DSM/ECU: Difference between revisions

From Jane Hacker Wiki
Jump to navigation Jump to search
← Older edit
No edit summary
 
(127 intermediate revisions by the same user not shown)
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==
==General==
* http://dsmecu.com/index.php
* http://dsmecu.com/index.php


* <s>http://dsm-ecu.com</s>
* <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==
==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://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
* http://ecmoutlet.com/ecm_forum.html#p13
* 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==
==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.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==
==Editing notes==
Line 26: Line 117:
** 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://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==
==E931 disassembly with comments==
Line 31: Line 126:
** 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/


===More disassembly===
==2G ECU==
* https://pastebin.com/21Fk0Gwb
 
* https://pastebin.com/raw/21Fk0Gwb
* http://www.ceddy.us/
** https://web.archive.org/web/20210425140243/https://pastebin.com/raw/21Fk0Gwb
** https://web.archive.org/web/20210119182437/http://www.ceddy.us/
 
===ROM Image===
95 EPROM:
* https://web.archive.org/web/20210119183047/http://ceddy.us/95-eprom/
 
XDF:
* https://web.archive.org/web/20070819124620/http://www.ceddy.us/EB23C_V2.XDF


http://www.ceddy.us/
* https://evoecu.logic.net/mirror/2g/ceddymod/
* https://web.archive.org/web/20210119182437/http://www.ceddy.us/


==Processor info==
==Processor info==
Line 43: Line 144:
** 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/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


