This shows an example config.txt with comments that are mostly useful
Begin Config.txt
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################################################
# Last Updated 22 Mar 2005
# GRM car: NA car
# 4 window hall sensor
# target board v3.2
# Most copied from Marcell's v3.1 config and tables
# Im not sure which injectors I have
# going with lebaron 2.2 turbo injectors
# Injectors Populated: INJA, INJB, INJD, INJG
# Wideband Heater: WB1
# IGNition Drivers: DR_00, DR_01, DR_02, DR_03,
#
###################################################
# STARTUP
# Pump Priming
primep=0D # 1.3ms
#
# --- Hot start Priming pulse scaling at 170F (80= half FF = same as cold)
primep_temp_scaling=A0
# ======== Cranking Pulse
# typically cwh =~ 0.2 * cwl
cwl=46 # Cranking pulsewidth [100 usec] at -40 F (7ms)
cwh=14 # Cranking pulsewidth [100 usec] at 170 F (2ms)
cranking_thres=03 # Cranking threshold [100 rpm]
###################################################
#
# Initial Start and Warmup
#
# ======== Afterstart
# TODO: try avew=28 and awec=A0 initially
awev=44 # Afterstart warmup enrichment (percent, added value)
awev_temp_scaling=98 # Afterstart warmup scaling at 170F (80=half, ff=same as cold)
awec=41 # Afterstart number of engine cycles
# ======== Warmup Coolant
# warmup_clt_range defines the temperature bins used for interpolation
# the values in warmup_clt_range is degrees Fahrenheit + 40
# C = 5/9 * F - 40
# F = 9/5 * C + 72
warmup_clt_range[0]=00 # -40.0 C
warmup_clt_range[1]=14 # -28.8 C
warmup_clt_range[2]=28 # -17.7 C
warmup_clt_range[3]=3C # -6.6 C
warmup_clt_range[4]=50 # 4.4 C
warmup_clt_range[5]=64 # 15.5 C
warmup_clt_range[6]=78 # 26.6 C
warmup_clt_range[7]=8C # 37.7 C
warmup_clt_range[8]=AA # 54.4 C
warmup_clt_range[9]=C8 # 71.1 C
# warmup_clt is the value of each bin defined in warmup_clt_range
# this is the actual warmup enrichment. Values biased at 100
warmup_clt[0]=9B
warmup_clt[1]=9B
warmup_clt[2]=99
warmup_clt[3]=93
warmup_clt[4]=8A
warmup_clt[5]=7d
warmup_clt[6]=78
warmup_clt[7]=6e
warmup_clt[8]=6a
warmup_clt[9]=64
# warmup enrichment can be decreased as a function of rpm.
# set all to 0x64 to disable
warmup_rpm[0]=64 # 100%
warmup_rpm[1]=64
warmup_rpm[2]=64
warmup_rpm[3]=64
warmup_rpm[4]=64
warmup_rpm[5]=64
warmup_rpm[6]=64
warmup_rpm[7]=64
##############################################################
#
# Injector settings
#
# Fueling Parameters (Last years settings bad! Need NON-PWM settings)
req_fuel = 48 # Fuel constant (req_fuel) (72 Decimal)
# for a 4 cyl you normally want
# divider * (alternate+1) = 4
# That is divider=02 and alternate=01 for 2 banks
# or divider=01 and alternate=03 for 4 injector banks
divider = 02 # IRQ divide factor for pulse
# this is alternate=01, but bit4=1 enables squirting both banks at cranking
alternate= 11 # Alternate injector drivers Works with h[0]
# alternate = 00 means use only first (batch fire or TBI)
# alternate = 01 means alternate between first and second
# alternate = 03 to use indexes 3,2,1,0
# alternate = 07 to use indexes 7,6,5,4,3,2,1,0
injopen=22 # [16usec] based, (mutiply MS standard value by 6.25 to get [16usec])
battfac=24 # [16usec] based, (mutiply MS standard value by 6.25 to get [16usec])
