AA80E 8-speed
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Re: AA80E 8-speed
Jim
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Re: AA80E 8-speed
I've not been able to find anything on the B&G page that tells.
Jim
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Re: AA80E 8-speed
Are there two very different versions of the v5201 code, one being diy and the other not?
I have managed to get projects to load now without errors by copying and moving files around and changing and adding paths but I don't really know what I'm doing there. It seems if I open a different project and try to cure the path errors it breaks other projects that I had gotten to work.
Should I just delete all the project files I have now and start over? If I do that, which download is going to be the easiest to work with? V5xxx seems the most complete but V5_diy was the one I was able to get to open without errors. Help?
Jim
btw, I was able to find PT6 and AD4 in the ports_pins.h file and also in the main.c file. Is that where the change needs to be made to switch them?
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Re: AA80E 8-speed
The processor is a MC9S12C64CFA running at 24Mhz.
Yes, the diy code and the 5.201 release code are different because of the conditional #ifdef's to reduce the size, but also because the the number of files has been reduced by combining a lot of files the were previously #included'd. If all the #ifdefs are commented out, the 5.201 and diy code should be the same.
You will have to decide how best to swap pins. You cant just 'reassign' pins, as the C code only deals with bytes (i.e. whole ports with 8 pins) at a time rather than individual pins (which are accessed by applying AND|OR conditions on the 8-bit port registers).
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Re: AA80E 8-speed
Jim
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Re: AA80E 8-speed
Jim
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Re: AA80E 8-speed
Maybe, or at least I do hope, I might be able to start with the more serious business of decreasing the assembled file size. To that end I suspect I should try to compile the two test programs first to make sure I can do that. Probably I will get a file size error, but hopefully nothing else. Then I hope I can start looking for things to comment out. I'll try a couple of those, recompile, rinse and repeat. After I get the first one small enough to eliminate the expected file size error I expect to try it to see if I can get it to load in the GPIO. Then do the other one. Then make copies. Then maybe remove the surplus comments and test again. And if it loads, make copies again. After all of that I can go looking for the pins I need to swap and the output pulse I need to create.
This is gonna take awhile.
Jim
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Re: AA80E 8-speed
I'm working for a prominent tuner shop in Western Canada.
There is a great deal of work with Toyota transmissions in my immediate future.
thank you all for your massive efforts here.
-John
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Re: AA80E 8-speed
I do know that there are two existing aftermarket controllers for it. One costs about 5-6 grand and the other uses two microsquirt controllers linked by CAN bus to do the job. I'm not sure how good either one is, but if I was starting over I think I would at least consider the dual microsquirt approach. Costs a lot more than the GPIO but at least it reportedly works. Can't say that for this one, at least not yet. I have no idea what it costs to get that one, whether you have to buy it as a completed unit, can buy the mS units separately, or if the program to run them comes with a big price tag. If it's left up to me to sort this one out, I regrettably can offer no reassurances that it will ever get done either, as that would be patently unfair to anyone coming down the path. To be completely honest I don't know what the F*** I'm doing. But I will continue to try.
Jim
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Re: AA80E 8-speed
http://www.chevrolet.com/performance/tr ... e-lt4.html
It costs $5K but that includes the controller and harness. I have that much in the AA80E so far and it doesn't work yet. If spring comes around and it still doesn't work I will look at my finances and very likely throw in the towel, order this one from GM and be done with it. Anyone who wants to carry on will then be welcome to buy what I have for a fair price. The transmission has 20K miles on it, I paid a couple grand for it. It is the genuine article out of the Lexus IS-F, not the lesser unit from the sedans.
I want to thank everyone here for all their help, most particularly Lance. I'm just not a programmer, never have been and never will be. I've tried. Seriously, doggedly, and persistently and it just isn't me. I do still think very honestly that this will work. I lack the ability to do it. A man has to know his limitations. It was a speculative investment, and it didn't pay off. It'll soon be time to cut my losses, and to be honest I can hardly wait. I really do want to drive the car and I'm not spending the next summer without it.
Jim