DSM/ECU: Difference between revisions

This is the symbolic and commented source code for the DSM E931
and E932 ECU. To assemble "standard_E932_E931_source.asm",
download the telemark assembler TASM from http://home.comcast.net/~tasm/ to the same directory and execute asm.bat from the DOS prompt.
The assembler will produce two files: standard_E932_E931_source.lst
is a line by line listing of the assembly with addresses while standard_E932_E931_source.obj is the 32KB binary image to burn
on EPROM. Default setting produces the E931 standard binary image
Required file, not provided (from http://home.comcast.net/~tasm/): TASM.EXE, Version 3.2
Contents: standard_E932_E931_source.asm
Assembly source file for the E931/E932. See notes at the beginning of that file for more details. Default setting produces the standard E931 EPROM image.
asm.bat
Batch file to assemble standard_E932_E931_source.asm
standard_E931.bin
Binary file read from an actual E931 EPROM. Assembly of standard_E932_E931_source.asm using the "E931" setting should produce an identical binary.
standard_E932.bin
Binary file read from an actual E932 EPROM. Assembly of standard_E932_E931_source.asm using the "E932" setting should produce an identical binary.
standard_E931.lst
Assembly listing file for the standard E931, usefull if you just want to edit an EPROM image without assembly..
standard_E932.lst
Assembly listing file for the standard E932, usefull if you just want to edit an EPROM image without assembly..
tasm6111.tab
TASM compatible opcodes for the E931/E932 ECUs. Works with the provided source files. Might be incomplete if you want to use something not already used by the standard code...
Christian [email protected]

http://www.bcdsm.org/forum/index.php?topic=11843.0
- https://web.archive.org/web/20050301180032/http://www.ece.ubc.ca/~elec259/Static/datasheets/M68HC11RM.pdf
- https://web.archive.org/web/20091104122431/http://courses.ece.ubc.ca/259/Static/datasheets/InstructionSet.pdf

MH6111 Instruction Set

https://www.scribd.com/doc/293622595/MH6111-OPCODES-1

Procs Docs Tossed

https://www.3si.org/threads/decoded-timing-maps-from-factory-ecu.193625/page-5#post-2383037

Related?

Disassembler

Suzuki ECU

(Uses MH6X11)

Mazda ECU

https://mazda626.net/topic/13794-ecus-and-eproms-it-friggin-works/?page=3

Mods

Dis/assembly

Documentation
http://www.cpcalive.com/docs/TASMMAN.HTM

https://web.archive.org/web/20201111025111/http://www.cpcalive.com/docs/TASMMAN.HTM
Download
https://lpg.ticalc.org/archives/files/fileinfo/250/25051.html
GIT
https://github.com/spotco/TI-asm/tree/master/tasm
Linux (TASM 3.1)
http://www.filegate.net/pdn/pdnunix/tasm31.rar^[6]
OSX Port
http://www.hinton-instruments.co.uk/archive/macide.html^[7]

PCB

http://www.galantvr4.org/ubbthreads/showflat.php?Board=UBB3&Number=370403&page=5&fpart=1

ECU power

https://www.dsmtuners.com/threads/1g-basic-ecu-mpi-circuit-function.435961/

Standalones

https://performanceecu.com/blog/ecu-comparison-chart-for-4g63-turbo-dsm/

AEM

https://www.jegs.com/InstallationInstructions/0/017/017-30-1300.pdf

Megasquirt

Speeduino

Link ECU (VR4LINK)

Stims

Speed Density

Kim Hulkkonen

SwD-Swede Density

https://www.dsmtuners.com/threads/swede-density-for-tunerpro.530446/

ds-map

DS-MAP V1 - Nick Sanders (pudhed)
Jackal (V2) - Curtis Hacker (hakcenter)
Werewolf (v3) - Curtis Hacker

https://web.archive.org/web/20150522015900/http://forums.ds-map.net/store/jackal-vs-werewolf

Geekmapped

~~http://geekmapped.com/~~
- https://web.archive.org/web/20160306074252/http://geekmapped.com:80/

Knock

Bill Sundahl - [email protected]

https://web.archive.org/web/20070408152424/http://home.netcom.com:80/~bsundahl/

Pinout, functionality

Phantom knock

https://web.archive.org/web/20071016060058/http://users.wpi.edu/~ktarry/dsmtech/phantomknock.html

ECU Stickers

There are three parts of the ECU label stickers to make a point of:

The Mitsubishi Motors (MMC) number
- Starts with "MD" or "MR"
The Mitsubishi Electric (MEC) number
- Usually starts with "E2T" on ECUs
- Usually starts with "G1T" or "X4T" on TCUs
The last letter of the MEC number
- E = eprom
- T = one time programmable (otp)
- M = masked
- A = ???
- " " (blank) = maybe eprom for 90 ecus

