68HC11

[Bill Shaw]

How about using a new GM PCM?  There was mention on this list recently that
they cost $190 (how can they do that?).  Their code is in flash so it's
easily re-programmable,  they have a 68332 CPU which is much more capable
than the hc11 or any PIC.  Does it have a BDM (background debug mode) port?
If not it can probably be grafted on.

If they're REALLY $190 (I've heard elsewhere $1000) it seems to be a much
more cost effective platform than the EFI332 board,  and it has already
been thoroughly debugged,  has all the industrial strength connectors,  and
all the noise problems solved.  Just trash the GM code and add your own
custom code.

BTW - I have a REAL hard time believing that NASA writes 15 million lines
of code for each launch.  They'd NEVER get off the ground!

bcnu

bs

>
>Bruce. I've been over this issue and suggest the HC12 because it's faster,
>has a
>BDM connection, and is instruction compatable with the HC11. There is a
>version
>with 32K EEPROM. I have the URL at work - will add later.
>
>There are also PICs available that do pascal or basic --------- I'm using
>a PIC
>in my fuel pump comtroller. easy to do simple things in a very small PIC.
>
>http://www.controlplus.nl/
>http://www.melabs.com/mel/home.htm
>
>and a third option - I can't remember the name but it's fast and high level
>programmable. a one chip solution for simple efi.  More later TWS
>
>------------------------------