# TODO: 104 kPa (GM) MAP sensor. Do you have this?
kpafac=34
kpaofs=00
# TODO: check injocful from Marcell's config
injocfuel=00 #PW-correlated amount of fuel injected during injector open[4usec]
injrampup_battfac=FF
injpwm=FF # Injector PWM duty cycle (when current limiting is active) (set to ~100% no PWM - JJR 03/31 15:15)
injpwmt=FF # Injector PWM time at which to activate pwm [100 usec] FF=disabled (set to 1 mS per MegaManual for starting point)
injpwm6=00 # added Injector PWM duty cycle during low battery voltage (6V)
#
rpmk[0]=0B #12000 rpm/4clyn
rpmk[1]=B8
####################################################################
#
# TPS related information
#
tpsdot_kpadot_conf=00
# TPS dot bins
tpsdotrate[0]=05
tpsdotrate[1]=0E
tpsdotrate[2]=20
tpsdotrate[3]=40
# TPS accelerator enrichement: set to 00 for inital VE tuning
tpsaq[0]=00
tpsaq[1]=00
tpsaq[2]=00
tpsaq[3]=00
# not sure about these
tps_thresh=05
tpsasync=02
acmult=64
tpsacold=05
tpsdq=64
decel_fuelcut_thres=FF
overrun_fuelcut=10 # 1600 RPM
overrun_fuelresume=0F # 1500 RPM
#########################################################
#
# Rev limiter
#
# Rev limit (hard) [x100 rpm] eg. 0x4B * 100rpm = 7500rpm
rev_limit=4B
#########################################################
#
# No idea
#
airden_ignore=62
###########################################################
#
# these are important
# These useful descriptions are left over from Megasquirt
#
config11=30 # old config 31
config12=30 # 4 cylinders
config13=02 # old config 00
############################################################
#
# battery calibration for starting and dwell I believe
#
batt_cal=BC
###########################################################
#
# Fast Idle
#
fastidle=C6 #RPM??
###########################################################
#
# Barometer settings
#
# ==== Mean Barometric Pressure -- TODO explain better
baro=64
# ========= max allowed difference in barometric pressure
# else use baro=0x64 (100 kPa)
# dbaro=10 # Marcells setting
dbaro=0C
###########################################################
#
# TPS calibration
# read TPS from LCD (or serial connection Manmll)
# in both endstates of throttle and configure these
# Important for triggering idle mode and acceleration enrichment
# --- TPS calibration means that the Analog(voltage) to Digital (count) is set
# at zero throttle and Wide Open Throttle (WOT)
# The standard: lowest voltage for closed throttle
# highest voltage for open throttle
# --- See Manual or wiki page for how to hook up.
# --- Most Tuning software has this function in them
# Megatune, Megatunix, etc.
#
tps_low=00
tps_high=FF
###########################################################
#
# Coolant Fan output
# This ouput is generally used to trigger a relay to turn on
# the electric radiator fan, or engage the electric clutch for
# engine cooling fan
# NOTE: the GRM cars use the stock VW low temp fan switch in the radiator
# And as such this ouput is not needed
# --- Temperature when fan will turn on degC eg. 0x55 = 85degC
fan_temp=EA
# --- Decrease in temperature required to turn fan off.
# --- fun_temp-fan_hyst=temp when fun will turn off 0x55 - 0x09 = 0x4C (76degC)
fan_hyst=05
# coolant fan, output selection (digitalout)
fan_channel=FF
###########################################################
#
# Idle air controller -- I dont have one.
#
# This is where the idle is setup lots of stuff here to screw up.
#
iac_step_seq=C9
# stepper is enabled with 7E, you probably want iac_conf=18 or whatever ..check it
iac_conf=7E ???
