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From: "kenny" <kennychen AT seed DOT net DOT tw>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: How to specify the COM port for GDB remote debug
Date: 25 May 2006 16:56:46 -0700
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Thanks,
 Now it is work!


decker 寫道：

> 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