VOGONS

Search

Common searches

DosBox - serial port already open?

Topic actions

First post, by rickford66

Posted on 
User metadata
Rank Newbie
Rank
Newbie

I have an app that I'm attempting to run on DosBox. It accesses com1, which appears to be hard coded in the app. I verified it was com1 using an old machine. Anyway, I can get com1 to open with DosBox, but this particular app gives an error when it tries to access com1. I've tried Procomm and it works fine. I suspect that DosBox is opening the serial port when it launches, and this app is getting a port already open error that causes it to stop. A guess, I can't be sure because the app doesn't report the source of the error. Anyway, is there anyway I can test this? Is there a way I can close the port before launching the app?
Thanks.

Reply 2 of 2, by rickford66

Posted on 
User metadata
Rank Newbie
Rank
Newbie

What do you mean? I already have it set to serial1=directserial realport:com1. As I said, it works with Procomm, an old Dos terminal program.

One other thing that makes me think DosBox opens the port when it starts up... I get some activity at the serial port when I launch DosBox, and more activity when I close it. I really don't think this should happen. The serial port should have no activity unless something is being sent, regardless of if the port is "open" or not.

Go to top of page Go to top of page
Back to DOSBox General
Close window
Close window