Intro to microcontrollers (long)

[Marc Randolph]

On Thu, May 27, 1999 at 06:23:35AM -0700, TK wrote:
> So should I switch and say "concentrate on the program first and then the
> tables?"

Absolutely not!

By far, most people aren't going to care about how the program runs.
I've found it useful to understand the code, because it allowed me to 
(1) verify the tables did what I thought they did, and
(2) in the cases when GM introduced new tables [on newer EPROM's],
the program code allowed me to locate some table entries that I wanted
to change, but couldn't pick out just by staring at the tables.

> I was just trying to help.
> 
> Terry Kelley

As we all are,

   Marc  (not very rabid)


> -----Original Message-----
> From: Mike Pitts <mpitts at emi.net>
> To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
> Date: Thursday, May 27, 1999 4:54 AM
> Subject: Re: Intro to microcontrollers (long)
> 
> 
> >
> ><<Even the most rabid of us GM ECM hackers don't change the program
> >code, only the data tables>>
> >
> >To date I've made code changes for:
> >
> >1227148
> >* Anti-theft
> >* Anti-tamper
> >* Dial-a-blocklearn
> >
> >16198625
> >* 1-bar to 1,2 or 3-bar MAP conversions
> >* Writing into EEPROM and RAM with ALDL command
> >* Extra fueling based on boost
> >* Timing retard based on boost
> >* Lots of little patches to enable boost in a N/A PCM
> >
> >Is that rabid enough? 8-)
> >
> >Growlllllll
> >
> >-Mike

-- 
  Marc Randolph     -    mrand at pobox.com    -     PGP keyID: 0x4C95994D