[Gmecm] More '730/$8D tuning questions...

Clair Davis clair.davis
Fri Apr 20 02:09:50 UTC 2007


Hank,
I have already put "AA" in the chip code mask line to disable the checksum.
Tunerpro has a provision in the software to do that automatically when
uploading the .bin to the emulator, but I did it manually so I'd remember.
Before I figured out the issue with the checksum, I couldn't get it to start
at all, and it hasn't been a problem since.  The checksum value itself is
not the same among the .bin's I'm looking at, but I ASSume that's normal?

Robin, I'll send you the AXXC I have and the last attempt I made at cleaning
up the bin I started with off list.  TP has a compare function that's pretty
nice, but you have to go item by item rather than one fell swoop.  I'd
appreciate any effort you can make.


Clair


----- Original Message ----- 
From: <dozierhc at aol.com>
To: <gmecm at diy-efi.org>
Sent: Thursday, April 19, 2007 1:18 PM
Subject: Re: [Gmecm] More '730/$8D tuning questions...


> Claire...
>
> Are you checksumming the EPROMs or at least disabling the checksum
algorithm by placing an "AA" at the Program ID location ($8008?)  This could
certainly cause this type of action.
>
> I would burn an EPROM with the $8D set to "$AA" at location, or checksum
what you have again and manually update the locations $8006-7 with the
resultant checksum and try that.
>
> Hank
> ------------------------------
>
> Message: 8
> Date: Thu, 19 Apr 2007 06:57:54 -0500
> From: "Clair Davis" <clair.davis at charter.net>
> Subject: Re: [Gmecm] More '730/$8D tuning questions...
> To: <gmecm at diy-efi.org>
> Message-ID: <003201c78279$f6eb06c0$03000004 at davis>
> Content-Type: text/plain;   charset="iso-8859-1"
>
> Yes, they are both $8D, and I was surprised, too.  With the emulator
(Moates
> APU-1) in place, it's not a problem of a chip not burning right, and the
> bin's can be swapped around easily.  I think I need to do a bit more
> research on other 5-speed calibrations and see which ones will load up and
> idle without a hitch.  The only error code I could retrieve was "12", so
> that's not very revealing, either.
>
> Clair
>
>
> ----- Original Message ----- 
> From: "Robin Handley" <Robin at FuryWorld.fsnet.co.uk>
> To: <gmecm at diy-efi.org>
> Sent: Thursday, April 19, 2007 1:45 AM
> Subject: Re: [Gmecm] More '730/$8D tuning questions...
>
>
> > > right up when I reloaded the bin I was driving with last weekend.  I
> > > couldn't even get the ALDL to synch up until the last bin was loaded.
> >
> > I'm surprised by this. Aren't the two .BINs you're using both $8D? If
so,
> > AIUI, the only difference should be the lookup values, so why would the
> ALDL
> > be affected?
> >
> > Robin
> >
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