EECTuning.org

ollopa

I did some research on DIY book scanning and came across these two very doable projects: Book Shooter MK V: https://www.youtube.com/watch?v=FZcYIXseXkg Easy Book Scanner: https://www.youtube.com/watch?v=ne-h7FTMZBk https://www.instructables.com/Book-Scanner-Low-cost-easy-to-make-1000-pages-an-h/ The...

ollopa

Want to give a heads-up that I just obtained these and will be scanning and making available when I am able. The wiring wiring guidelines are not that interesting but give guidance about how to build a wiring harness for the EEC. Since it's a binder it will be very easy to scan. The pocket ref is mo...

ollopa

You're missing the bit where register rf6 (rf6:rf7) is loaded with 0x93A8. Your addresses are then relative to that base.
[Rf6+74] = 941C
[Rf6+75] = 941D
[Rf6+76] = 941E
[Rf6+77] = 941F
[Rf6+78] = 9420

ollopa

...I might be able to dust off my old arduino knowledge, and be able to make something that plugs into USB on anything modern. I have something I named the "EEC Slurper" for interfacing to the MBUS from an Arduino board. Although it uses the Arduino hardware it does not use any of their software or...

ollopa

Disappointing. Your schematic will never work in implementation. I'm pretty sure J3 Port Pin 22 is cycled to dump the contents of the ROM. Your schematic doesn't have that connected. That seems unnecessarily rude :( I have to disagree with you. I think it's fairly obvious that the design has actual...

ollopa

According to my basic research, it looks like 8lD(manual trans) and 8LF(auto trans) are in the same family and use the GUFA strategy. Head on over here http://www.eecanalyzer.net/strategies and get the GUFA xlsx. I don't see an 8lF.BIN for download anywhere but that's fine, you don't need that -- yo...

ollopa

What do you mean by "hardware number"? Can you give an example?

ollopa

Don't confuse the catch code with the strategy. 8LD is a calibration catch code for the GUFA strategy. It's pointless to guess, though -- get the catch code off your EEC and post it back here if you need help finding the right strategy for it.

ollopa

It could also be a macro from a macro assembler. Imagine some poor soul kept mismanaging the bank switches and decided to just make a macro that guaranteed a return to a known context. The best signature of a compiler would probably be an (inefficient) convention for parameter passing either by use ...

ollopa

I feel like pointing out that the documentation says the registers are actually implemented as SRAM and refers to them as RAM banks, which is no doubt a source of confusion. And yes, it is crucial for this conversation to make a distinction between external and internal memories and not to confused ...

ollopa

Maybe (maybe not) it is just a coincidence that the handbook talks of Step D and Mask D. Page F2 of the handbook describes a D-STEP DUCE difference. Page D2 of the handbook describes the DUCE support IC as Mask D. D Step memory difference pic from the handbook. EEC-IV-hr_17.jpg Thank you! I think t...

ollopa

The "D" 81C65-D is just address mask option D, isn't it? address mask options.jpg I can't find any documentation suggesting that the CPU needs to be paired with or has revisions associated with the RAM/CART/DUCE chip. Is the VILE EEC using the same 81C65-D / how do its part numbers compare to the P3M?

ollopa

Where in NorCal are you stuck? I'm in Santa Rosa if it's anywhere near where you are. I had one of the very early ELM chips with a UART interface and never got very far with it. The HF scantools, on the other hand, are fairly cheap and I haven't had any complaints with them over the years.

ollopa

calibrationconsole.jpg Got it and added it to my Google drive (see link in first post). I was hoping for more theory of operation and technical bits but it's basically an operator's manual. It does have examples of the DOC cards that calibration engineers would use to navigate a strategy, which I f...

ollopa

I'm interested in who has the physical item, the story of where it came from, and what else they might be in possession of. Also a few pages of the pocket reference are rather blurry and it would be nice to re-photograph them or, better yet, remove the binding and scan them through a ScanSnap or sim...

ollopa

I believe it's over here https://www.merkurencyclopedia.com/EEC-IV/EEC-IV_design.html Specifically https://www.merkurencyclopedia.com/EEC-IV/EEC-schematic.jpg That page also has a very low res B&W scan of a page from the pocket reference. The alignment doesn't quite match the color photos of the sam...

ollopa

Can we configure a wildcard SSL certificate for the site:
https://community.letsencrypt.org/t/acm ... ards/55578

As the current cert is only for eectuning.org, I still get a certificate error if I visit https://www.eectuning.org. A cert for *.eectuning.org would fix it.

ollopa

I've reached out to The Henry Ford / Benson Ford Research Center three times in the past couple of years to discuss gaining access to their calibration console manual. I just got a reply this morning that appears positive but there's a nontrivial fee to retrieve it from storage and make a copy of th...

ollopa

:) Be sure to cruise through the custom IC reference as well. It covers a lot of the same topics but occasionally has a different insight or detail. Both are invaluable!