===Docs===
===Docs===
Line 59: Line 163:
** https://web.archive.org/web/20070102062946/http://www.keil.com/download/files/mot2bin.zip
** https://web.archive.org/web/20070102062946/http://www.keil.com/download/files/mot2bin.zip
** https://www.scribd.com/doc/59831473/
** 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;">
<pre style="white-space: pre;">
Line 91: Line 200:
===MH6111 Instruction Set===
===MH6111 Instruction Set===
* https://www.scribd.com/doc/293622595/MH6111-OPCODES-1
* https://www.scribd.com/doc/293622595/MH6111-OPCODES-1
===MH6211 Instruction Set===
{| class="wikitable"
!|Bytes
!|Code
!|A
!|B
!|Desc
|-
|00||TEST||1||*||TEST OPERATION TEST MODE ONLY
|-
|01||NOP||1||2||NO OPERATION
|-
|02||AIM DIR||3||?||AND IN MEMORY
|-
|03||OIM DIR||3||?||OR IN MEMORY
|-
|04||LSRD||1||3||LOGICAL SHIFT RIGHT DOUBLE ACCUMULATOR
|-
|05||ASLD / LSLD||1||3||ARITHMETIC / LOGICAL SHIFT LEFT DOUBLE ACC
|-
|06||TAP||1||2||TRANSFER FROM ACC A TO CONDITION CODE REGISTER
|-
|07||TPA||1||2||TRANSFER FROM CONDITION CODE REGISTER TO ACC A
|-
|08||INX||1||3||INCREMENT INDEX REGISTER X
|-
|09||DEX||1||3||DECREMENT INDEX REGISTER X
|-
|0A||CLV||1||2||CLEAR TWOS COMPLEMENT OVERFLOW BIT
|-
|0B||SEV||1||2||SET TWOS COMPLEMENT OVERFLOW BIT
|-
|0C||CLC||1||2||CLEAR CARRY
|-
|0D||SEC||1||2||SET CARRY
|-
|0E||CLI||1||2||CLEAR INTERRUPT MASK
|-
|0F||SEI||1||2||SET INTERRUPT MASK
|-
|10||SBA||1||2||SUBTRACT ACCUMULATORS
|-
|11||CBA||1||2||COMPARE ACCUMULATORS
|-
|14||IDIV DIR  ||2||6||INTEGER DIVIDE
|-
|15||FDIV DIR  ||2||6||FRACTIONAL DIVIDE  (b = D/M, > a = D%M)
|-
|16||TAB||1||2||TRANSFER ACCUMULATOR A TO ACCUMULATOR B
|-
|17||TBA||1||2||TRANSFER FROM ACCUMULATOR B TO ACCUMULATOR A
|-
|18||XGXY||1||4||EXCHANGE REGISTER X AND REGISTER Y 
|-
|19||DAA||1||2||DECIMAL ADJUST ACCUMULATOR A
|-
|1A||XGDX||1||||EXCHANGE DOUBLE ACCUMLATOR AND INDEX REG X
|-
|1B||ABA||1||2||ADD ACCUMULATOR B TO ACCUMULATOR A
|-
|1C||CPD IMM||3||5||COMPARE DOUBLE ACCUMULATOR
|-
|1D||CPD DIR||2||6||COMPARE DOUBLE ACCUMULATOR
|-
|1F||CPD EXT||3||7||COMPARE DOUBLE ACCUMULATOR
|-
|20||BRA||2||3||BRANCH ALWAYS
|-
|21||BRN||2||3||BRANCH NEVER
|-
|22||BHI||2||3||BRANCH IF HIGHER
|-
|23||BLS||2||3||BRANCH IF LOWER OR SAME
|-
|24||BCC / BHS||2||3||BRANCH IF CARRY CLR / BRANCH IF HIGHER OR SAME
|-
|25||BCS / BLO||2||3||BRANCH IF CARRY SET / BRANCH IF LOWER
|-
|26||BNE||2||3||BRANCH IF NOT EQUAL TO ZERO
|-
|27||BEQ||2||3||BRANCH IF EQUAL
|-
|28||BVC||2||3||BRANCH IF OVERFLOW CLEAR
|-
|29||BVS||2||3||BRANCH IF OVERFLOW SET
|-
|2A||BPL||2||3||BRANCH IF PLUS
|-
|2B||BMI||2||3||BRANCH IF MINUS
|-
|2C||BGE||2||3||BRANCH IF GREATER THAN OR EQUAL TO ZERO
|-
|2D||BLT||2||3||BRANCH IF LESS THAN ZERO
|-
|2E||BGT||2||3||BRANCH IF GREATER THAN ZERO
|-
|2F||BLE||2||3||BRANCH IF LESS THAN OR EQUAL TO ZERO
|-
|30||TSX||1||3||TRANSFER FROM STACK POINTER TO INDEX REGISTER X
|-
|31||INS||1||3||INCREMENT STACK POINTER
|-
|32||PULA||1||4||PULL DATA FROM STACK
|-
|33||PULB||1||4||PULL DATA FROM STACK
|-
|34||DES||1||3||DECREMENT STACK POINTER
|-
|35||TXS||1||3||TRANSFER FROM INDEX REGISTER X TO STACK POINTER
|-
|36||PSHA||1||3||PUSH DATA ONTO STACK
|-
|37||PSHB||1||3||PUSH DATA ONTO STACK
|-
|38||PULX||1||5||PULL INDEX REGISTER X FROM STACK
|-
|39||RTS||1||5||RETURN FROM SUBROUTINE
|-
|3A||ABX||1||3||ADD ACCUMULATOR B TO INDEX REGISTER X
|-
|3B||RTI||1||12||RETURN FROM INTERRUPT
|-
|3C||PSHX||1||4||PUSH INDEX REGISTER X ONTO STACK
|-
|3D||MUL||1||10||MULTIPLY UNSIGNED
|-
|3E||WAI||1||14||WAIT FOR INTERRUPT
|-
|3F||SWI||1||14||SOFTWARE INTERRUPT
|-
|40||NEGA||1||2||NEGATE
|-
|43||COMA||1||2||COMPLEMENT
|-
|44||LSRA||1||2||LOGICAL SHIFT RIGHT
|-
|46||RORA||1||2||ROTATE RIGHT
|-
|47||ASRA||1||2||ARITHMETIC SHIFT RIGHT
|-
|48||ASLA / LSLA||1||2||ARITHMETIC / LOGICAL SHIFT LEFT
|-
|49||ROLA||1||2||ROTATE LEFT
|-
|4A||DECA||1||2||DECREMENT
|-
|4C||INCA||1||2||INCREMENT
|-
|4D||TSTA||1||2||TEST
|-
|4F||CLRA||1||2||CLEAR
|-
|50||NEGB||1||2||NEGATE
|-
|53||COMB||1||2||COMPLEMENT
|-
|54||LSRB||1||2||LOGICAL SHIFT RIGHT
|-
|56||RORB||1||2||ROTATE RIGHT
|-
|57||ASRB||1||2||ARITHMETIC SHIFT RIGHT
|-
|58||ASLB / LSLB||1  ||2||ARITHMETIC / LOGICAL SHIFT LEFT
|-
|59||ROLB||1||2||ROTATE LEFT
|-
|5A||DECB||1||2||DECREMENT
|-
|5C||INCB||1||2||INCREMENT
|-
|5D||TSTB||1||2||TEST
|-
|5F||CLRB||1||2||CLEAR
|-
|60||NEG IND,X||2||6||NEGATE
|-
|63||COM IND,X||2||6||COMPLEMENT
|-
|64||LSR IND,X||2||6||LOGICAL SHIFT RIGHT
|-
|66||ROR IND,X||2||6||ROTATE RIGHT
|-
|67||ASR IND,X||2||6||ARITHMETIC SHIFT RIGHT
|-
|68||ASL / LSL IND,X||2  ||6||ARITHMETIC / LOGICAL SHIFT LEFT
|-
|69||ROL IND,X||2||6||ROTATE LEFT
|-
|6A||DEC IND,X||2||6||DECREMENT
|-
|6C||INC IND,X||2||6||INCREMENT
|-
|6D||TST IND,X||2||6||TEST
|-
|6E||JMP IND,X||2||3||JUMP
|-
|6F||CLR IND,X||2||6||CLEAR
|-
|70||NEG EXT||3||6||NEGATE
|-
|73||COM EXT||3||6||COMPLEMENT
|-
|74||LSR EXT||3||6||LOGICAL SHIFT RIGHT
|-
|76||ROR EXT||3||6||ROTATE RIGHT
|-
|77||ASR EXT||3||6||ARITHMETIC SHIFT RIGHT
|-
|78||ASL / LSL EXT||3  ||6||ARITHMETIC / LOGICAL SHIFT LEFT
|-
|79||ROL EXT||3||6||ROTATE LEFT
|-
|7A||DEC EXT||3||6||DECREMENT
|-
|7C||INC EXT||3||6||INCREMENT
|-
|7D||TST EXT||3||6||TEST
|-
|7E||JMP EXT||3||3||JUMP
|-
|7F||CLR EXT||3||6||CLEAR
|-
|80||SUBA IMM||2||2||SUBTRACT
|-
|81||CMPA IMM||2||2||COMPARE
|-
|82||SBCA IMM||2||2||SUBTRACT WITH CARRY
|-
|83||SUBD IMM||3||4||SUBTRACT DOUBLE ACCUMULATOR
|-
|84||ANDA IMM||2||2||LOGICAL AND
|-
|85||BITA IMM||2||2||BIT TEST
|-
|86||LDAA IMM||2||2||LOAD ACCUMULATOR
|-
|87||BRSET DIR||4||||BRANCH IF BIT(S) ARE SET
|-
|88||EORA IMM||2||2||EXCLUSIVE OR
|-
|89||ADCA IMM||2||2||ADD WITH CARRY
|-
|8A||ORAA IMM||2||2||INCLUSIVE OR
|-
|8B||ADDA IMM||2||2||ADD WITHOUT CARRY
|-
|8C||CPX IMM||3||4||COMPARE INDEX REGISTER X
|-
|8D||BSR||2||6||BRANCH TO SUBROUTINE
|-
|8E||LDS IMM||3||3||LOAD STACK POINTER
|-
|8F||BRCLR DIR||4||||BRANCH IF BIT(S) ARE CLEAR
|-
|90||SUBA DIR||2||3||SUBTRACT
|-
|91||CMPA DIR||2||3||COMPARE
|-
|92||SBCA DIR||2||3||SUBTRACT WITH CARRY
|-
|93||SUBD DIR||2||5||SUBTRACT DOUBLE ACCUMULATOR
|-
|94||ANDA DIR||2||3||LOGICAL AND
|-
|95||BITA DIR||2||3||BIT TEST
|-
|96||LDAA DIR||2||3||LOAD ACCUMULATOR
|-
|97||STAA DIR||2||3||STORE ACCUMULATOR
|-
|98||EORA DIR||2||3||EXCLUSIVE OR
|-