iac_max_steps=F0
iac_tps_thres=05
iac_cold_idle_temp=A0
iac_warm_idle_temp=D0
iac_cold_rpm=74
iac_warm_rpm=67
iac_cold_start_pos=E2
iac_warm_start_pos=B0
iac_afterstart_rpm=1F
iac_afterstart_duration=20
iac_afterstart_steps=04
iac_kp=25
iac_ki=10
iac_kd=30
iac_integral_speed=C0
iac_integral_limit_dec=05
iac_integral_limit_inc=E0
iac_integral_deadband=0A
iac_deadband=05
iac_pid_conf=01
iac_overclose_interval=B8
iac_ref_pos[0]=35
iac_ref_pos[1]=34
iac_ref_pos[2]=33
iac_ref_pos[3]=32
iac_ref_pos[4]=31
iac_ref_pos[5]=30
iac_ref_pos[6]=2F
iac_ref_pos[7]=2E
iac_ref_pos[8]=2D
iac_ref_pos[9]=2C
iac_sol_channel=FF
iac_ign_advance_change=28
iac_ign_retard_change=20
iac_ign_advance_limit=10
iac_ign_retard_limit=1A
iac_ign_threshold=08
###########################################################
#
# EGO Exhaust Gas Oxygen -- very important.
# EGO configuration ###########################################################
# Dave Brul's EGO setup
### --- 07 Variable Air Fuel Ratio
ego_conf=07 # 07 variable afr
# --- Step size (percent) [0.4%] eg. 0x02 * 0.4% = 0.8%
ego_delta=02
### --- Time constant (engine cycles) for changing correction factor
# This will help smooth out the learning process
ego_lag=15
### --- Min coolant temperature for ego enabling[F] eg. 0xC2 = 194degF (108degC)
# C = 5/9 * F - 40
# 60 degrees celcius
# Setting this requires you to know if F or Cel is your chosen measurement
ego_coolant=94 #C2
### --- Max TPS position for ego correction, This setting allows for learning at WOT
ego_maxtps=FF
### --- Max MAP for O2 correction[kPa]
ego_maxmap=FF
### --- Min RPM for ego enabling [100rpm] eg. 0x0C * 100rpm = 1200rpm
# Ignore all information below this RPM
ego_minrpm=0C
### --- Max rpm for O2 correction [100rpm] 0x32 * 100rpm = 7500rpm
ego_maxrpm=FF
### --- Warmup time [sec] eg. 0x3C (60 sec) [IS THIS FOR THE O2 sensor?]
ego_warmup=3C
### --- Max percent to lean afr[0.4%] eg. 0x30 * 0.4% = 19.2%
ego_lean_limit=30
### --- Max percent to rich afr[0.4%] eg. 0x80 * 0.4% = 51.2%
ego_rich_limit=30
### --- THIS NEEDS DEFINED
ego_pid_kp=40
# --- ego_target = 51 * O2_sensor_voltage
ego_target=19
# --- not used for the wbo2 incredible ego, only for NBO2_PID_EGO_EXPERIMENT
# Does this need to be commented for WBO2 setup?
ego_pid_window=FF
# MCELL vs DaveB (X = same; - = diff)
# X ego_conf=07 DB:07
# - ego_lag=04 DB:15
# - ego_coolant=00 DB:94
# X ego_maxtps=FF DB:FF
# X ego_maxmap=FF DB:FF
# - ego_minrpm=04 DB:0C
# X ego_maxrpm=FF DB:FF
# X ego_warmup=3C DB:3c
# - ego_lean_limit=1D DB:30
# - ego_rich_limit=28 DB:30
# X ego_pid_kp=40 DB:40
# NA mt_unused=00 DB: NOT DEFINED
# NA ego_delta=01 DB: NOT DEFINED
# X ego_target=19 DB:19
# X ego_pid_window=FF DB:FF
###########################################################
#
# Copy WBO2 section from somewhere,
# Marcell's setup is special and MUST NOT BE USED
# TODO: Rip MCELLs WBO2 from the Reference firmware
# TODO: setup standard LSU4 setup and other std WBO2 used
#
# Dave Brul's WBO2 setup
# wbo2 config with softpwm_act; softpmw_act_var is broken!!
# You must still calibrate your WBO2 see Manual or
# wiki page:
#
# --- Semi useful varable names
wbo2_warmup_ramp=A0
wbo2_warmup_target=FF
wbo2_abs_limit=E4
wbo2_limit_maxt=A0
wbo2_fallback=60
wbo2_retry_t=06
wbo2_edgetime_corr=BA
wbo2_edgetime_min=50
# Dave I see your calculations here. Are they for the Calibration?
# How about putting a worksheet here?
# (2.55mA * 61.9 / 106.2 ) + 2.55 = 4.036299 mA
# 4.036299 * 510 Ohm = 2.058512712 V
# i measured +/- 2.06V -> Good!
# 1% is eaten by the 10k pump+ to pump- resistor
# but does the AE calibration value also match my Rcal of 106.2 ?
# --- O2 percentage of 'normal' air: 20.947%, calibrated to 20.95
wbo2_calibration=AE # A1 for the ETAS3 sensor with Rcal = 75.3 ohm