Idle Adjustment

Maybe should be in another article?

https://www.sixsigmatuning.com/dsm-idle-control

Notes

[1] 
https://pastebin.com/21Fk0Gwb
https://pastebin.com/raw/21Fk0Gwb

https://web.archive.org/web/20210425140243/https://pastebin.com/raw/21Fk0Gwb

[2] ttps://pastebin.com/21Fk0Gwb
https://pastebin.com/raw/21Fk0Gwb

https://web.archive.org/web/20210425140243/https://pastebin.com/raw/21Fk0Gwb

[3] ttps://pastebin.com/raw/21Fk0Gwb

[4] ttps://web.archive.org/web/20210425140243/https://pastebin.com/raw/21Fk0Gwb

[2] 
https://www.evoscan.com/technical-vehicle-manuals/150-mitsubishi-ecu-numbers

[6] ttps://www.evoscan.com/technical-vehicle-manuals/150-mitsubishi-ecu-numbers

[3] 
https://web.archive.org/web/20010215033806/http://www.castelli-italtec.com/docs/ea_mitsubishi.htm

[8] ttps://web.archive.org/web/20010215033806/http://www.castelli-italtec.com/docs/ea_mitsubishi.htm

[4] 
https://www.evoscan.com/technical-vehicle-manuals/150-mitsubishi-ecu-numbers

[10] ttps://www.evoscan.com/technical-vehicle-manuals/150-mitsubishi-ecu-numbers

[5] ttps://www.club3g.com/threads/general-questions-about-2001-montero-sport-6g72-rom.159492/post-3291599

[6] 
https://retrocomputing.stackexchange.com/a/1547

http://www.filegate.net/pdnunix/

[13] ttps://retrocomputing.stackexchange.com/a/1547

[14] ttp://www.filegate.net/pdnunix/

[7] 
https://retrocomputing.stackexchange.com/a/1391

[16] ttps://retrocomputing.stackexchange.com/a/1391

[1]

[2]

[3]

[4]

[5]

[6]

[7]