ollopa

According to the EEC-IV software manual both are signed: 3-2.3.7 SHORT INDEXED ADDRESS MODE The short indexed address mode enables an instruction to access any "A" operand byte or word loca tion within -128 to +127 bytes of a 16-bit base address. The base address is specified by software and is stor...

ollopa

Information wants to be free... That was proven when we were blessed with the Custom IC Pocket Reference Guide. Now after years of sifting through the results of a daily saved search, the complete hardware architecture reference and EEC-IV software manuals emerged and I was able to acquire them. Tot...

ollopa

81C6x Block Diagram.jpg 14-4.4 EXECUTE ENABLE REGISTER (EER) The EER is a memory-mapped 8-bit data holding register that is used to enable and disable the address outputs of the SPC. The SPC address outputs are used to address program instruction locations in RAM. The outputs of the SPC are enabled...

ollopa

Here's some python3 code that calculates ROM_TO value. I tested it against T4M0.bin (CBAZA) (with checksum_end set to 0xFFFD) and as shown for A9M.bin (GUFB). from array import array # ROM BIN file bin_file = 'C:\\EEC\\BINS\\A9M.bin' # Define the checksum range in EEC address space checksum_start = ...

ollopa

You got your answer here https://eectuning.org/forums/viewtopic.php?f=8&t=22975&p=133024&hilit=checksum#p133020 But for anyone else who finds this post and to sum it up succinctly: To calculate a new ROM_TO: 1) Set the current ROM_TO to 0x0000 2) Sum the 16-bit LE words over the checksum range to ge...

ollopa

According to various sources of information... Ford in the 1980's used DEC-20, DEC-VAX, PDP-11, and LSI-11 computer systems for strategy development. They used remote terminals to log into a development environment called VECTOR that ran on DEC-20 and VAX mainframes. VECTOR was developed in-house at...

ollopa

That is the way that I understand decipha's methodology. He also says that at least at 1.0 the NB's are faster responding and more accurate than the WB and dialing in fuel by KAMRF will be easier, faster, and more accurate than eyeballing an AFR meter. I think you'll still use the WBO2 to confirm th...

ollopa

What I'm not totally understanding is how you are using the hegos to tune The open loop WOT fuel... looks like the strategy is to force closed loop at wide open throttle, and then I lose it. I'm reading and retreading your write up and can't figure out what you are doing. Last, I'm curious why you ...

ollopa

What strategy are you using and what is the exact size of the bin file you purchased? Perhaps the bin file has some unexpected padding.

ollopa

Well sorry to necropost but I'm getting into EEC hacking and I find this thread very helpful and interesting. Did ironmanisanemic just give up after all that work? Granted this exercise was a really big ask for someone with no embedded systems experience, but some good progress was being made! Hmm.....

ollopa

So is it accessed via the DAR like other RAM contents?

It sounds like you're saying that normally if you use the RAM's SPC to read, it probably just floats the bus and you get 0xFF's unless the EER was written 0xAA.

Please confirm my ignorance or deny my understanding

Search found 55 matches

Re: EEC Wiring guidelines and Calibration Development Support System Pocket Ref

EEC Wiring guidelines and Calibration Development Support System Pocket Ref

Re: CMPB question.

Re: Historic EEC-V info request

Re: Historic EEC-V info request

Re: newby here cant find strategies on BE should I swap EEC?

Re: Changing the hardware number.

Re: newby here cant find strategies on BE should I swap EEC?

Re: redundant ops, proves compiler was used ?

Re: I've got the EEC Software Manual and Custom IC Hardware Architecture Reference

Re: I've got the EEC Software Manual and Custom IC Hardware Architecture Reference

Re: I've got the EEC Software Manual and Custom IC Hardware Architecture Reference

Re: Project on Reverse Engineering binaries, assembly, coding and learning more about the ECU

Re: I've got the EEC Software Manual and Custom IC Hardware Architecture Reference

Re: I've got the EEC Software Manual and Custom IC Hardware Architecture Reference

Re: I've got the EEC Software Manual and Custom IC Hardware Architecture Reference

Re: Site upgrade and fixes, Saturday July 25th, 2020 12:00AM Central

Re: I've got the EEC Software Manual and Custom IC Hardware Architecture Reference

Re: I've got the EEC Software Manual and Custom IC Hardware Architecture Reference

Re: quick question about indexed ops

I've got the EEC Software Manual and Custom IC Hardware Architecture Reference

Re: Execute Enable Register?

Re: Checksum calculation

Re: Checksum calculation

Re: Back end engineering software from the factory

Re: Calibration vs Tuning J4J1 Why can't I just input known Injector/MAF values and be done?

Re: Calibration vs Tuning J4J1 Why can't I just input known Injector/MAF values and be done?

Re: Trouble opening a existing tune

Re: Who is disassembling 8061 or 8065 code?

Re: Execute Enable Register?