[visionegg] 18 bits of output on parallel port?

Hello,

We've decided to switch over to Vision Egg from our in-house DOS based
stimulus system. So far, we're very impressed with everything it has to
offer. Good stuff!

We need to output a 16 bit number from the stimulus computer on
potentially every screen refresh (we're likely getting a 200Hz Iiyama
HM903DT monitor with a Radeon 9200 or 9800), plus an extra two bits for
status, for a total of 18 bits. We'll be reading this off with digital
lines on a DAC board on our separate acquisition computer. After a
glance at the documentation, it looks like there's a built-in LPT module
in Vision Egg, and then there's also the separate winioport. Both seem
to limit the number of output bits to 8, which I think is the standard
protocol for parallel ports. Is there any way to take control of the
other pins for output use?

Thanks,

Martin Spacek
PhD student, Graduate Program in Neuroscience
Dept. of Ophthalmology and Visual Sciences
University of British Columbia, Vancouver, BC, Canada
604-875-4555 ext. 66282
mspacek@xxxxxxxxxxxxxxx
http://swindale.ecc.ubc.ca

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