20 Jul
2010
20 Jul
'10
12:41 p.m.
With a serial port, you can turn an old machine with
two serial
interfaces into a snooper and capture the traffic, or use an old
HP4951 protocol analyzer (I have more than one) which is _really_
designed to snoop sync, async, RS-232, RS-423, etc. We even used one
to simulate an IBM PU Type 4 to trace our product's code (a PU Type 2
emulator) and how it handled various bits in the BIND sequence.
RS-232 is such a pain, I just had some problems recently. I had never
thought of using my PC as a way of snooping serial traffic. I have two
serial ports on my machine. Does anyone know of any good software to do
this? I could always write it myself, but it would be nice if there was
already something there.
Regards
Rob