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From:	"decker" <bdeck AT lycos DOT co DOT uk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: How to specify the COM port for GDB remote debug
Date:	23 May 2006 22:09:49 -0700
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kenny wrote:
> How do I specify the COM port under DOS box?

You need to knnow for sure what COM port Windows put your Serail port
on. XP supports the 'mode' command, so you can list the actual
available DOS COMM ports. Those COM ports should be available to all
DJGPP programs as '/dev/com?' where ? is your COMM number.

here is an example:
C:\>mode

Status for device LPT1:
-----------------------
    Printer output is not being rerouted.


Status for device COM3:
-----------------------
    Baud:            9600
    Parity:          Odd
    Data Bits:       8
    Stop Bits:       1
    Timeout:         OFF
    XON/XOFF:        OFF
    CTS handshaking: OFF
    DSR handshaking: OFF
    DSR sensitivity: OFF
    DTR circuit:     ON
    RTS circuit:     ON


Status for device CON:
----------------------
    Lines:          300
    Columns:        80
    Keyboard rate:  31
    Keyboard delay: 1
    Code page:      437

C:\> bash
ITHACA04:d:/:bend$ cat /dev/com3
[...stuff from COM3 not very interesting here...]


HTH
Ben Decker
www.caddit.net

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