RE: [CAD_CAM_EDM_DRO] More EMC Conversations w/ Controller Boards

> -----Original Message-----
> From: jackw19x <jmw@...> [mailto:jmw@...]
> Sent: Monday, January 20, 2003 5:41 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] More EMC Conversations w/ Controller Boards
>
>
> From previous posts I get the idea that servo motion control boards
> like Servo-to-Go, Pico and similar boards are what lab people would
> call a multi-i/o board: some DAC's, digital IO capabilities,
> interrupts and clock-timers. (OK, not every I/O board has quadrature
> decoders, but some have 24-bit counters which is getting close.)
>
> Think it would be possible for a mere mortal to get EMC to
> communicate with a MIO board over the ISA or PCI bus? I guess the STG
> team managed to do it ... The thing is, these boards turn up cheap
> once they're a generation down.
>

Yes, this can be done. I have not done it with EMC, but I have written
software for Linux to drive digital I/O cards on the ISA bus. While I
wrote my drivers from scratch (for 8255 PIA chips) I have seen drivers
available for other boards and buses. Search for COMEDI on the net.
Some of these should be able to be used with RTAI or RT linux.

Marshall