@@ Line 1: / Line 1: @@
+==Subpages==
+[[DSM/ECU/Pretty disassembly notes]]<ref>
+* https://pastebin.com/21Fk0Gwb
+** https://pastebin.com/raw/21Fk0Gwb
+** https://web.archive.org/web/20210425140243/https://pastebin.com/raw/21Fk0Gwb
+</ref>
+[[DSM/ECU/ECU Numbers]] <ref>
+* https://www.evoscan.com/technical-vehicle-manuals/150-mitsubishi-ecu-numbers
+</ref>
+[[DSM/ECU/ROMS]]
+[[DSM/ECU/JE331B988B]]
+[[DSM/ECU/TMP76xxx MH6xxx]]
+[[DSM/ECU/Reverse Engineering]]
+[[DSM/ECU/EB20_TunerPro_Export]] (1G DSM NA/NT 4G63)
 ==General==
 * http://dsmecu.com/index.php
 * <s>http://dsm-ecu.com</s>
-- https://web.archive.org/web/20050427181808/http://dsm-ecu.com/
+** https://web.archive.org/web/20050427181808/http://dsm-ecu.com/
+===ECU troubleshooting and daughterboard [RUS]===
+* https://autodata.ru/article/praktika_remonta/mitsubishi_blok_upravleniya/
+===Photos===
+* http://simon.chi.il.us/ECU/Stock/
+* https://www.3si.org/threads/research-post-your-ecu-pics.442851/
+* https://www.3si.org/threads/dsm-link-for-the-3-s-use-your-stock-ecu-to-tune.440062/
+* https://www.3si.org/threads/3000gt-eprom-conversion-board.478086/
+===DSM-ECU Yahoo! Group Archives===
+* <s>http://autos.groups.yahoo.com/group/dsm-ecu/</s>
+** https://web.archive.org/web/*/http://autos.groups.yahoo.com/group/dsm-ecu/*
+** https://web.archive.org/web/*/http://autos.groups.yahoo.com/group/dsm-ecu/files/*
+* <s>http://groups.yahoo.com/group/dsm-ecu/</s>
+** https://web.archive.org/web/*/http://groups.yahoo.com/group/dsm-ecu/*
+** https://web.archive.org/web/*/http://groups.yahoo.com/group/dsm-ecu/files/*
-* http://tunerpro.net/download/bins/DSM/
+* <s>https://groups.yahoo.com/neo/groups/dsm-ecu/</s>
+** https://web.archive.org/web/*/https://groups.yahoo.com/neo/groups/dsm-ecu/*
+** https://web.archive.org/web/*/https://groups.yahoo.com/neo/groups/dsm-ecu/files/*
-ECU troubleshooting and daughterboard [RUS]
+* https://web.archive.org/web/20050924115927/http://dsm-ecu.com/archive/mail2.html
-* https://autodata.ru/article/praktika_remonta/mitsubishi_blok_upravleniya/
+** https://web.archive.org/web/*/http://dsm-ecu.com/archive/*
 ==ECU numbers==
+* http://simon.chi.il.us/ECU/ECUID.html
+* https://tech.mirage-performance.com/ECU/index.html
 * https://www.evoscan.com/technical-vehicle-manuals/150-mitsubishi-ecu-numbers
-* https://tech.mirage-performance.com/ECU/index.html
-* http://simon.chi.il.us/ECU/ECUID.html
 * http://ecmoutlet.com/ecm_forum.html
 * http://ecmoutlet.com/ecm_forum.html#p13
+* http://www.vfaq.com/mods/ECUs.html
+===EDM ECUs===
+{|class="wikitable"
+!|Model
+!|MMC #
+!|MEC #
+|-
+|Eclipse I 2.0 16v D22A (90-94)
+|MD169144
+|E2T36583
+|-
+|Eclipse II 2.0 16v D30 (95-96)
+|MD327134
+|E2T61680
+|-
+|" (97-99)
+|MD334797
+|E2T61685
+|}<ref>
+* https://web.archive.org/web/20010215033806/http://www.castelli-italtec.com/docs/ea_mitsubishi.htm
+</ref>
+See Also: [[DSM/ECU/ECU Numbers]]<ref>
+* https://www.evoscan.com/technical-vehicle-manuals/150-mitsubishi-ecu-numbers
+</ref>
 ==EPROM images==
+* http://tunerpro.net/download/bins/DSM/
+* http://www.tunerpro.net/downloadBinDefs.htm#DSM
 * http://www.lilevo.com/mirage/ECU%20editting,%20MAF(T),%20Eprom,%20Map,%20Tuning,%20Pinouts,%20Standalone%20etc/EPROM%20EDITTING%20ECU%20and%20%20MAF%20FILES/
-* http://www.tunerpro.net/downloadBinDefs.htm#DSM
+* http://www3.sympatico.ca/tchaad/
+* https://web.archive.org/web/*/http://evoscan.com/roms/mitsubishi/download/*
+* https://www.mirage-performance.com/tech/ECU/Code/
+* https://zarnochwf1.com/mitsubishi/roms/<ref>https://www.club3g.com/threads/general-questions-about-2001-montero-sport-6g72-rom.159492/post-3291599</ref>
+==Input/Output==
+* http://www.technomotive.com/faq/dsmio.htm
+===Sensors===
+* https://web.archive.org/web/20090723070534/http://geocities.com/MotorCity/Downs/7678/dsmtests.html
+====ISC====
+* https://web.archive.org/web/20170816030254/http://dsmisc.com/dsmweb-dw/index.html#
+* https://www.dsmtalk.com/threads/ic105-burning-exploding-1g-dsm-ecu.240681/
+====Alternative pinout====
+* https://www-dsm--club-org.translate.goog/forum/showpost.php?s=3a99c9d08c44ecaba31d99162bb39ab9&p=31182&postcount=6&_x_tr_sl=ru&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=ajax,nv,elem&_x_tr_sch=http
+==Registers==
+* http://forums.openecu.org/viewtopic.php?f=55&t=643&p=5212&hilit=MH6111#p5212
+** https://web.archive.org/web/20210603140112/http://forums.openecu.org/viewtopic.php?f=55&t=643&p=5212&hilit=MH6111
 ==Editing notes==
 * http://www.lilevo.com/mirage/dsmromedit.htm
 * https://sites.google.com/site/90tsis/home/1g-dsm/code-editing
