Date: Fri, 19 Sep 1997 10:20:48 +1100
From: Bill Currie <billc AT blackmagic DOT tait DOT co DOT nz>
Subject: Re: Serial Problems, can you help ??
In-reply-to: <slrn621qag.b22.jll@olivia.nst.dk>
To: jll AT nst DOT dk, djgpp AT delorie DOT com
Message-id: <199709182225.KAA11845@teleng1.tait.co.nz gatekeeper.tait.co.nz>
Organization: Tait Electronics Limited
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On 18 Sep 97 at 8:56, Jorgen Lehmann wrote:

> 
> Hi all, 
> 
> I need to do a little serial communication, using djgpp v201,
> so i got the "bcsio20" package from a ftp-site and did a make..
> 
> It does compile nicely, but it doesn't seem to work...

Hmm, interesting. There's an error in both the documentation and 
term.c (?).  I misspelt `constructor' in the constructor function 
(search for `__attribute__'.

> 
> Even the example programs gives an error message saying something
> like:
> 
> Exiting due to signal SIGILL
> Invalid Opcode at eip=0000b584
> ...
> <some stuff>
> ...
>         ...  program=C:\SERIAL\TEST\STL\TERM.EXE
> ...
> <even more stuff>
> ...

You shouldn't have snipped the stuff, it's very important for 
debugging.  However I think I know what you're problem is. Did you 
delete the supplied serio.o file?  There's a bug in gas that causes 
problems with my serial port code.  There are two ways to fix this: 
comment out the `.text. lines in serio.o, or patch gas (the patch 
(for gas from bintuils 2.8.1) is supplied in the zip file, or I can 
mail you the fixed as.exe).  You realy should read the docs.  This 
problem is mentioned in them (near the bottom of serio.doc).

> 
> After this i tried the "aeasy" package from a "1tk" directory
> but I got the same results  :-(

2.x and 1.x code is not necesarily compatable (especialy driver 
code).

> 
> Am I doing something wrong here ??

Only deleteing serio.o :)

> Should I use another library, and which one ??

There are a couple of others, but I can't say anything about how good 
they are (I've never looked at them).  To be honest, I'ld prefer if 
you stuck with bcsio20, because it would make me feel better (I'm 
biased as it's author, of course:).

> 
> I'd appreciate your help

I hope I've been of some help.
Bill
--
Leave others their otherness.