|99||ADCA DIR||2||3||ADD WITH CARRY
|-
|9A||ORAA DIR||2||3||INCLUSIVE OR
|-
|9B||ADDA DIR||2||3||ADD WITHOUT CARRY
|-
|9C||CPX DIR||2||5||COMPARE INDEX REGISTER X
|-
|9D||JSR DIR||2||5||JUMP TO SUBROUTINE
|-
|9E||LDS DIR||2||4||LOAD STACK POINTER
|-
|9F||STS DIR||2||4||STORE STACK POINTER
|-
|A0||SUBA IND,X||2||4||SUBTRACT
|-
|A0 80 ||SUBA IND,Y||2||||SUBTRACT
|-
|A1||CMPA IND,X||2||4||COMPARE
|-
|A1 80 ||CMPA IND,Y+||2||||COMPARE WITH/Y+
|-
|A2||SBCA IND,X||2||4||SUBTRACT WITH CARRY
|-
|A2 80||SBCA IND,Y||2||||SUBTRACT WITH CARRY
|-
|A3||SUBD IND,X||2||6||SUBTRACT DOUBLE ACCUMULATOR
|-
|A3 80||SUBD IND,Y||2||6||SUBTRACT DOUBLE ACCUMULATOR
|-
|A4||ANDA IND,X||2||4||LOGICAL AND
|-
|A4 80||ANDA IND,Y||2||4||LOGICAL AND
|-
|A5||BITA IND,X||2||4||BIT TEST
|-
|A5 80||BITA IND,Y||2||4||BIT TEST
|-
|A6||LDAA IND,X||2||4||LOAD ACCUMULATOR
|-
|A6 80 ||LDAA IND,Y+||2||||LOAD ACCUMULATOR WITH/Y+
|-
|A7||STAA IND,X||2||4||STORE ACCUMULATOR
|-
|A7 80||STAA IND,Y||2||||STORE ACCUMULATOR
|-
|A8||EORA IND,X||2||4||EXCLUSIVE OR
|-
|A8 80||EORA IND,Y||2||4||EXCLUSIVE OR
|-
|A9||ADCA IND,X||2||4||ADD WITH CARRY
|-
|A9 80||ADCA IND,Y||2||4||ADD WITH CARRY
|-
|AA||ORAA IND,X||2||4||INCLUSIVE OR
|-
|AA 80||ORAA IND,Y||2||4||INCLUSIVE OR
|-
|AB||ADDA IND,X||2||4||ADD WITHOUT CARRY
|-
|AB 80||ADDA IND,Y||2||4||ADD WITHOUT CARRY
|-
|AC||CPX IND,X||2||6||COMPARE INDEX REGISTER X
|-
|AC 80||CPX IND,Y||2||6||COMPARE INDEX REGISTER X
|-
|AD||JSR IND,X||2||6||JUMP TO SUBROUTINE
|-
|AD 80 ||JSR IND,Y||2||||JUMP TO SUBROUTINE
|-
|AE||LDS IND,X||2||5||LOAD STACK POINTER
|-
|AE 80||LDS IND,Y||2||5||LOAD STACK POINTER
|-
|AF||STS IND,X||2||5||STORE STACK POINTER
|-
|AF 80||STS IND,Y||2||5||STORE STACK POINTER
|-
|B0||SUBA EXT||3||4||SUBTRACT
|-
|B1||CMPA EXT||3||4||COMPARE
|-
|B2||SBCA EXT||3||4||SUBTRACT WITH CARRY
|-
|B3||SUBD EXT||3||6||SUBTRACT DOUBLE ACCUMULATOR
|-
|B4||ANDA EXT||3||4||LOGICAL AND
|-
|B5||BITA EXT||3||4||BIT TEST
|-
|B6||LDAA EXT||3||4||LOAD ACCUMULATOR
|-
|B7||STAA EXT||3||4||STORE ACCUMULATOR
|-
|B8||EORA EXT||3||4||EXCLUSIVE OR
|-
|B9||ADCA EXT||3||4||ADD WITH CARRY
|-
|BA||ORAA EXT||3||4||INCLUSIVE OR
|-
|BB||ADDA EXT||3||4||ADD WITHOUT CARRY
|-
|BC||CPX EXT||3||6||COMPARE INDEX REGISTER X
|-
|BD||JSR EXT||3||6||JUMP TO SUBROUTINE
|-
|BE||LDS EXT||3||5||LOAD STACK POINTER
|-
|BF||STS EXT||3||5||STORE STACK POINTER
|-
|C0||SUBB IMM||2||2||SUBTRACT
|-
|C1||CMPB IMM||2||2||COMPARE
|-
|C2||SBCB IMM||2||2||SUBTRACT WITH CARRY
|-
|C3||ADDD IMM||3||4||ADD DOUBLE ACCUMULATOR
|-
|C4||ANDB IMM||2||2||LOGICAL AND
|-
|C5||BITB IMM||2||2||BIT TEST
|-
|C6||LDAB IMM||2||2||LOAD ACCUMULATOR
|-
|C7||BRSET IND, X||4||||BRANCH IF BIT(S) SET
|-
|C8||EORB IMM||2||2||EXCLUSIVE OR
|-
|C9||ADCB IMM||2||2||ADD WITH CARRY
|-
|CA||ORAB IMM||2||2||INCLUSIVE OR
|-
|CB||ADDB IMM||2||2||ADD WITHOUT CARRY
|-
|CC||LDD IMM||3||3||LOAD DOUBLE ACCUMULATOR
|-
|CD 08||INY||2||4||INCREMENT INDEX REGISTER Y
|-
|CD 09||DEY||2||4||DECREMENT INDEX REGISTER Y
|-
|CD 1A||XGDY||2||||EXCHANGE DOUBLE ACCUMULATOR AND INDEX REG Y
|-
|CD 3A||ABY||2||||ADD ACCUMULATOR B TO INDEX REG Y
|-
|CD 8C ||CMPY IMM, Y++||4||||CMPY INDEX REGISTER Y AND INCREMENT.
|-
|CD A3||CPD IND,Y
|-
|CD AC||CPX IND,Y
|-
|CD CE||LDY IMM||4||4||LOAD INDEX REGISTER Y
|-
|CD DF||STY DIR||3||5||STORE INDEX REGISTER Y
|-
|CD EE||LDY IND,X||3||6||LOAD INDEX REGISTER Y
|-
|CD EF||STX IND,Y||3||6||
|-
|CD FE||||4????
|-
|CE||LDX IMM||3||3||LOAD INDEX REGISTER X
|-
|CF||*****||3||||?????(4!!!!!)
|-
|CF||STOP||1||||
|-
|D0||SUBB DIR||2||3||SUBTRACT
|-
|D1||CMPB DIR||2||3||COMPARE
|-
|D2||SBCB DIR||2||3||SUBTRACT WITH CARRY
|-
|D3||ADDD DIR||2||5||ADD DOUBLE ACCUMULATOR
|-
|D4||ANDB DIR||2||3||LOGICAL AND
|-
|D5||BITB DIR||2||3||BIT TEST
|-
|D6||LDAB DIR||2||3||LOAD ACCUMULATOR
|-
|D7||STAB DIR||2||3||STORE ACCUMULATOR
|-
|D8||EORB DIR||2||3||EXCLUSIVE OR
|-
|D9||ADCB DIR||2||3||ADD WITH CARRY
|-
|DA||ORAB DIR||2||3||INCLUSIVE OR
|-
|DB||ADDB DIR||2||3||ADD WITHOUT CARRY
|-
|DC||LDD DIR||2||4||LOAD DOUBLE ACCUMULATOR
|-
|DD||STD DIR||2||4||STORE DOUBLE ACCUMULATOR
|-
|DE||LDX DIR||2||4||LOAD INDEX REGISTER X
|-
|DF||STX DIR||2||4||STORE INDEX REGISTER X
|-
|E0||SUBB IND,X||2||4||SUBTRACT
|-
|E0 80||SUBB IND,Y||2||4||SUBTRACT
|-
|E1 ||CMPB IND,X||2||4||COMPARE
|-
|E1 80||CMPB IND,Y||2||4||COMPARE
|-
|E2||SBCB IND,X||2||4||SUBTRACT WITH CARRY
|-
|E2 80||SBCB IND,Y||2||4||SUBTRACT WITH CARRY
|-
|E3||ADDD IND,X||2||6||ADD DOUBLE ACCUMULATOR
|-
|E3 80||ADDD IND,Y||2||6||ADD DOUBLE ACCUMULATOR
|-
|E4||ANDB IND,X||2||4||LOGICAL AND
|-
|E4 80||ANDB IND,Y||2||4||LOGICAL AND
|-
|E5||BITB IND,X||2||4||BIT TEST
|-
|E5 80||BITB IND,Y||2||4||BIT TEST
|-
|E6||LDAB IND,X||2||4||LOAD ACCUMULATOR
|-
|E6 80||LDAB IND,Y||2||4||LOAD ACCUMULATOR
|-
|E7||STAB IND,X||2||4||STORE ACCUMULATOR
|-
|E7 80||STAB IND,Y||2||4||STORE ACCUMULATOR
|-
|E8||EORB IND,X||2||4||EXCLUSIVE OR
|-
|E8 80||EORB IND,Y||2||4||EXCLUSIVE OR
|-
|E9||ADCB IND,X||2||4||ADD WITH CARRY
|-
|E9 80||ADCB IND,Y||2||4||ADD WITH CARRY
|-
|EA||ORAB IND,X||2||4||INCLUSIVE OR
|-
|EA 80||ORAB IND,Y||2||4||INCLUSIVE OR
|-
|EB||ADDB IND,X||2||4||ADD WITHOUT CARRY
|-
|EB 80||ADDB IND,Y||2||4||ADD WITHOUT CARRY
|-
|EC||LDD IND,X||2||5||LOAD DOUBLE ACCUMULATOR
|-
|EC 80||LDD IND,Y||2||5||LOAD DOUBLE ACCUMULATOR
|-
|ED||STD IND,X||2||5||STORE DOUBLE ACCUMULATOR
|-
|ED 80||STD IND,Y||2||5||STORE DOUBLE ACCUMULATOR
|-
|EE||LDX IND,X||2||5||LOAD INDEX REGISTER X
|-
|EE 80||LDX IND,Y++||2  ||5||LOAD INDEX REGISTER X WITH/Y++
|-
|EF||STX IND,X||2||5||STORE INDEX REGISTER X
|-
|EF 80||STX IND,X||2||5||STORE INDEX REGISTER X
|-
|F0||SUBB EXT||3||4||SUBTRACT
|-
|F1||CMPB EXT||3||4||COMPARE
|-
|F2||SBCB EXT||3||4||SUBTRACT WITH CARRY
|-
|F3||ADDD EXT||3||6||ADD DOUBLE ACCUMULATOR
|-
|F4||ANDB EXT||3||4||LOGICAL AND
|-
|F5||BITB EXT||3||4||BIT TEST
|-
|F6||LDAB EXT||3||4||LOAD ACCUMULATOR
|-
|F7||STAB EXT||3||4||STORE ACCUMULATOR
|-
|F8||EORB EXT||3||4||EXCLUSIVE OR
|-
|F9||ADCB EXT||3||4||ADD WITH CARRY
|-
|FA||ORAB EXT||3||4||INCLUSIVE OR
|-
|FB||ADDB EXT||3||4||ADD WITHOUT CARRY
|-
|FC||LDD EXT||3||5||LOAD DOUBLE ACCUMULATOR
|-
|FD||STD EXT||3||5||STORE DOUBLE ACCUMULATOR
|-
|FE||LDX EXT||3||5||LOAD INDEX REGISTER X
|-
|FF||STX EXT||3||5||STORE INDEX REGISTER X
|}