-- https://web.archive.org/web/20201030203430/https://sites.google.com/site/90tsis/home/1g-dsm/code-editing
+** https://web.archive.org/web/20201030203430/https://sites.google.com/site/90tsis/home/1g-dsm/code-editing
+* https://web.archive.org/web/20071219183812/http://users.wpi.edu:80/~ktarry/dsmtech/
+* https://pdfslide.net/documents/dsm-ecu-extended-map-guide.html
+* https://esm.logic.net/public/dsm/ecu-flashing.html
+* http://www.technomotive.com/prod/eprom/eprom.htm
+* http://www.tunerpro.net/tutorials/CreatingECUs.htm
 ==E931 disassembly with comments==
 * https://evoecu.logic.net/mirror/cpudocs/E931/
-- https://web.archive.org/web/20121121193031/https://evoecu.logic.net/mirror/cpudocs/E931/
+** https://web.archive.org/web/20121121193031/https://evoecu.logic.net/mirror/cpudocs/E931/
+==2G ECU==
+* http://www.ceddy.us/
+** https://web.archive.org/web/20210119182437/http://www.ceddy.us/
+===ROM Image===
+EPROM:
+* https://web.archive.org/web/20210119183047/http://ceddy.us/95-eprom/
-===More decompile===
+XDF:
-* https://pastebin.com/21Fk0Gwb
+* https://web.archive.org/web/20070819124620/http://www.ceddy.us/EB23C_V2.XDF
-* https://pastebin.com/raw/21Fk0Gwb
-- https://web.archive.org/web/20210425140243/https://pastebin.com/raw/21Fk0Gwb
-http://www.ceddy.us/
+* https://evoecu.logic.net/mirror/2g/ceddymod/
-* https://web.archive.org/web/20210119182437/http://www.ceddy.us/
 ==Processor info==
 * http://www.rhinopower.org/76xxx/76xxx.html
-- https://web.archive.org/web/20160828201746/http://www.rhinopower.org/76xxx/76xxx.html
+** https://web.archive.org/web/20160828201746/http://www.rhinopower.org/76xxx/76xxx.html
+* https://rhinopower.activeboard.com/t30481695/software-tools/
+* https://rhinopower.activeboard.com/forum.spark?aBID=133095&topicID=30481695&p=3
+* https://rhinopower.activeboard.com/t66419432/76c55-mh6311-information
+* https://web.archive.org/web/20081023112442/http://www.btinternet.com/~j_holland/mitsu/mitsu.html
-* https://rhinopower.activeboard.com/t30481695/software-tools/
+===Docs===
+* http://www.rhinopower.org/76xxx/76xxx.html
+** https://web.archive.org/web/20210425131028/http://www.rhinopower.org/76xxx/76xxx.html
+* http://www.rhinopower.org/76xxx/docs/76C55_Register_Map.txt
+** https://web.archive.org/web/20201205013950/http://www.rhinopower.org/76xxx/docs/76C55_Register_Map.txt
+* https://rhinopower.activeboard.com/t30481695/software-tools/?page=1&w_r=1619821221#comment-45660411
+** http://www.rhinopower.org/mods/docs/Using_MiniIDE.doc
+*** https://web.archive.org/web/20161022073036/http://www.rhinopower.org/mods/docs/Using_MiniIDE.doc
+** https://web.archive.org/web/20070102011556/http://home.comcast.net/~tasm/tasmman.htm
+** https://web.archive.org/web/20151002025803/http://home.comcast.net:80/~tasm/tasm32.zip
+** https://www.keil.com/download/docs/10.asp
+*** https://web.archive.org/web/20210426014355/https://www.keil.com/download/docs/10.asp
+** https://web.archive.org/web/20070102062946/http://www.keil.com/download/files/mot2bin.zip
+** https://www.scribd.com/doc/59831473/
+===Toshiba Microprocessors===
+* https://www-shmj-or-jp.translate.goog/museum2010/exhibi739.htm?_x_tr_sch=http&_x_tr_sl=ja&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=ajax,nv,elem
+<pre style="white-space: pre;">
+This is the symbolic and commented source code for the DSM E931
+and E932 ECU. To assemble "standard_E932_E931_source.asm",
+download the telemark assembler TASM from http://home.comcast.net/~tasm/ to the same directory and execute asm.bat from the DOS prompt.
+The assembler will produce two files: standard_E932_E931_source.lst
+is a line by line listing of the assembly with addresses while standard_E932_E931_source.obj is the 32KB binary image to burn
+on EPROM. Default setting produces the E931 standard binary image
+Required file, not provided (from http://home.comcast.net/~tasm/): TASM.EXE, Version 3.2
+Contents: standard_E932_E931_source.asm
+Assembly source file for the E931/E932. See notes at the beginning of that file for more details. Default setting produces the standard E931 EPROM image.
+asm.bat
+Batch file to assemble standard_E932_E931_source.asm
+standard_E931.bin
+Binary file read from an actual E931 EPROM. Assembly of standard_E932_E931_source.asm using the "E931" setting should produce an identical binary.
+standard_E932.bin
+Binary file read from an actual E932 EPROM. Assembly of standard_E932_E931_source.asm using the "E932" setting should produce an identical binary.
+standard_E931.lst
+Assembly listing file for the standard E931, usefull if you just want to edit an EPROM image without assembly..
