Logic Analyzer Interface to a 3b1 (Please Help)
Silvio Picano
picano at en.ecn.purdue.edu
Thu Feb 28 06:39:18 AEST 1991
Hi, I am hoping someone may have done the following or
could point me in the right direction.
I am trying to connect an HP logic analyzer to my AT&T PC
to get analyzer screen printouts. Now the analyzer
has an RS232C port and can be configured to use several
handshaking protocols (e.g., Xon/Xoff). My major concern
is the difficultly(ies) in accessing the AT&T serial port
(combo expansion board) and writing the 'data-collecting
driver routine'.
The ideal operation(?) is,
1. HP analyzer sends data (already suited for Epson prints)
2. the AT&T collects ALL the data (in the background,
interrupt driven)
3. then, the AT&T sends the (raw, already formatted) data
to the printer
------------
| AT&T 7300 |
| (3b1) PC |
------------
/ \
/ \
RS232C Parallel Port
/ \
/ \
---------- -------
| HP Logic | | Epson |
| Analyzer | | fx286 |
---------- -------
My documentation is scarse and not at a 'low enough' level
to accomplish this 'data-collection driver'. I am hoping
someone may have done something similar (maybe some code??)
and can provide useful hints on doing the above.
I will summarize if I get replies.
Thanks In Advance
Silvio picano at ecn.purdue.edu
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