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From:	Andrew Cottrell <andspamtrap DOT aty DOT exemail DOT doty DOT com DOT dot DOT yau AT unknown DOT addr>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Is there any code for DJGPP to access COM
Date:	Tue, 31 Aug 2004 19:03:39 +1000
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>I am now working on communicate via UART(RS232), I
>want to write/read data via rs232.
>I wonder whether there is any code or libary for DJGPP
>to init open the com port? My system is win2k.
>Any advice will be appreciated.

There are a number of comms libraries for DJGPP. 

Now for some things to consider:-
- Some also work with Linux. 
- Some support wakeup mode (aka 9 bit). 
- Some support only one com port and other support up to 16/32/64 (I
can't remember as I only used a maximum of 2 at a time.
- Some have a C++ wrapper available for them (never used the wrapper)
- Some are all in assembly
- Some need to be modified to use the latest GAS (GNU Assember)

To start with have a look in the V2TK directory and see what is in
there. I personally have used DZCOMM and PMCOM over the years. The
latest DZCOMM is available from sourceforge. I have a beta of PMCOM
1.1 if you decide to use PMCOM.

I also have a data sniffer available with full source that I can send
you that I license under the GNU GPL license. It uses PMCOMM and bits
from ALEGRO for keyboard and timing. If you want this then let me know
and I will email it to you, its about 300K zipped from memory.

Andrew

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