+standard_E932.lst
+Assembly listing file for the standard E932, usefull if you just want to edit an EPROM image without assembly..
+tasm6111.tab
+TASM compatible opcodes for the E931/E932 ECUs. Works with the provided source files. Might be incomplete if you want to use something not already used by the standard code...
+Christian [email protected]
+</pre>
+* http://www.bcdsm.org/forum/index.php?topic=11843.0
+** https://web.archive.org/web/20050301180032/http://www.ece.ubc.ca/~elec259/Static/datasheets/M68HC11RM.pdf
+** https://web.archive.org/web/20091104122431/http://courses.ece.ubc.ca/259/Static/datasheets/InstructionSet.pdf
+===MH6111 Instruction Set===
+* https://www.scribd.com/doc/293622595/MH6111-OPCODES-1
+===Procs Docs Tossed===
+* https://www.3si.org/threads/decoded-timing-maps-from-factory-ecu.193625/page-5#post-2383037
+===Related?===
+* https://www.physicsforums.com/threads/ic-datsheet.67692/
+* http://jeffgst.com/id20.html
+* https://ecimulti.org/
+* https://web.archive.org/web/20070821131725/http://www.dsmlink.com/faq-eprom.html
+====Disassembler====
+* https://web.archive.org/web/*/http://www.16paws.com:80/ECU/*
+* https://web.archive.org/web/20030316084747/http://www.16paws.com/ECU/DASMx/
 * https://web.archive.org/web/20140306212142/http://www.16paws.com/ECU/DASMxx/DASMx.htm
-==Board parts==
+====Suzuki ECU====
-* https://www.icbreakout.com/products/plcc-68-breakout-board-24-23x24-23-mm-1-27-mm
+(Uses MH6X11)
-* https://www.adapt-plus.com/products_html/APW9327-ZC158.html
+* https://fixkick.com/ECU/transistors.html
-* https://www.adapt-plus.com/resources/assets/images/pdf/catalogpdf_51ba069587b6f.pdf
+* https://fixkick.com/ECU/substitutes/M526x-tutes.html
-* https://ftyracing.com/product/1g-dsm-ecu-breakout-board/
-* https://ftyracing.com/product/2g-dsm-evo8-ecu-breakout-board/
-===Chips===
-====ISC drivers====
+====Mazda ECU====
-* http://dsmlink.com/wiki/driver01
+* https://mazda626.net/topic/13794-ecus-and-eproms-it-friggin-works/?page=3
-* https://www.u-obd.com/product/m5269l/
-* https://www.alldatasheet.com/datasheet-pdf/pdf/936/MITSUBISHI/M5269L.html?
-====MH6111 Processor====
+===Mods===
-* C$ 12.77 | 5piece MH6111-E827 MH6111 PLCC-68 In Stock
+* https://web.archive.org/web/20151021233215/http://www.ilostmymind.com/ECU/DSM
-* https://a.aliexpress.com/_mtLwCGD
+* https://web.archive.org/web/20151023035547/http://www.ilostmymind.com:80/ECU/DSM/progra.txt
+* https://web.archive.org/web/20151023035522/http://www.ilostmymind.com:80/ECU/DSM/E931C6F5hex.html
+==Dis/assembly==
+* Documentation
+*: http://www.cpcalive.com/docs/TASMMAN.HTM
+*: https://web.archive.org/web/20201111025111/http://www.cpcalive.com/docs/TASMMAN.HTM
+* Download
+*: https://lpg.ticalc.org/archives/files/fileinfo/250/25051.html
+* GIT
+*: https://github.com/spotco/TI-asm/tree/master/tasm
+* Linux (TASM 3.1)
+*: http://www.filegate.net/pdn/pdnunix/tasm31.rar<ref>
+* https://retrocomputing.stackexchange.com/a/1547
+* http://www.filegate.net/pdnunix/
+</ref>
+* OSX Port
+*: http://www.hinton-instruments.co.uk/archive/macide.html<ref>
+* https://retrocomputing.stackexchange.com/a/1391
+</ref>
+==PCB==
+* http://www.galantvr4.org/ubbthreads/showflat.php?Board=UBB3&Number=370403&page=5&fpart=1
+==ECU power==
+* https://www.dsmtuners.com/threads/1g-basic-ecu-mpi-circuit-function.435961/
 ==Standalones==
+* https://performanceecu.com/blog/ecu-comparison-chart-for-4g63-turbo-dsm/
 ===AEM===
@@ Line 70: / Line 261: @@
 ===Megasquirt===
 * https://www.diyautotune.com/support/tech/hardware/diypnp/available-models/#N52
+* https://www.diyautotune.com/support/tech/install/dsm/megasquirt-your-4g63/
 ===Speeduino===
@@ Line 83: / Line 275: @@
 * https://www.tmzperformance.com/shop/haltech-elite-1500-dbw-ecu-with-mitsubishi-4g63-fully-terminated-harness-kit-suits-1g-cas-ev1-flying-lead-ignition-harness-ht-150930/
-==Pretty disassembly notes==
+===ECU+===
+* http://www.ecuplus.com/forums/viewforum.php?f=4
+===rusEFI===
+* https://rusefi.com/forum/viewtopic.php?f=2&t=622
+** https://github.com/rusefi/rusefi/wiki
+===PowerFC===
+* https://www.apexi-usa.com/products/power-fc-components-universal-fc-commander-oled-type
-===GENERAL NOTES===
+==Stims==
-Project started with the help of dsm-ecu Yahoo group, thanks for the great info.
+* jimStim
-Most disassembly comments in this file by Christian, christi999@hotmail.com.
+*: https://www.diyautotune.com/product/jimstim-1-5-megasquirt-stimulator-w-wheel-simulator-assembled/
+* Ardu-stim
+*: https://github.com/speeduino/Ardu-Stim
