> Would appreciate if anyone could help me trace a suitable Intelligent
> Serial Card to save us reinventing the wheel.
> Ideally this ISA Bus or PCI Bus Board will have at least 4
> High Serial Ports - RS232 / RS422 Configurable, up to 38,400
> Baud & on board processor or microcontroller [eg, MC68302,
> MC68332 or similar] for which we will write our own application.
I have used intelligent 8-port RS232 boards from Stargate Technolgies
before and was quite happy with them. As I recall the board was built
around an Intel 80186. I don't remember what the upper limit was on
speed and I don't remember if the ports could be configured as RS422
or not. Boards came in ISA and MCA variants but that was four years
ago. I'm sure they have a PCI version by now.
The board I used came with DOS drivers but was easy enough to talk to
directly. We ended up not using the drivers. I believe each RS-232
channel was given a certain abount of shared memory (2kB?) which was
split equally into transmit and receive buffers. You could set high
and low water marks on the buffers to determine when to bother the PC
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Charlie Hubbard | As the great philosopher Bingo once
http://www.owt.com/users/chubbard | Java is its name-o."