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TCC in $8D, What's the deal?

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Old May 4, 2005 | 11:54 AM
  #1  
JP86SS's Avatar
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From: Browns Town
Car: 86 Monte SS (730,$8D,G3,AP,4K,S_V4)
Engine: 406 Hyd Roller 236/242
Transmission: 700R4 HomeBrew, 2.4K stall
Axle/Gears: 3:73 Posi, 7.5 Soon to break
TCC in $8D, What's the deal?

I came across some discrepancies when building an XDF for the AUJP.
There are parameters and tables from L8320: to L834B: that are not used in the code anywhere that I see.
With the exception of L833B used in one place but doesn't appear it does much.
The terms I see between my ecu and hac are revered for lock and unlock and am trying to fix it for good.
Are these used by indexed addressing and I'm just missing it?
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Old May 4, 2005 | 05:31 PM
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Indexed stuff:

Code:
        LDX     #L831F          ; TCC CALIB, 40
                                ; MOVE TO LOW GEAR TBLS
LE114:  LDAB    #15             ;
        BRCLR   L004A;$01,LE11E ; BR IF TCC NOT LOCKED
                                ;
        INX                     ; IF LOCKED
        INX                     ;
        LDAB    #1              ;
The INX's advance (increment X) to the next cal location(s).

As for the lock vs. unlock tables, this can be mind bending. A 'lock' table may mean 'we are locked, this is what is required to unlock.' The reverse of what is expected.

RBob.
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Old May 4, 2005 | 07:49 PM
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JP86SS's Avatar
Thread Starter
Supreme Member
20 Year Member
iTrader: (1)
 
Joined: Apr 2004
Posts: 3,180
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From: Browns Town
Car: 86 Monte SS (730,$8D,G3,AP,4K,S_V4)
Engine: 406 Hyd Roller 236/242
Transmission: 700R4 HomeBrew, 2.4K stall
Axle/Gears: 3:73 Posi, 7.5 Soon to break
Thanks for clearing that up...(I think )
It really is a mind bending experience.
I read through it once and then say "ok", then read it again and say "no friggin' way" that's the other way.
I think its going to take me playing with the values to get a good understanding of the direction they are leading.
I'm sure there will be more questions on the indexing and switching around of the TCC stuff, so I pray you will bear with me.

On a side note,
I did find your old writups on the 747 fueling, IAC and others.
Good reading for sure. Been through then about 5 times and still want to read them again.
Everyday is a new adventure with this stuff
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