# --- I NEED A DESCRIPTION
wbo2_pump_pw_zero=64
# wbo2, target Ri (pulse amplitude) [5V/8192]
wbo2_ri_target=96
# OPA amplification, g = 270/75 + 1 = 4.6
# Vadc = g * (5 - Vnernst)
#
# Vnernst DC at sensor wire = 4.45V # Vnernst DC at adc = 4.6 * (5 - 4.45) = 2.53
#
# nernstdc_target = Vadc / g * 256 = 141 = 0x8D
# --- wbo2, target nernstDC [5V/256]
wbo2_nernstdc_target=8D
# --- I NEED A DESCRIPTION
wbo2_heater_pid_kp=46
wbo2_heater_pid_ki=10
wbo2_heater_pid_kd=1A
wbo2_heater_pid_ilimit=80
# --- I NEED A DESCRIPTION
wbo2_pump_pid_kp=40 # 2E
wbo2_pump_pid_ki=2E # 1D
wbo2_pump_pid_kd=08 # 08
wbo2_pump_pid_ilimit=84 # 84
# --- I NEED A DESCRIPTION
wbo2_ri_confidence_scale=80
###########################################################
#
# Knock Detection and correction 2-channel Knock sensor control
#
# NOTE: GRM car NOT using Knock being used this go round
# --- Dave Brul's notes PROBLEM his has more settings.
# engine with bore 83mm and stroke 86mm
# f_knock = 900 / (pi*r) = 900 / (pi * 0.5 * 0.083) = 6.903 kHz
# from datasheet tpic801.pdf page 10 table#1
# bandpass frequency selection 6.94 kHz is closest to 6.903 kHz
# filter setting = 29 hex (41 dec)
# -- Overall System SettingsKnock selection
knock_conf=00
knock_sampling_window=FF
# --- RPM range valid for FF, FF means no knock
knock_minrpm=FF
knock_maxrpm=FF
# --- Channel #1 setup
knock1_frequency=29
knock1_gain=FF
knock1_integrator=FF
# --- Channel #2 setup
knock2_frequency=29
knock2_gain=FF
knock2_integrator=FF
# --- Trigger level
knock_threshold=FF
knock_noise_scale=FF
# --- Ignition effects
# ----- Knock getting louder
knock_max_retard=FF
knock_default_retard=00
knock_retard_step=FF
knock_retard_delay=FF
# ----- Knock getting softer
knock_advance_step=FF
knock_advance_delay=FF
###########################################################
#
# VE learning VERY important
#
# ok how does this work
ve_learn_coolant=D8
ve_learn_max_power=FF
ve_learn_rpm_scale=1E
ve_learn_kpa_scale=1E
ve_learn_ego_scale=43
ve_learn_min_weight=4D
ve_learn_speed=FF
ve_learn_limit=FF
ve_learn_conf=00
###########################################################
#
# LCD layout
#
# A better description would definately be helpful
lcd_c0=FE
lcd_delay=FF
lcd_backlight=FF
lcd_offs[0]=FF
lcd_offs[1]=FF
lcd_offs[2]=FF
lcd_offs[3]=FF
lcd_default_view=00
###########################################################
#
# Triggers, HW determines VR or Hall
# software defines how it reacts
#
# The ITB GRM car uses a 4 window hall sensor for a trigger
#
# ========== 4 WINDOW HALL SENSOR ====================
#
# ======Primary_Trigger ====================
# FE: Rising Edge trigger
# FF: Falling Edge trigger
# 01: Multi-tooth configuration
primary_trigger=FE # Rising edge Hall sensor
# --- tooth_wheel: Used for multi-tooth wheels (total # of teeth)
tooth_wheel = 00 # not used in a basic coil type trigger aka DummyIgnition
# --- NEED A LITTLE HELP HERE
tooth_wheel_twidth1=06
# --- trigger_tooth:Used for multi-tooth wheels (Tooth that triggers event)
trigger_tooth = 00 # not used in basic coil type trigger aka DummyIgnition
# NOTE: ALL TRIGGERS below here not used in coil type trigger
# ========== NOT USED [Example 60-2 wheel & cam sync config?] ====================
# ======Secondary_Trigger ====================
# FE: Rising Edge trigger
# FF: Falling Edge trigger
# 01: Multi-tooth configuration
# ??: Cam Sync setup?
secondary_trigger=FE # Rising edge Hall sensor -- NOTE: GRM car doesnt have this HW populated
# --- another_trigger_tooth: NEED HELP HERE. guessing secondary better grouping would be inorder
another_trigger_tooth=1E
# --- NEED A LITTLE HELP HERE
tooth_wheel_twidth2=12
# --- this is for folks with a cam Sync
cam_sync_r_edge_phase=FF