===Procs Docs Tossed===
===Procs Docs Tossed===
Line 663: Line 205:


===Related?===
===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/*/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
* https://web.archive.org/web/20140306212142/http://www.16paws.com/ECU/DASMxx/DASMx.htm


*https://www.physicsforums.com/threads/ic-datsheet.67692/
====Suzuki ECU====
(Uses MH6X11)
* https://fixkick.com/ECU/transistors.html
* https://fixkick.com/ECU/substitutes/M526x-tutes.html


==Board parts==
====Mazda ECU====
* https://www.icbreakout.com/products/plcc-68-breakout-board-24-23x24-23-mm-1-27-mm
* https://mazda626.net/topic/13794-ecus-and-eproms-it-friggin-works/?page=3
* https://www.adapt-plus.com/products_html/APW9327-ZC158.html
* https://www.adapt-plus.com/resources/assets/images/pdf/catalogpdf_51ba069587b6f.pdf
* https://ftyracing.com/product/1g-dsm-ecu-breakout-board/
* https://ftyracing.com/product/2g-dsm-evo8-ecu-breakout-board/
===Chips===


====ISC drivers====
===Mods===
* http://dsmlink.com/wiki/driver01
* https://web.archive.org/web/20151021233215/http://www.ilostmymind.com/ECU/DSM
* https://www.u-obd.com/product/m5269l/
* https://web.archive.org/web/20151023035547/http://www.ilostmymind.com:80/ECU/DSM/progra.txt
* https://www.alldatasheet.com/datasheet-pdf/pdf/936/MITSUBISHI/M5269L.html?
* https://web.archive.org/web/20151023035522/http://www.ilostmymind.com:80/ECU/DSM/E931C6F5hex.html


====MH6111 Processor====
==Dis/assembly==
* C$ 12.77 | 5piece MH6111-E827 MH6111 PLCC-68 In Stock
* Documentation
* https://a.aliexpress.com/_mtLwCGD
*: 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==
==Standalones==
* https://performanceecu.com/blog/ecu-comparison-chart-for-4g63-turbo-dsm/


===AEM===
===AEM===
Line 692: Line 261:
===Megasquirt===
===Megasquirt===
* https://www.diyautotune.com/support/tech/hardware/diypnp/available-models/#N52
* https://www.diyautotune.com/support/tech/hardware/diypnp/available-models/#N52
* https://www.diyautotune.com/support/tech/install/dsm/megasquirt-your-4g63/


===Speeduino===
===Speeduino===
Line 705: 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/
* 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
===GENERAL NOTES===
Project started with the help of dsm-ecu Yahoo group, thanks for the great info.
Most disassembly comments in this file by Christian, christi999@hotmail.com.  


===CPU===
===rusEFI===
The microcomputer chip used in the 1G DSM ECU seems to be a custom application built around the <code>6801</code> architecture, Check the <code>6801, 6803, 6301, 68HC11</code> at web sites such as alldatasheet.com, etc.  
* https://rusefi.com/forum/viewtopic.php?f=2&t=622
** https://github.com/rusefi/rusefi/wiki


CPU clock frequency is assumed to be <code>2MHz</code>, i.e. the instructions cycle time is <code>0.5us</code>.
===PowerFC===
* https://www.apexi-usa.com/products/power-fc-components-universal-fc-commander-oled-type


===Assembly binary verifications===
==Stims==
The 2 binaries produced without any customization ("<code>enableCustom</code>" definition is commented-out) have been verified to be identical to the <code>E931</code> and <code>E932</code> eprom images at hand.
* jimStim
*: https://www.diyautotune.com/product/jimstim-1-5-megasquirt-stimulator-w-wheel-simulator-assembled/
* Ardu-stim
*: https://github.com/speeduino/Ardu-Stim


To check the validity of symbolic substitution, the entire code section and tables
==Speed Density==
was offset by <code>$0200</code> using "<code>codeOffset</code>" and the corresponding binary was tested on
Kim Hulkkonen
my car (<code>E932</code>) without any problems for weeks. Additional tests were conducted by
writing inline code in several part of the code and no adverse effect was ever noted.


