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From: hcooper@esunix.UUCP (Hardware Support)
Newsgroups: comp.sys.ibm.pc.misc
Subject: Re: Using a PC to monitor an external signal (How?)
Summary: using a PC for this?
Message-ID: <2048@esunix.UUCP>
Date: 7 Jul 90 00:22:28 GMT
References: <1990Jul4.215014.29212@mintaka.lcs.mit.edu>
Organization: Evans & Sutherland, Salt Lake City, Utah
Lines: 19
X-Local-Date: 6 Jul 90 17:22:28 PDT


Can I ask why are you going to use a peeCee for this?  Kind of an
overkill, and slightly difficult aunless you plan to use a laptop.

Anyway, you might approach this in several ways.

1. Use a serial port and look for the INT line to toggle.

2.  Use the parallel port (some discussion was done on this already, and
a magazine had an article (RE I think) on doing this as well.

3. Use a small single board computer, like micromints or such.  It would
be pretty easy to writea small program for the 8051 to just read in the
pulses and do some quick calculations on it.  I just think a PC would be
a major overkill for this (granted a system would only run about $250
running on AC, adding about $100 for an inverter if mobile).

-- 
Evans & Sutherland Computer Corp.