Re: Dosemu serial port problem

[James Courtier-Dutton <James@superbug.co.uk>]

Horváth András wrote:
> 
> There is a hardware that needs to talk to a dos program running inside
> dosemu through the com (serial) ports. This is a telephone register
> program. The serial cable is connected to COM1 and the
> /etc/dosemu/dosemu.conf is setup with $_com1 = /dev/ttyS0 (ttyS0 exists
> in the dev folder).
> 
> Unfortunately it doesn't seem to work. Though i worked ONLY ONCE! :) The
> developer of this particular dos program checked the serial port with
> another dos program that tests if it works, and it did. Only in this
> Telephone register program it doesn't work.
> 
> Could anyone point me out to the right direction or forum to ask for
> help, or give me any ideas?
> 

Try the same program with dosbox    http://www.dosbox.com/

I have found dosbox to have much better serial port control than dosemu.
For example, on one program I have, dosemu hangs trying to access the 
serial port, but dosbox works fine with it.
On closer inspection, I discovered that dosemu tends to work ok with dos 
programs that use the serial fifo. For dos programs that do not use the 
fifo, dosemu fails.

Kind Regards

James


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