DOS box not seeing clock \ VOGONS

DOS box not seeing clock

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First post, by Steeve

Posted on 2010-01-31, 20:24

Steeve Offline

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Posts: 3
Joined: 2010-01-31, 20:02

I'm trying to run an old DOS Pascal program in the DOSbox of a DEll latitude C800 laptop XP machine. It all works fine except some of the incoming data from the serial port are not displayed because (I think) it needs the time clock from the pc to plot the incoming data against time (so no data gainst time are displayed) - but the data are getting through because there are boxes showing the incoming values, it just doesn't do the graphs.

The program takes data from an underwater sensor that sends the depth the sensor is underwater and plots it against time. The other displays for e.g. temperature against depth are displayed fine (because no time needed for these).

Is there something I can put into the config file (as I did to get it to see the serial port data which are displyed OK as numerical values but not as graphical plots) to get it toi pick up the timer signal?

Any ideas, thanks.

Reply 1 of 4, by ripsaw8080

Posted on 2010-01-31, 21:05

ripsaw8080 Offline

Rank DOSBox Author

Rank: DOSBox Author
Posts: 5104
Joined: 2006-04-25, 23:24

DOSBox supports most timing methods used by DOS apps, with the notable exception that it does not allow setting the time via INT 21/2D; however, the timer ticks in BIOS memory can be changed directly. There are probably many reasons the app might not work right (DOSBox is intended for games), but if you're right about the clock being the issue, you could try booting real DOS inside DOSBox to see if that solves it.

Reply 2 of 4, by Steeve

Posted on 2010-02-01, 10:02

Steeve Offline

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Rank: Newbie
Posts: 3
Joined: 2010-01-31, 20:02

Thanks for reply. Have tried to boot DOS in DOSbox but can't see how to do it. I usually boot DOS either by clicking on a DOS exe program or from DOS box command prompt in Accessories. Properties wasn't much help in finding the command line ...