cam_sync_f_edge_phase=FF
reset_engphase_after=FF
###########################################################
# MCELL's Trigger setup, using a 60-1 VR wheel
# Triggers, HW determines VR or Hall
# software defines how it reacts
# ======Primary Trigger ====================
#primary_trigger=01
#tooth_wheel=3A
#trigger_tooth=10
# ======Secondary Trigger ====================
#secondary_trigger=FF
#another_trigger_tooth=1E
#crank_minper=50
#tooth_wheel_twidth1=06
#tooth_wheel_twidth2=12
#cam_sync_r_edge_phase=FF
#cam_sync_f_edge_phase=FF
#reset_engphase_after=FF
###########################################################
#
# Ingition stuff
#
ign_tdcdelay=60 # 96 degrees BTDC
# GRM car uses BOSCH-008 Module so Dwell is done in that IGBT module
ign_dwell14=26
ign_dwell6=32
ign_crank_advance=20 # ignition advance at cranking (8 deg) [0.25crankdeg]
ign_out=71 # Dummy ignition
# at least 0..ignchmax index of h[2] must be filled in
ignchmax=03
engine_off_delay=08
###########################################################
#
# Fuel Pump Control
#
# NOTE: GRM car uses stock VW fuel pump relay.
# it does this function automatically
# --- It primes the system at startup
# --- It runs as long as the coil is firing
# --- It stops if the coil signal goes away
# Ahh the beauty of an A1 VW fuel pump relay
pump_on_mintime=10
# do you have a free injector driver to drive the fuelpump relay?
# TODO: select another channel (eg. from P259 ) if no
# or set last element of h[0]
# or disable with FF (but always-ON pump is dangerous, don't do that)
fuelpump_channel=70
###########################################################
#
# second stage of injectors
#
# NOTE: GRM not using, A description of use would be nice
inj_stage2_rate=FF
inj_stage2_start_tps=FF
inj_stage2_start_map=FF
###########################################################
#
# Anti-lag system
#
# NOTE: GRM not using, A description of use would be nice
als_lowrpm=FF
als_maxtps=FF
als_ignretard=FF
als_rich=FF
###########################################################
#
# Misc outputs (WOT & RPM, WOT, RPM, channel definition)
#
# FF disables the outputs
# GRM needs/wants:
# WOT & RPM( 4000RPM < X <7200RPM ) switched ground for relay (nitrous activation)
# RPM ( >7000 RPM) Switched ground for SuperBright LED (SHIFT LIGHT)
# RPM ( >rev_limit(7500 RPM) )Switched ground for SuperBright LED (REV Limiter)
#
# ============== Misc 1 output =================
misc1out_minrpm=FF
misc1out_maxrpm=FF
misc1out_mintps=FF
misc1out_maxtps=FF
misc1out_minmap=FF
misc1out_maxmap=FF
misc1out_channel=FF
# ============== Misc 2 output =================
misc2out_minrpm=FF
misc2out_maxrpm=FF
misc2out_mintps=FF
misc2out_maxtps=FF
misc2out_minmap=FF
misc2out_maxmap=FF
misc2out_channel=FF
# ============== Channel Select =================
act_wot_rpm=FF
act_wot_channel=C0
act_rpm_rpm=FF
act_rpm_channel=FF
###########################################################
#
# Exhaust Gas Temperature
#
# NOTE: GRM not using, A description of use would be nice
egt1_cal=40
egt1_offs=00
###########################################################
#
# Boost Controller
#
# NOTE: GRM not using, A description of use would be nice
boost_conf=00
boost_targetoffs=00
boost_minpressure=FF
boost_pid_kp=20
boost_pid_ki=80
boost_pid_kd=01
boost_pid_ilimit=FF
boost_channel=FF
###########################################################
#
# Water pump Controller
#
# NOTE: GRM not using, A description of use would be nice
water_pump_temp=00
hybrid_rpm_a=00
hybrid_rpm_m=00
water_pump_hyst=00
water_pump_channel=FF
End Config.txt
--------------------------------------------------------------------------------
Tables.txt is not commented as well yet.
