Newsgroups: comp.robotics
Path: brunix!uunet!snorkelwacker.mit.edu!news.media.mit.edu!fredm
From: fredm@media.mit.edu (Fred G Martin)
Subject: Re: Miniboard 2.0 & NMI F68HC11
Message-ID: <1992Aug26.140433.18849@news.media.mit.edu>
Keywords: Miniboard FORTH
Sender: news@news.media.mit.edu (USENET News System)
Organization: MIT Media Laboratory
References: <1992Aug26.031407.15453@panix.com>
Date: Wed, 26 Aug 1992 14:04:33 GMT
Lines: 17

In article <1992Aug26.031407.15453@panix.com> reynolds@panix.com
(Brian Reynolds) writes: 
>Does anyone know if I can drop a New Micros Inc. F68HC11 FN V3.5 FORTH
>based 68HC11 into the miniboard and expect it to work?  The F68HC11
>has 512 bytes EEPROM, 512 bytes RAM and 12KB of ROM (used for
>Max-FORTH).  I have the data sheet and can type in the pin out for the
>chip if that will make any difference.

Yeah, it will work.  The pinouts of the two 6811's are exactly
compatible (the Forth chip is 52 pins, right?).  The one problem I
foresee is some weirdness with the serial line (the Mini Board
hardware echoes every character it receives).  You might have to write
your own terminal program to discard these extra characters, because I
think the Forth chip performs its own software-echo of incoming
characters (to display them on your terminal screen).

	-Fred
