, update statuses (currentStatus) variables
• Read sensors
• get VE for fuel calcs and spark advance for ignition
• Check crank/cam/tooth/timing sync (skip remaining ops if out-of-sync)
• execute doCrankSpeedCalcs()

single byte variable LOOP_TIMER plays a big part here as:

• it contains expire-bits for interval based frequency driven events (e.g. 15Hz, 4Hz, 1Hz)
• Can be tested for certain frequency interval being expired by (eg) BIT_CHECK(LOOP_TIMER, BIT_TIMER_15HZ)

Sometimes loop() is inlined by LTO & sometimes not When not inlined, there is a huge difference in stack usage: 60+ bytes That eats into available RAM. Adding attribute((always_inline)) forces the LTO process to inline.

Since the function is declared in an Arduino header, we can't change it to inline, so we need to suppress the resulting warning.

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calculateIgnitionAngles()

void calculateIgnitionAngles

(

uint16_t

dwellAngle

)

Calculate the Ignition angles for all cylinders (based on config2::nCylinders). both start and end angles are calculated for each channel. Also the mode of ignition firing - wasted spark vs. dedicated spark per cyl. - is considered here.

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checkLaunchAndFlatShift()

void checkLaunchAndFlatShift

(

)

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getAdvance1()

static int8_t getAdvance1 ( void  )

inlinestatic

Lookup the ignition advance from 3D ignition table. The values used to look this up will be RPM and whatever load source the user has configured.

Returns

byte The current target advance value in degrees

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getVE1()

static uint8_t getVE1 ( void  )

inlinestatic

Lookup the current VE value from the primary 3D fuel map. The Y axis value used for this lookup varies based on the fuel algorithm selected (speed density, alpha-n etc).

Returns

byte The current VE value

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setFuelSchedule()

static void setFuelSchedule ( FuelSchedule &  schedule, uint8_t  channel, uint16_t  pw, uint16_t  startAngle, uint16_t  crankAngle, byte  fuelChannelsOn  )

inlinestatic

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setFuelSchedules()

static void setFuelSchedules ( const statuses &  current, const uint16_t(&)  injectionStartAngles[INJ_CHANNELS], uint16_t  crankAngle, byte  fuelChannelsOn  )

inlinestatic

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setIgnitionChannel()

static void setIgnitionChannel ( IgnitionSchedule &  schedule, uint8_t  channel, uint16_t  channelDegrees, uint16_t  startAngle, uint16_t  crankAngle, uint16_t  dwell, byte  ignitionChannelsOn  )

inlinestatic

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setIgnitionChannels()

static void setIgnitionChannels ( uint16_t  crankAngle, uint16_t  dwell, byte  ignitionChannelsOn  )

inlinestatic

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setup()

void setup

(

void

)

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Variable Documentation

configPage10

constexpr table2D_u8_u8_8 rotarySplitTable& configPage10

constexpr

configPage2

constexpr table2D_u8_u16_4 injectorAngleTable& configPage2

constexpr

configPage6

constexpr table2D_u8_u8_10 idleTargetTable& configPage6

constexpr