-===CPU===
+==Speed Density==
-The microcomputer chip used in the 1G DSM ECU seems to be a custom application built around the 6801 architecture, Check the 6801, 6803, 6301, 68HC11 at web sites such as alldatasheet.com, etc.
+Kim Hulkkonen
-CPU clock frequency is assumed to be 2MHz, i.e. the instructions cycle time is 0.5us.
+===SwD-Swede Density===
+* http://dsmecu.com
+* http://kaxlon.com
+* https://github.com/KaxLon
+* https://www.facebook.com/swededensity/
+* <s>http://www.wiki.swededensity.com/</s>
+** https://web.archive.org/web/20160620033429/http://wiki.swededensity.com/index.php?title=Main_Page
+* <s>http://swededensity.com/</s>
+** https://web.archive.org/web/20151123231211/http://swededensity.com/
+* https://www.youtube.com/playlist?list=PLVqF6cy1_ujiGSEMi2GLMuIglT08QP9Fp
-===Assembly binary verifications===
+* https://www.dsmtuners.com/threads/swede-density-for-tunerpro.530446/
-The 2 binaries produced without any customization ("enableCustom" definition is commented-out) have been verified to be identical to the E931 and E932 eprom images at hand.
-To check the validity of symbolic substitution, the entire code section and tables
+===ds-map===
-was offset by $0200 using "codeOffset" and the corresponding binary was tested on
+* <s>http://forums.ds-map.net</s>
-my car (E932) without any problems for weeks. Additional tests were conducted by
+** https://web.archive.org/web/20180322020233/http://forums.ds-map.net/
-writing inline code in several part of the code and no adverse effect was ever noted.
+* <s>http://wiki.ds-map.net/</s>
+** https://web.archive.org/web/20170620082922/http://wiki.ds-map.net/
-To check the validity of symbolic substitution for ram addresses, every ram location
+* DS-MAP V1 - Nick Sanders (pudhed)
-starting at $0057 was offset by 1 (i.e. temp1 was at memory address $58 instead of
+* Jackal (V2) - Curtis Hacker (hakcenter)
-$57, etc) and the corresponding binary was tested on my car (E932) without any problems
+* Werewolf (v3) - Curtis Hacker
-during car startup and engine revving. No additional test performed.
-This means that the code can be modified inline and in most cases, ram memories can
+* https://web.archive.org/web/20150522015900/http://forums.ds-map.net/store/jackal-vs-werewolf
-be moved around by changing the label addresses. Note however that some groups of
-ram memories have to be moved in blocks because the code assumes they are contiguous.
-e.g. the temp1 to temp9 variables, the inj1_offT, inj3_offT, inj4_offT and inj2_offT
-variables, etc.
-===Ram memory===
+===Geekmapped===
-;*    Memory from $0040 to $01bf is backed-up by battery, meaning it is preserved when the
+* <s>http://geekmapped.com/</s>
-;*    ECU is powered-off as long as battery power is supplied. However, memory from $0057 to
+** https://web.archive.org/web/20160306074252/http://geekmapped.com:80/
-;*    $0190 is cleared to 0 by the code every time the ECU is powered-on. That can be however
-;*    changed by modifying the code... Battery backup was checked by disabling memory reset using
-;*    the "noRamReset"  and then check ram memory at $018f to see if it gets preserved after power
-;*    off/on cycle, and it did. During the test, $018f was used as a distance counter using
-;*    the reed switch.
-;*
-===Comments===
-;*   Some comments use variable names quite loosly. For instance, multi-byte variables
-;*   such as [airCnt0:airCnt1:airCnt2] might be refered to as only airCnt0. airCnt0
-;*   might therefore refer to the single byte airCnt0, to the 16 bit value
-;*   [airCnt0:airCnt1] or to the 24 bit complete variable, depending on the context.
-;*   Comments were added incrementally as my knowledge of code and variables
+==Knock==
-;*   increased. As new knowledge was learned, old comments were updated or corrected
+Bill Sundahl - bsundahl@ix.netcom.com
-;*   as much as possible but not necessarily all of them, so beware... In the end, the
+* https://web.archive.org/web/20070408152424/http://home.netcom.com:80/~bsundahl/
-;*   code is the only truth... Some small areas of the code were also never completly
-;*   understood as a general understanding was reached and I did not care to go further
-;*   e.g. airflow sensor active filter reset
-===Opcodes===
+Pinout, functionality
+* http://stealth316.com/misc/knock-chip.doc
+*http://stealth316.com/misc/knock-board.txt
-* cmpd: cmpd1 is used for some addressing modes instead of cmpd since TASM does not support unusual mitsubishi ECU cmpd opcodes..
+Phantom knock
-* brclr: branch if ALL the given bits are clear
