How to Intercept Serial Port?

[CHANGE USERNAME TO westes]

I need to examine the traffic on a serial port in order to debug a problem
with a tape library firmware upgrade. Is there any software tool that will
let me mirror to a window the input and output on COM1 or COM2?

If not, then is there an external black box that I can put on the serial
port that would copy input and output from the serial port to some other
output, either another serial port or a telnet port?

 

[Dave Patrick]

Nothing to do with the operating system.

--
Regards,

Dave Patrick ....Please no email replies - reply in newsgroup.
Microsoft MVP [Windows NT/2000 Operating Systems]
Microsoft Certified Professional [Windows 2000]
http://www.microsoft.com/protect.


:
| I need to examine the traffic on a serial port in order to debug a problem
| with a tape library firmware upgrade. Is there any software tool that
will
| let me mirror to a window the input and output on COM1 or COM2?
|
| If not, then is there an external black box that I can put on the serial
| port that would copy input and output from the serial port to some other
| output, either another serial port or a telnet port?
|
| --
| Will
| westes AT earthbroadcast.com
|
|

 

[Bob I]

The search term is "breakout box"

 

[CHANGE USERNAME TO westes]

Couldn't someone write a Windows 2000 service that intercepts calls to the
serial port, makes copies of characters going either direction, and then
passes those on to the normal Windows 2000 serial port driver?

 

[CHANGE USERNAME TO westes]

Every RS-232 breakout box I have ever seen is essentially just a monitor for
electrical status on pins of the cable, along with some pins to help you
rewire. I don't need to reverse engineer a pinout. The straight through
9pin RS-232 cable works fine. What I need to see is the character stream
that travels over that cable.

 

[Dave Patrick]

Might be, but the subject is still off topic here.

--
Regards,

Dave Patrick ....Please no email replies - reply in newsgroup.
Microsoft MVP [Windows NT/2000 Operating Systems]
Microsoft Certified Professional [Windows 2000]
http://www.microsoft.com/protect.


:
| Couldn't someone write a Windows 2000 service that intercepts calls to the
| serial port, makes copies of characters going either direction, and then
| passes those on to the normal Windows 2000 serial port driver?
|
| --
| Will
| westes AT earthbroadcast.com

 

[CHANGE USERNAME TO westes]

Do a search on "serial port" spy on Google and you will find at least one
dozen Windows 2000 applications that do exactly what I had asked for.

The one I have settle on is Portmon by Sysinternals. Another really
interesting one was Eltima's Serial Splitter, which lets two different
applications share one serial port read-write, using virtual serial ports.