Begin Tables.txt
# Injector map
j[0]=667F 667F 6736 697F 6E7F 717F 717F 737F
j[1]=677F 6859 6B7F 6F7F 757F 797F 7A7F 797F
j[2]=687F 6C7F 717F 787F 837F 887F 867F 827F
j[3]=6F7F 717C 797F 847F 917F 987F 987F 927F
j[4]=7B7F 7F7F 847F 8D7F 9B7F A47F A87F A17F
j[5]=827F 837F 8C7F 937F A87F B37F B958 B37F
j[6]=867F 8B7F 937F 9C7F AF7F B87F BF7D BE7F
j[7]=877F 8CB0 967F A07F B07F BA7F C57F C27F
# NA
k[0]=14 1E 28 32 3C 4B 5A 69
r[0]=05 0A 0F 14 1E 28 32 40
# lambda correction map
l[0]=45 38 38 36 34 34 34 34
l[1]=38 38 38 38 36 36 36 36
l[2]=38 38 38 38 38 38 38 38
l[3]=38 38 38 38 38 38 38 38
l[4]=38 38 41 47 4F 4F 4F 4F
l[5]=45 45 4F 59 59 59 59 59
l[6]=6A 6A 6A 6A 6A 6A 6A 6A
l[7]=6A 6A 6A 6A 6A 6A 6A 6A
# Fero said that max l=0x5c (NA) is too rich. So he set it for 0x6A (even more rich :-)
# ingition map
n[0]=3C 3C 50 77 A0 B4 B4 B4
n[1]=3C 3C 50 78 A0 B1 B2 B1
n[2]=3C 3C 50 77 99 AA AB A9
n[3]=3C 3C 50 76 95 A1 A2 A1
n[4]=3C 3C 50 75 8D 99 9B 9A
n[5]=3C 3C 50 6F 83 8E 8F 8F
n[6]=3C 3C 50 67 7A 81 83 84
n[7]=3C 3C 50 5F 6F 78 78 78
# injector sequence
# maskconfig.alternate elements are used
# (going reverse order, last element is looked up first).
# FETs are numbered 01,02,04,08,10,20,40,80.
#
# Injectors Populated:
#### INJA[01, EC36p07]
#### INJB[02, EC36p19]
#### INJD[08, EC36p20]
#### INJG[40, EC36p06]
# LSB fired first
# this fires them in batch mode A&B and D&G
h[0]=03 48 00 00 00 00 00 <for fuelpump_channel=70 here goes injmask for fuelpump relay>
# NOT used Obsolete
h[1]=00 00 00 00 00 00 00 00
# Ingition Driver
# Fire the one installed
#IGNition Drivers Installed
# DR_00[h[2] = 00, EC36p35]
# DR_01[h[2] = 01, EC36p33]
# DR_02[h[2] = 02, EC36p34]
# DR_03[h[2] = 03, EC36p36]
# using DR_03 just to show where it goes, not that it has to be this one
h[2]=03 03 03 03 03 03 03 03
# wasted spark would look like
#h[2]=01 02 01 02 01 02 01 02
# chris G's notes:
# third line contains the ignition sequence, each element
# represents the bitnumber of the p259 output going to coil
# we start at the end (ignchmax) and work our way back
# fire igbts 07 for all events please (single coil firing through distributor)
#-----------these are for something else
b[0]=28 30 38 40 48 50 58 60
t[0]=20 40 17 80 A0 C0 E0 FF
End tables.txt