To check the validity of symbolic substitution for ram addresses, every ram location
===SwD-Swede Density===
starting at <code>$0057</code> was offset by 1 (i.e. <code>temp1</code> was at memory address <code>$58</code> instead of <code>$57</code>, etc) and the corresponding binary was tested on my car (<code>E932</code>) without any problems during car startup and engine revving. No additional test performed.
* 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


This means that the code can be modified inline and in most cases, ram memories can
* https://www.dsmtuners.com/threads/swede-density-for-tunerpro.530446/
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 <code>temp1</code> to <code>temp9</code> variables, the <code>inj1_offT</code>, <code>inj3_offT</code>, <code>inj4_offT</code> and <code>inj2_offT</code> variables, etc.


===Ram memory===
===ds-map===
Memory from <code>$0040</code> to <code>$01bf</code> is backed-up by battery, meaning it is preserved when the ECU is powered-off as long as battery power is supplied. However, memory from <code>$0057</code> to <code>$0190</code> is cleared to <code>0</code> 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 <code>"noRamReset"</code> and then check ram memory at <code>$018f</code> to see if it gets preserved after power off/on cycle, and it did. During the test, <code>$018f</code> was used as a distance counter using the reed switch.
* <s>http://forums.ds-map.net</s>
** https://web.archive.org/web/20180322020233/http://forums.ds-map.net/
* <s>http://wiki.ds-map.net/</s>
** https://web.archive.org/web/20170620082922/http://wiki.ds-map.net/


===Comments===
* DS-MAP V1 - Nick Sanders (pudhed)
Some comments use variable names quite loosly. For instance, multi-byte variables such as <code>[airCnt0:airCnt1:airCnt2]</code> might be refered to as only <code>airCnt0</code>. <code>airCnt0</code> might therefore refer to the single byte <code>airCnt0</code>, to the 16 bit value <code>[airCnt0:airCnt1]</code> or to the 24 bit complete variable, depending on the context.
* Jackal (V2) - Curtis Hacker (hakcenter)
* Werewolf (v3) - Curtis Hacker


Comments were added incrementally as my knowledge of code and variables increased. As new knowledge was learned, old comments were updated or corrected as much as possible but not necessarily all of them, so beware... In the end, the 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.
* https://web.archive.org/web/20150522015900/http://forums.ds-map.net/store/jackal-vs-werewolf


===Opcodes===
===Geekmapped===
* <s>http://geekmapped.com/</s>
** https://web.archive.org/web/20160306074252/http://geekmapped.com:80/


* <code>cmpd</code>: cmpd1 is used for some addressing modes instead of cmpd since TASM does not support unusual mitsubishi ECU cmpd opcodes..  
==Knock==
* <code>brclr</code>: branch if ALL the given bits are clear
Bill Sundahl - bsundahl@ix.netcom.com
* <code>brset</code>: branch if ANY of the given bits are set (as opposed to usual implementation of ALL bits set...)
* https://web.archive.org/web/20070408152424/http://home.netcom.com:80/~bsundahl/
* The addressing mode using <code>Y</code> indexing also implicitly modifies the <code>y</code> register. It seems that <code>y</code> is increased by 1 or 2 depending whether the instruction is a 8 bit or 16 bits operation... The following cases are confirmed:


<pre>
Pinout, functionality
cmpa $00,y  -> y = y + 1
* http://stealth316.com/misc/knock-chip.doc
cmpb $00,y  -> y = y + 1
*http://stealth316.com/misc/knock-board.txt
ldaa $00,y  -> y = y + 1
suba $00,y  -> y = y + 1
ldx  $00,y  -> y = y + 2
std  $00,y  -> y = y + 2
</pre>


===Telemark assembler===
Phantom knock
This assembler does not provide warning messages when code assembles to the same memory space, e.g. you insert code in the middle of the file which result in the rest of the code to be offset by <code>N bytes</code>. 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 <code>"$ff"</code>. Check that there is no code spilage over <code>.org</code> statements. Check that the address space does not exceed <code>$ffff</code>. Use the <code>"codeOffset"</code> at the beginnng of the file to correct the problem.
* https://web.archive.org/web/20071016060058/http://users.wpi.edu/~ktarry/dsmtech/phantomknock.html


===Fuel injector and coil power transistor control===
==ECU Stickers==
Although the 4 fuel injectors and the 2 coil power transistors are mapped to regular ports (<code>port1, port2 and port5</code>) 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 <code>"output enable"</code> bit exists, which I haven't found at this point...
There are three parts of the ECU label stickers to make a point of:
Another way to activate or deactivate them would be to use the <code>output compare registers</code> (as currently done by the ECU code) and provoke an immediat output change.
* 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


Here is my current understanding of how injector scheduling works, not everything is clear to me so don't take this as gospel...:
==Idle Adjustment==
Maybe should be in another article?
* https://www.sixsigmatuning.com/dsm-idle-control


The output compare registers for the fuel injectors seem to be at least double buffered and maybe triple buffered (see <code>schedInjSim</code> routine). That means that up to 3 different output compare values can be written to <code>t1_outCmpWr</code> and <code>t2_outCmpWr</code> to activate or deactivate the injectors at those time instants. Each time a value is written to <code>t1_outCmpWr</code> or <code>t2_outCmpWr</code>, the corresponding injector state is also internally stored. That means that to activate injector #1 at time <code>X</code>, you would first reset bit 0 of t1_csr, corresponding to injector #1 and then write <code>X</code> to <code>t1_outCmpWr</code>. You could then immediately schedule the deactivation of injector #1 by setting bit 0 of <code>t1_csr</code> to 1 and then write the deactivation time to <code>t1_outCmpWr</code>. When one of the output compare register stored value matches the clock at <code>t1t2_clk</code>, the injector is activated/deactivated and the corresponding interrupt routine is called (if the interrupt mask is clear...) at <code>outCompInt1</code> or <code>outCompInt2</code>.
==See Also==
* [[DSM/DIY ECU]]


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...:
==Notes==
<code>t3_outCmpWr</code> 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 <code>X</code> you would write <code>X</code> to <code>t3_outCmpWr</code> and <code>reset(0)</code> bit 2 of <code>t3_csr0</code>. At time <code>X</code>, <code>t3_csr0.2</code> would be loaded into <code>port5.1</code> which would energize the coil. <code>t3_csr0.2</code> should not be changed until that happens.
<references/>
In the code, most of the time 2 successive values (the same one) are written to <code>t3_outCmpWr</code> 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 <code>outCompInt3</code> routine. Hence when only the coil need to be activated/deactivated without calling <code>outCompInt3</code>, 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 <code>t3_clock1</code> and <code>t3_clock1</code>, I assume they are connected to the same internal clock at <code>250KHz</code> but might be input capture registers latched when one of the two output compare at <code>t3_outCmpWr</code> is triggered??????? Again speculation, this is the part of the code I understand the least...
 
