Try this Link
                http://www.xs4all.nl/~jwasys/old/diy2.html
 Bill

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Josh Koffman
Sent: 10 June 2002 20:27
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE]: USB-based LA?


I posted once regarding a software package called DigiTrace. It's fairly
limited, but basically it just uses your parallel port and some software
to come up with an 8 channel LA. It's pretty good for free...saved my
butt numerous times. The cable lives in my laptop case and comes in
really handy when there is no scope around. I highly reccomend it...I
tried to contact the author to express my gratitude, and perhaps help
develop a small buffer that might improve functionality. He never
responded. Pity.

Have a search through the archives for my post, it will have the link.

Josh Koffman
--
A common mistake that people make when trying to design something
completely foolproof is to underestimate the ingenuity of complete
fools.
        -Douglas Adams


Joe Farr wrote:
>
If you do go for bitscope or one of the others, I'd be interested in how
you get on. It's not a piece of equipment I'd use a lot but there are
time when one would be very usefull.
>
> Joe.
>

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