Schematic for 730 ECM?
Thread Starter
Senior Member
iTrader: (2)
Joined: Aug 2014
Posts: 575
Likes: 0
From: Fort Collins, CO
Car: 1991 Firebird Formula
Engine: 5.7L TPI
Transmission: 700r4
Axle/Gears: 3.23
Schematic for 730 ECM?
Anyone know if there exists a schematic for the 730 ECM? I'm poking around in AUJP code and a lot of these things would make a lot more sense if I could glance at what is connected to what. I'm talking about a schematic of the actual board itself, not the wiring diagram from the ECM to the sensors and such.
Joined: Dec 2004
Posts: 16,752
Likes: 996
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Thread Starter
Senior Member
iTrader: (2)
Joined: Aug 2014
Posts: 575
Likes: 0
From: Fort Collins, CO
Car: 1991 Firebird Formula
Engine: 5.7L TPI
Transmission: 700r4
Axle/Gears: 3.23
Re: Schematic for 730 ECM?
Ah very helpful thanks! While I'm asking, it looks like some registers are in non-standard places around 0x4000. Is there a datasheet for the chips used for these ECMs or are they proprietary versions of the 68HC11's to a certain extent?
Moderator
iTrader: (1)
Joined: Mar 2002
Posts: 18,432
Likes: 233
From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Thread Starter
Senior Member
iTrader: (2)
Joined: Aug 2014
Posts: 575
Likes: 0
From: Fort Collins, CO
Car: 1991 Firebird Formula
Engine: 5.7L TPI
Transmission: 700r4
Axle/Gears: 3.23
Re: Schematic for 730 ECM?
Figured as much. Are there mapped out regions where either registers or memory-mapped peripherals are? Essentially anything which is not OK to move to a different variable or memory location? I'm sure I can figure it out eventually by reading the ASM comments but if someone has the whole range off hand that would be nice.