+* https://web.archive.org/web/20071016060058/http://users.wpi.edu/~ktarry/dsmtech/phantomknock.html
-* brset: branch if ANY of the given bits are set (as opposed to usual implementation of ALL bits set...)
-* The addressing mode using Y indexing also implicitly modifies the y register. It seems that y is increased by 1 or 2 depending whether the instruction is a 8 bit or 16 bits operation... The following cases are confirmed
-  cmpa $00,y  -> y = y + 1
+==ECU Stickers==
-  cmpb $00,y  -> y = y + 1
+There are three parts of the ECU label stickers to make a point of:
-  ldaa $00,y  -> y = y + 1
+* The Mitsubishi Motors (MMC) number
-  suba $00,y  -> y = y + 1
+** Starts with "MD" or "MR"
-  ldx  $00,y  -> y = y + 2
+* The Mitsubishi Electric (MEC) number
-  std  $00,y  -> y = y + 2
+** Usually starts with "E2T" on ECUs
+** Usually starts with "G1T" or "X4T" on TCUs
+* The last letter of the MEC number
+** E = eprom
+** T = one time programmable (otp)
+** M = masked
+** A = ???
+** " " (blank) = maybe eprom for 90 ecus
-===Telemark assembler===
+==Idle Adjustment==
-This assembler does not provide warning messages when code assembles to
+Maybe should be in another article?
-;*    the same memory space, e.g. you insert code in the middle of the file
+* https://www.sixsigmatuning.com/dsm-idle-control
-;*    which result in the rest of the code to be offset by N bytes. This
-;*    results in the interrupt vector table to be overwritten. No warning
-;*    is given. The only way to know about it is to manually check the listing
-;*    file produced by the assembler. Check that the buffer space between
-;*    sections is all "$ff". Check that there is no code spilage over .org
-;*    statements. Check that the address space does not exceed $ffff. Use the
-;*    "codeOffset" at the beginnng of the file to correct the problem.
-===Fuel injector and coil power transistor control===
+==See Also==
-Although the 4 fuel injectors and the 2 coil power transistors are mapped to
+* [[DSM/DIY ECU]]
-;*    regular ports (port1, port2 and port5) which can be read to know the current
-;*    state of these outputs, they are also mapped in hardware to output compare
-;*    registers in order to activate or deactivate them at specific time instants.
-;*    Writing to the ports might therefore not work unless the output compare
-;*    configuration registers are changed to disable harware control of these
-;*    outputs. This might not be possible unless an "output enable" bit exists,
-;*    which I haven't found at this point...
-;*    Another way to activate or deactivate them would be to use the output
-;*    compare registers (as currently done by the ECU code) and provoke an
-;*    immediat output change.
-Here is my current understanding of how injector scheduling works, not
+==Notes==
-;*    everything is clear to me so don't take this as gospel...:
+<references/>
-;*    The output compare registers for the fuel injectors seem to be at least double
-;*    buffered and maybe triple buffered (see schedInjSim routine). That means that
-;*    up to 3 different output compare values can be written to t1_outCmpWr and t2_outCmpWr
-;*    to activate or deactivate the injectors at those time instants. Each time a value
-;*    is written to t1_outCmpWr or t2_outCmpWr, the corresponding injector state
-;*    is also internally stored. That means that to activate injector #1 at time X,
-;*    you would first reset bit 0 of t1_csr, corresponding to injector #1 and then
-;*    write X to t1_outCmpWr. You could then immediately schedule the deactivation
-;*    of injector #1 by setting bit 0 of t1_csr to 1 and then write the deactivation
-;*    time to t1_outCmpWr. When one of the output compare register stored value matches
-;*    the clock at t1t2_clk, the injector is activated/deactivated and the corresponding
-;*    interrupt routine is called (if the interrupt mask is clear...) at outCompInt1 or
-;*    outCompInt2.
-;*
-Here is my current understanding of how the coil power transistor scheduling
-;*    works, not everything is clear to me so don't take this as gospel...: t3_outCmpWr
-;*    is the output compare register used to activate or deactivate the coil power
-;*    transistors (energize the coil and provoke ignition at the specified time instants)
-;*    To energize the coil for cylinder 1 and 4 at time X you would write X to t3_outCmpWr
-;*    and reset(0) bit 2 of t3_csr0. At time X, t3_csr0.2 would be loaded into port5.1
-;*    which would energize the coil. t3_csr0.2 should not be changed until that happens.