===Timing diagram===
* <code>4 cylinders = 2 rotations = 2 * 360degrees = 720 degrees</code>
* For sequential injection, fuel injection starts on the cas falling edge
** i.e. cylinder #1 injection starts at <code>-5 BTDC</code> of <code>#3 TDC</code>
* 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 <code>5deg BTDC</code> 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. <code>10deg ATDC</code>). As this shows, there are several combinations and the complexity of the code to handle the coil reflects that fact.
 
<pre style="white-space: pre;"> 
                        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
</pre>
 
===Airflow calculations dependencies, more details in code===
<pre style="white-space: pre;">
  masProc: airflow sensor interrupt, increases [airCntNew0:airCntNew1]
    |    by airQuantum for every airflow sensor pulse received
    |
    |
    |
    |--> [airCntNew0:airCntNew1]: Increased by airQuantum for every airflow sensor pulse
            |                    Reset and used as input to [airCnt0:airCnt1:airCnt2]
            |                    on every cas falling edge, i.e. air is counted twice
            |                    per rotation, once for every cylinder cycle... It can
            |                    therefore be seen as the air count per cylinder.
            |
            |--> [airCnt0:airCnt1:airCnt2]: Filtered version of 256*[airCntNew0:airCntNew1]
                        |                    exponential averaging is used.
                        |
                        |
                        |
                        |--> mafraw16: 16 bit airflow sensor pulse frequency (mafraw16/10.24)Hz
                        |      |      mafraw16 = 8205*[airCnt0:airCnt1]/Tcas
                        |      |
                        |      |
                        |      |--> mafraw: 8 bit airflow sensor pulse frequency (6.25*mafraw)Hz
                        |                    mafraw: = mafraw16/64
                        |
                        |
                        |
                        |--> airVol16: Equals [airCnt0:airCnt1] * masScalar/65536
                        |      |
                        |      |
                        |      |
                        |      |--> airVol  : Equals airVol16/2
                        |      |--> airVolT  : Equals airVol16/2 * iatCompFact/128
                        |      |--> airVolTB : Equals airVol16/2 * iatCompFact/128 * baroFact/128
                        |      |--> airVolB  : Equals airVol16/2 * baroFact/128
                        |
                        |
                        |--> injPw: Injector pulse width in "normal" operation,
                                    injPw = [airCnt0:airCnt1] * injFactor/256  + other corrections
</pre>
 
===Discussion on MAS compensation factors===
Total airflow sensor compensation is made-up of:
 
<pre  style="white-space: pre;">
totMasComp(freq,iat,baro) = masComp + t_masComp(freq) + t_masLin(freq,iat,baro)
</pre>
 
where <code>maxComp</code> is a fixed offset (<code>$64</code> for 1G and <code>$40</code> for 2G) and <code>t_masComp</code> and <code>t_masLin</code> are table values interpolated from frequency, intake air temperature and barometric pressure. <code>t_masComp(freq)</code> is basically compensation for the airflow sensor charcteristic curve as a function of frequency (to linearize the number of pulse per sec vs. the volume of air passing through the sensor) while <code>t_masLin(freq,iat,baro)</code> is a smaller factor probably compensating for temperature drift (electronic) and airflow characteristic change as a function of air density???
 
Assuming the following:
 
<pre>
* injComp    = 100% (for 260cc injectors at 36psi)
* workFtrim  = 100%
* o2FuelAdj  = 100%
* iatCompFact = 100% (at 25.6degC)
* baroFact    = 100% (~1 bar)
* openLoopEnr = 100%
* coldTempEnr = 100%
* enrWarmup  = 0%
</pre>
 
Then the injector pulswidth is calculated by the ECU as (excluding deadtime)
 
<pre  style="white-space: pre;">
injPw(usec/cylinder) = numPulsePerCasInterrupts * $9c * totMasComp * 16/256
                    = numPulsePerCasInterrupts * totMasComp * 9.75
</pre>
 
If we also assume a <code>14.7</code> air to fuel ratio, <code>Dair=1.18</code> air density <code>(g/litre)</code> at <code>25degC</code>, <code>Dgas=0.775</code> fuel density <code>(g/cc)</code> then we would need <code>23900 usec</code> of injection per litre of air using the same <code>260cc at 36psi</code>, working that factor into the equation, we get
 
<pre style="white-space: pre;">
injPw(usec/cylinder) = numPulsePerCasInterrupts * totMasComp * 9.75
                    = numPulsePerCasInterrupts * totMasComp/2452 * 2452 * 9.75
                    = numPulsePerCasInterrupts * totMasComp/2452 * 23900usecOfInjection/litreOfAir
 
</pre>
 
This means that under the above assumptions, <code>totMasComp/2452</code> has units of <code>litreOfAirPerAirflowSensorPulse</code>.
   
The factor <code>2452</code> is similar to the one provided by J. Oberholtzer, I think.
The exact value must be somewhere in that range...
   
<code>masScalar</code> is also used for maf compensation (<code>$5e86,24198</code> for 1G, <code>$7A03,31235</code> for 2g) for controls other than fuel injection. It probably correspond to some metric of the <code>totMasComp</code> curve (average or max under given conditions). From 1G and 2G numbers, It could correspond to the max of the <code>masComp + t_masComp(freq)</code> curve multiplied by <code>0.808*128</code>? It could also correspond to the <code>masComp + t_masComp(freq)</code> curve sampled at around <code>69Hz</code> and multiplied by <code>128</code>.
 
<pre style="white-space: pre;">
masScalar = maxTotMasComp*0.808*128 = totMasComp(69Hz)*128
</pre>
 
We then have in the case of <code>masScalar = maxTotMasComp*0.808*128</code>:
 
<pre style="white-space: pre;">
airVol16 = numPulsePerCasInterrupts * $9c * masScalar / 65536
        = numPulsePerCasInterrupts * $9c * maxTotMasComp*0.808*128 / 65536
        = numPulsePerCasInterrupts * maxTotMasComp * 0.2462
        = numPulsePerCasInterrupts * maxTotMasComp/2452 * 2452*0.2462
        = numPulsePerCasInterrupts * maxTotMasComp/2452 * 603.68
</pre>
 
since <code>totMasComp/2452</code> is <code>litreOfAirPerAirflowSensorPulse</code>, we have
 
<pre>
airVol16 = numPulsePerCasInterrupts * litreOfAirPerAirflowSensorPulse * 603.68
</pre>
 
Using again <code>1.18g/litre</code> air density we get
 
<pre>
airVol16 = numPulsePerCasInterrupts * litreOfAirPerAirflowSensorPulse *1.18 * 603.68/1.18
        = numPulsePerCasInterrupts * gramsOfAirPerAirflowSensorPulse * 512
        = gramsOfAirPerCasInterrupts * 512
</pre>
   
In that case, <code>airVol16/512</code> can be seen has having units of <code>gramsOfAirPerCasInterrupts</code> (grams of air entering one cylinder). Note that the factor of <code>512</code> is not random, the factor <code>0.808</code> is used to get it in that case...
   
