serial communcations in a Performer world...

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Dwight Meglan (dwight++at++ht.com)
Thu, 15 Feb 1996 14:55:03 -0400

This is a bit off of Performer and graphics but surely a number of people
on this list must have dealt with this issue in building immersive
environments with Performer.

We have a custom interface device (a arterial catheterization tracker to be
exact) which uses serial communications with our Performer-based
catheterization simulation app (its a medical procedure training
simulator). We have found there is a 30ms delay in sending commands out the
serial port and the same for getting info back in -- e.g., if we send and
receive data from port1 to port2 it takes 60ms.

I know that we can run a separate thread with shared memory but if possible
we want to lessen the lag time by reducing the delays in talking to and
reading from the serial ports.

Would anyone be able to suggest how to go about setting up the ports for
faster I/O ?

Thanks,

--dwight

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