From: Ruud Baltissen (
Date: 2001-02-05 07:43:52

Hallo Robin,

> Are there (and if so, can you provide URLs, etc.) Windows
> based programs that will analyze/sniff a COM: port and provide
> a nice hex dump log of everything that has gone in and out?

I don't know any. But the problem with Windows is that cannot access the
hardware in a direct way; you'll need DLL's to do the job. And I haven't the
slightest idea how to do this. (If any one has some info about the basics of
it, please)
This is one of the reasons I still work with DOS as long as HW is involved.
In that case you can access the UART's directly using C or Pascal. AFAIK you
won't have problems accessing the HW using Linux and C.
At this moment I haven't any info at hand but at home I have a small Pascal
program I use to search/test a COM-port. This includes sending/receiving
data. Using this one it should be not a problem writing a sniffer in the
language you prefer.

> It must be Windows based as that's what the software included
> with these gadgets works with.

Why? RS232 is OS independent, or do I miss a point?

Groetjes, Ruud

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