The load index values used to interpolate the fuel map is then
 
<pre>
airVol16/2 <= 96
   
    loadIndex = (airVol16/2-32)/16
              = (gramsOfAirPerCasInterrupts*512/2 -32)/16
              = gramsOfAirPerCasInterrupts*16-2
   
airVol16/2 >= 96
   
    loadIndex = gramsOfAirPerCasInterrupts * 512/2 * 0.668/16
              = gramsOfAirPerCasInterrupts*10.69
</pre>
 
Which correspond to (<code>gramsOfAirPerCasInterrupts</code> for each index value)
 
<pre>
  0      1      2      3      4      5      6      7      8      9      10    11
0.125  0.1875  0.25  0.3125  0.3750  0.4678  0.5614 0.6549  0.7485  0.8421  0.9356  1.0292
</pre>
 
<code>gramsOfAirPerRevolution</code> would be twice those values. Notice that the max value of <code>1.0292</code> correspond to about <code>250HP</code> when <code>BSFC=0.55</code> which is in the range of the stock 1G 195HP...
   
Also notice that the 8 bit airflow <code>airVol = airVol16/2</code> will saturate to $ff when <code>airVol16/2 = 255</code> which correspond to <code>gramsOfAirPerCasInterrupts</code> = 1 gram. <code>airVolT airVolTB and airVolB</code> will also saturate in the same range...
   
We can now compare these results with the stock boost gauge. It has a max range of <code>1Kg per sq cm</code> which equals <code>14.2 psi</code>. The boost gauge duty cycle is given by
 
<pre>
bGaugeODuty = t_bGauge(airVolT/32)/24
</pre>
   
When maximum <code>airVolT = 255 = iatCompFact*airVol16/2, bGaugeODuty = 20/24 = 0.83</code>. At <code>25.6 degC, iatCompFact = 1.0</code> and therefore <code>airVol16=510</code> which translates to <code>1g</code> of air. boost gauge duty of <code>0.83</code> correspond to approx. <code>10.9psi</code> (by eye...).
Assuming a displacement of <code>0.5litre</code> per cylinder and charge air density of <code>1.18</code> (<code>25degC</code>, probably too low for that psi range, unless you have a perfect intercooler..) we would get <code>1.18*0.5*(10.9+14.5)/14.5 = 1.03g</code> of air per cylinder (cas interrupt). This is quite close to the <code>1.0g</code> we had earlier.
 
The <code>0psi</code> point on the gauge correspond to a duty cycle of about <code>40.5%</code> which correspond to <code>bGaugeODuty=9.75/24</code> which from <code>t_bGauge</code> correspond to <code>airVolT/32=2.875</code> which means <code>airVolT = 92</code>. with <code>iatCompFact = 1.0 @25degC</code>, we get <code>airVol16 = 2*airVolT/iatCompFact = 184</code> which correspond to <code>0.36grams</code> of air Assuming a displacement of <code>0.5litre</code> per cylinder and charge air density of <code>1.18@25degC</code> we would get <code>1.18*0.5 = 0.59g</code> of air per cylinder (cas interrupt) at <code>0psi</code>. Compared to <code>0.36g</code> we had earlier this is a large error but then there are several factor not taken onto
account in the calculations, I suppose???.
 
===Engine coolant and intake air temperature===
 
Approximate sensor curves (temperature against ADC value, taken from MMCD). The control points in the service manual are quite close (0 to 2 degC off).
 