-;*    In the code, most of the time 2 successive values (the same one) are written to t3_outCmpWr
-;*    but there are some instances where only 1 value is written. My impression is that
-;*    the first value serves to activate/deactivate the coil power transistor at the
-;*    specified instant while the second one only serves to generate an interrupt
-;*    in order to call the outCompInt3 routine. Hence when only the coil need
-;*    to be activated/deactivated without calling outCompInt3, you would only write
-;*    one value. If in addition you want to have outCompInt3 called when the coil
-;*    is energized/ignited, you would write two successive values (corresponding to the
-;*    same time...). This is all speculation of course... As for the 2 clocks at t3_clock1
-;*    and t3_clock1, I assume they are connected to the same internal clock at 250KHz
-;*    but might be input capture registers latched when one of the two output compare
-;*    at t3_outCmpWr is triggered??????? Again speculation, this is the part of the code
-;*    I understand the least...
-;*
-;*
-;
-===Timing diagram===
-* 4 cylinders = 2 rotations = 2 * 360degrees = 720 degrees
-* For sequential injection, fuel injection starts on the cas falling edge
-*  i.e. cylinder #1 injection starts at -5 BTDC of #3 TDC
-* Simultaneous injection of all 4 injectors is performed when starting to
-;*  crank or starting a cold engine or during acceleration, check the tech manual
-;*  and code for more details. Simultaneous injection starts on the 5deg BTDC
-;*  cas signal except in the case of acceleration where it starts when an
-;*  injector is deactivated and no other injector is active (i.e. at the
-;*  beginning of the time period where no injector is active)
-* Coil energization is usually scheduled (the energization time is loaded into
-;*  the output compare register, energization will occur at the specified time)
-;*  from the cas rising edge. Coil ignition can be scheduled when energization
-;*  occurs (output compare interrupt) or on the cas falling edge depending on
-;*  the desired timing. Note however that coil energization can also be scheduled
-;*  when ignition occurs on the preceeding cylinder. This would correspond to
-;*  scheduling ignition before the cas rising edge (at high rpm I assume). Coil
-;*  energization can also be scheduled on the cas falling edge when the desired
-;*  timing is high (e.g. 10deg ATDC). As this shows, there are several combinations
-;*  and the complexity of the code to handle the coil reflects that fact.
-;*
-;*
-                          No 1 TDC         No 3 TDC          No 4 TDC          No 2 TDC
-                             :                 :                 :                 :
-                    ___________                         _____
-  TDC sensor       |           |                       |     |
-  signal           |         : |               :       |     |   :                 :
-               ____|___________|_______________________|_____|________________________
-   degrees        85           55                      85   15
-  (BTDC/ATDC)                :                 :                 :                 :
-                     ______            ______            ______            ______
-  CAS sensor        |      |          |      |          |      |          |      |
-  signal            |      | :        |      | :        |      | :        |      | :
-               _____|______|__________|______|__________|______|__________|______|____
-   degrees          75     5 :       75      5 :       75      5 :        75     5 :
-   (BTDC)                    :                 :                 :                 :
-                             :                 :                 :                 :
-   No 1 cyl.     compression :   combustion    :    exhaust      :     intake      : compression
-   No 3 cyl.       intake    :   compression   :   combustion    :     exhaust     :  intake
-   No 4 cyl.       exhaust   :     intake      :   compression   :    combustion   :  exhaust
-   No 2 cyl.     combustion  :     exhaust     :    intake       :    compression  : combustion

DSM/ECU: Difference between revisions

Latest revision as of 16:10, 14 April 2024

Subpages

General

ECU troubleshooting and daughterboard [RUS]

Photos

DSM-ECU Yahoo! Group Archives

ECU numbers

EDM ECUs

EPROM images

Input/Output

Sensors

ISC

Alternative pinout

Registers

Editing notes

E931 disassembly with comments

2G ECU

ROM Image

Processor info

Docs

Toshiba Microprocessors