Stepped on PROM dumps

[Shannen Durphey]

Thanks again Ludis.  Your timing couldn't have been better.  If anyone
wants to know exactly what happens when these files are run, send me a
note.  I've got a bunch of time into trying to figure out a bizarre
closed loop problem they caused. At least it's fixed. 
Shannen

CSH-HQ wrote:
> 
> Geeeez, I'm impressed, how anyone catches that stuff is ammasing.
> I think there are others floating around with the same error.
> Bruce
> 
> >Wow Ludis,,,great catch.....I imagine there could be some very frustrated
> people out there that have tried to use that.......great work
> >-Carl Summers
> 
> >From:  Ludis Langens [SMTP:ludis at cruzers.com]
> >Sent:  Sunday, August 15, 1999 11:52 PM
> >To:    gmecm
> >Subject:       Stepped on PROM dumps
> >
> >The following five '7747 PROM dumps from the diy_efi web site each have
> >one trashed byte:
> > anlz5483  Aksn  Akal  azft9503  asdz9578
> >
> >The last byte of each dump is supposed to be 0x96.  In these five cases,
> >it is 0x00.  Fixing this byte makes the sumcheck come out correct.
> >
> >The 0x96 is a LDAA opcode in the INTegrator fuel adjustment function.
> >If this byte is not fixed (but the sumcheck is), the ECM will keep
> >pulling out fuel as if the INT has gone all the way to zero.
> >
> >--
> >Ludis Langens                               ludis (at) cruzers (dot) com
> >Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/
> >