{| class="wikitable"
!|ADC
!|ECT</br>degC
!|IAT
!|=====
!|ADC
!|ECT</br>degC
!|IAT
!|=====
!|ADC
!|ECT</br>degC
!|IAT
!|=====
!|ADC
!|ECT</br>degC
!|IAT
|-
|$00||158.0||184.0||||$40||52.0||56.0||||$80||21.0||23.0||||$c0||-7.0||-7.0
|-
|$01||154.4||178.1||||$41||51.3||55.3||||$81||20.6||22.5||||$c1||-7.5||-7.6
|-
|$02||150.9||172.5||||$42||50.7||54.6||||$82||20.2||22.1||||$c2||-8.1||-8.2
|-
|$03||147.5||167.2||||$43||50.1||53.9||||$83||19.8||21.7||||$c3||-8.6||-8.8
|-
|$04||144.2||162.0||||$44||49.5||53.3||||$84||19.4||21.2||||$c4||-9.2||-9.4
|-
|$05||140.9||157.1||||$45||48.9||52.6||||$85||19.0||20.8||||$c5||-9.8||-10.1
|-
|$06||137.7||152.4||||$46||48.3||52.0||||$86||18.7||20.4||||$c6||-10.4||-10.7
|-
|$07||134.6||148.0||||$47||47.7||51.3||||$87||18.3||19.9||||$c7||-10.9||-11.3
|-
|$08||131.6||143.7||||$48||47.2||50.7||||$88||17.9||19.5||||$c8||-11.5||-12.0
|-
|$09||128.6||139.6||||$49||46.6||50.1||||$89||17.6||19.0||||$c9||-12.1||-12.6
|-
|$0a||125.7||135.7||||$4a||46.1||49.4||||$8a||17.2||18.6||||$ca||-12.7||-13.2
|-
|$0b||122.9||132.0||||$4b||45.6||48.8||||$8b||16.9||18.2||||$cb||-13.2||-13.9
|-
|$0c||120.2||128.5||||$4c||45.0||48.2||||$8c||16.5||17.7||||$cc||-13.8||-14.5
|-
|$0d||117.5||125.1||||$4d||44.5||47.7||||$8d||16.1||17.3||||$cd||-14.3||-15.1
|-
|$0e||114.9||121.9||||$4e||44.0||47.1||||$8e||15.7||16.8||||$ce||-14.9||-15.7 
|-
|$0f||112.4||118.8||||$4f||43.5||46.5||||$8f||15.3||16.4||||$cf||-15.4||-16.3
|-
|$10||110.0||116.0||||$50||43.0||46.0||||$90||15.0||16.0||||$d0||-16.0||-17.0
|-
|$11||107.6||113.2||||$51||42.4||45.4||||$91||14.5||15.5||||$d1||-16.5||-17.6
|-
|$12||105.3||110.6||||$52||41.9||44.9||||$92||14.1||15.1||||$d2||-17.0||-18.2
|-
|$13||103.0||108.1||||$53||41.4||44.3||||$93||13.7||14.6||||$d3||-17.5||-18.8
|-
|$14||100.8||105.8||||$54||40.9||43.8||||$94||13.3||14.2||||$d4||-18.0||-19.4
|-
|$15||98.7||103.5||||$55||40.4||43.3||||$95||12.9||13.7||||$d5||-18.6||-20.1
|-
|$16||96.7||101.4||||$56||39.9||42.8||||$96||12.4||13.3||||$d6||-19.2||-20.8
|-
|$17||94.7||99.4||||$57||39.3||42.3||||$97||12.0||12.8||||$d7||-19.8||-21.5
|-
|$18||92.8||97.5||||$58||38.8||41.8||||$98||11.5||12.4||||$d8||-20.5||-22.3
|-
|$19||91.0||95.7||||$59||38.3||41.4||||$99||11.1||12.0||||$d9||-21.3||-23.1
|-
|$1a||89.2||93.9||||$5a||37.8||40.9||||$9a||10.6||11.5||||$da||-22.1||-24.0
|-
|$1b||87.5||92.3||||$5b||37.3||40.4||||$9b||10.2||11.1||||$db||-23.0||-24.9
|-
|$1c||85.9||90.7||||$5c||36.9||39.9||||$9c||9.7||10.7||||$dc||-24.0||-26.0
|-
|$1d||84.3||89.2||||$5d||36.4||39.4||||$9d||9.3||10.2||||$dd||-25.0||-27.1
|-
|$1e||82.8||87.7||||$5e||35.9||38.9||||$9e||8.8||9.8||||$de||-26.2||-28.3
|-
|$1f||81.3||86.3||||$5f||35.4||38.4||||$9f||8.4||9.4||||$df||-27.5||-29.6
|-
|$20||80.0||85.0||||$60||35.0||38.0||||$a0||8.0||9.0||||$e0||-29.0||-31.0
|-
|$21||78.6||83.6||||$61||34.5||37.5||||$a1||7.5||8.5||||$e1||-30.5||-32.5
|-
|$22||77.4||82.4||||$62||34.0||37.0||||$a2||7.1||8.1||||$e2||-32.2||-34.1
|-
|$23||76.2||81.1||||$63||33.6||36.4||||$a3||6.6||7.7||||$e3||-33.9||-35.7
|-
|$24||75.0||79.9||||$64||33.1||35.9||||$a4||6.2||7.3||||$e4||-35.8||-37.5
|-
|$25||73.9||78.8||||$65||32.7||35.4||||$a5||5.8||6.9||||$e5||-37.7||-39.3
|-
|$26||72.9||77.7||||$66||32.3||34.9||||$a6||5.3||6.4||||$e6||-39.7||-41.2
|-
|$27||71.9||76.6||||$67||31.8||34.4||||$a7||4.9||6.0||||$e7||-41.7||-43.0
|-
|$28||70.9||75.5||||$68||31.4||33.9||||$a8||4.5||5.6||||$e8||-43.7||-44.9
|-
|$29||69.9||74.5||||$69||31.0||33.4||||$a9||4.0||5.2||||$e9||-45.8||-46.8
|-
|$2a||69.0||73.5||||$6a||30.5||32.9||||$aa||3.6||4.7||||$ea||-47.8||-48.7
|-
|$2b||68.1||72.5||||$6b||30.1||32.4||||$ab||3.2||4.3||||$eb||-49.8||-50.6
|-
|$2c||67.3||71.5||||$6c||29.7||31.9||||$ac||2.7||3.8||||$ec||-51.8||-52.4
|-
|$2d||66.4||70.6||||$6d||29.3||31.4||||$ad||2.3||3.4||||$ed||-53.7||-54.1
|-
|$2e||65.6||69.7||||$6e||28.8||30.9||||$ae||1.8||2.9||||$ee||-55.5||-55.8
|-
|$2f||64.8||68.8||||$6f||28.4||30.4||||$af||1.4||2.4||||$ef||-57.3||-57.4
|-
|$30||64.0||68.0||||$70||28.0||30.0||||$b0||1.0||2.0||||$f0||-59.0||-59.0
|-
|$31||63.1||67.1||||$71||27.5||29.5||||$b1||0.5||1.5||||$f1||-59.0||-59.0
|-
|$32||62.3||66.3||||$72||27.1||29.0||||$b2||0.0||0.9||||$f2||-59.0||-59.0
|-
|$33||61.5||65.5||||$73||26.6||28.6||||$b3||-0.3||0.4||||$f3||-59.0||-59.0
|-
|$34||60.7||64.7||||$74||26.2||28.1||||$b4||-0.8||-0.0||||$f4||-59.0||-59.0
|-
|$35||59.9||63.9||||$75||25.7||27.7||||$b5||-1.3||-0.5||||$f5||-59.0||-59.0
|-
|$36||59.2||63.1||||$76||25.3||27.2||||$b6||-1.8||-1.1||||$f6||-59.0||-59.0
|-
|$37||58.4||62.3||||$77||24.8||26.8||||$b7||-2.3||-1.6||||$f7||-59.0||-59.0
|-
|$38||57.6||61.6||||$78||24.4||26.4||||$b8||-2.8||-2.2||||$f8||-59.0||-59.0
|-
|$39||56.9||60.9||||$79||23.9||25.9||||$b9||-3.3||-2.8||||$f9||-59.0||-59.0
|-
|$3a||56.1||60.1||||$7a||23.5||25.5||||$ba||-3.8||-3.3||||$fa||-59.0||-59.0
|-
|$3b||55.4||59.4||||$7b||23.0||25.1||||$bb||-4.3||-3.9||||$fb||-59.0||-59.0
|-
|$3c||54.7||58.7||||$7c||22.6||24.7||||$bc||-4.8||-4.5||||$fc||-59.0||-59.0
|-
|$3d||54.0||58.0||||$7d||22.2||24.2||||$bd||-5.3||-5.1||||$fd||-59.0||-59.0
|-
|$3e||53.3||57.3||||$7e||21.8||23.8||||$be||-5.9||-5.7||||$fe||-59.0||-59.0
|-
|$3f||52.6||56.6||||$7f||21.4||23.4||||$bf||-6.4||-6.3||||$ff||-59.0||-59.0
|}

Latest revision as of 16:10, 14 April 2024

Subpages

DSM/ECU/Pretty disassembly notes[1]

DSM/ECU/ECU Numbers [2]

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

ECU troubleshooting and daughterboard [RUS]

Photos

DSM-ECU Yahoo! Group Archives

ECU numbers

EDM ECUs

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

[3]

See Also: DSM/ECU/ECU Numbers[4]

EPROM images

Input/Output

Sensors

ISC

Alternative pinout

Registers

Editing notes

E931 disassembly with comments

2G ECU

ROM Image

95 EPROM:

XDF:

Processor info

Docs


Toshiba Microprocessors


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]

MH6111 Instruction Set

Procs Docs Tossed

Related?

Disassembler

Suzuki ECU

(Uses MH6X11)

Mazda ECU

Mods

Dis/assembly

PCB

ECU power

Standalones


AEM

Megasquirt

Speeduino

Link ECU (VR4LINK)

Haltech

ECU+

rusEFI

PowerFC

Stims

Speed Density

Kim Hulkkonen

SwD-Swede Density

ds-map

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

Geekmapped

Knock

Bill Sundahl - [email protected]

Pinout, functionality

Phantom knock

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?

See Also

Notes

  1. ↑
  2. ↑
  3. ↑
  4. ↑
  5. ↑ https://www.club3g.com/threads/general-questions-about-2001-montero-sport-6g72-rom.159492/post-3291599
  6. ↑
  7. ↑
Retrieved from "https://janehacker.ca/wiki-int/index.php?title=DSM/ECU&oldid=1493"