OKI M66xxx MCUs

[Bruce Plecan]

-----Original Message-----
From: Adrian Teo <adrian.teo at asu.edu>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Wednesday, October 14, 1998 7:48 PM
Subject: OKI M66xxx MCUs


Your call about if this is a help, but, I've seen mention is some of the
import magazines of removing a chip and soldering in a daughter
board.
Bruce


>Ok here goes my first full fledged DIY-EDI post.
>
>I was wondering if anyone on this list has any experience with the OKI
M66xxx
>series Microcontroller, in particular the ones used on Honda ECU's.
>
>I'm trying to extract the fuel map etc from several of these ECU's but some
of
>them come with the maps "hardcoded into the chip" (?) and hence no EPROM is
>present in the ECU. There are provisions for an external EPROM socket which
I
>assume can be configured to override the hardcoded program on the main
chip.
>
>The MCU in particular is a OKI M66207 MCU which comes in a 68 pin PLCC
format.
>Any suggestions (constructive or otherwise) are greatly appreciated.
>
>Thanks!!
>
>-AT
>
>--
>------------------------------------------------------------------------
>Adrian Teo                               e-mail: adrian.teo at asu.edu
>System Administator
>Instruction Support, Arizona State University
>Ph: 602.965.9411                         http://hybrid.honda-perf.org
>Fx: 602.965.2724     Pg:602.204.1831     e-page: adrian at falcon.asu.edu
>------------------------------------------------------------------------
>