SRFERGU@ERENJ.BITNET (Scott Ferguson) (01/05/90)
Is anyone aware of a board for AT-bus's that does plain 16-bit strobed I/O? I've called IKON and National Instruments, and the only 16-bit parallel boards they offer follow the DEC DR-11W protocol, which I know nothing about, but sounds too much like a protocol with funky control signals and opcodes to me. So, I need a board for 16-bit I/O (actually only input; this will take data from a CCD camera) with only a strobe as control. Also, if anyone can give me a brief description of DR-11W, or has any documents explaining it, I'd love to hear from you. Thanks, Scott Ferguson srfergu@erenj.bitnet (201) 730-2339 Exxon Research & Engineering Route 22 East Annandale, NJ 08801
lampi@pnet02.gryphon.com (Michael Lampi) (01/06/90)
The DR-11W protocol is an 'industry-standard' means for bidirectional 16 bit
data transfer between two electronic systems (not necessarily computers).
It has NO data-related protocols, just a couple of handshake lines to indicate
data availability and direction. If you were to think of the absolute minimum
number of signals required for such a mechanism, you would end up with the
same number of control lines as the DR-11W (six, if I remember correctly).
Best of all, you don't have to use them all if you aree unidirectional.
Michael Lampi MDL Corporation 213/782-7888 fax 213/782-7927
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