Dosemu and serial port problems

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3 total messages Started by Sawadee Tue, 20 Mar 2001 02:44

#945

Author: Sawadee
Date: Tue, 20 Mar 2001 02:44

29 lines
1944 bytes

I have the latest dosemu running in Mandrake7.2.   I would like to get the
serial ports com1 and com2 working.  I have edited dosemu.conf to assign
com1 and com2 and have the irq running (I think)

dosemu.conf edits:

$_irqpassing = "3 4"          for IRQs 3 and 4

$_com1 = "/dev/cua0"       for com port 1
$_com2 = "/dev/cua1"       for com port 2

If I use a dos port testing program PORTS.EXE it returns info that com1 and
com2 are assigned and have the correct addresses and irqs. (No LED activity
on port tester when this is run)

But when I run any dos program (under dosemu) that uses or tests com1 and
com2 I get nothing. ie.  I have a com port tester (with leds) that shows com
port activity.. Nothing shows..

The same ports on this computer work fine in msdos.

I also get port (led) activity during linux booting when it tests for the
ports.. So I know linux sees the ports.

I assume I do not have something configured correctly in dosemu.  Can anyone
help?

Thanks
Sawadee

Re: Dosemu and serial port problems

#948

Author: allan
Date: Tue, 20 Mar 2001 09:39

10 lines
1437 bytes

have you linked the device (modem) to the ports ? if you have not it will
not respond
try in the /dev/ dir
ln -s /dev/ttyS0 /dev/modem
or ttyS1 whatever your modem is on
the Linux install will automaticlly assign the ports to there relative
(devices) ttyS0 etc...
so all you should have to do is create the link between the two as above
hope this helps
Good Luck !

Re: Dosemu and serial port problems

#955

Author: Sawadee
Date: Tue, 20 Mar 2001 22:12

7 lines
1224 bytes

Hi,
Thanks for the reply,  I am not trying to connect to a modem.. I am trying
to use both comm ports.  This dos program uses both comm ports to talk to
external devices.. They are not modems... Do I need to connect the comm
ports to something to make the work as comm ports?

Thanks

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