jbuck@epimass.EPI.COM (Joe Buck) (12/11/88)
I'm looking for a card that plugs into a PC/AT bus, has the bus interface logic and possibly some registers, together with some kind of wire wrap area where we can add our own circuitry. This will be used as a test fixture. I remember working with such a card for the LSI-11 years ago; people have told me they are sure such a beast exists for the PC/AT but I haven't found one yet. A simple software driver for the card would be even better, but it's not necessary. Since I'm way behind on reading news these days (especially this group) please mail (don't post) any responses to me. I'll post a summary of any useful responses I get. Thank you, thank you. -- - Joe Buck jbuck@epimass.epi.com, or uunet!epimass.epi.com!jbuck, or jbuck%epimass.epi.com@uunet.uu.net for old Arpa sites I am of the opinion that my life belongs to the whole community, and as long as I live it is my privilege to do for it whatever I can. -- G. B. Shaw
jbuck@epimass.EPI.COM (Joe Buck) (12/17/88)
Here's what I got: --- From: uunet!trout.nosc.mil!chip!ptw ----------------------------- JDR Microdevices 110 Knowles Drive Los Gatos, CA 95030 800-538-5000 408-866-6200 makes such a device. I have used their model IBM-PR2, which contains bus buffering and decoding for a 32-address block of I/O space. This particular model has only the 8-bit XT bus (which could be used in an AT if you didn't need 16-bit transfers), but I think they also offer one with the 16-bit bus. Its I/O address can be DIP-switch selected for anywhere in the valid I/O range of the IBM , 200 to 3FF hex. It provides information on how to modify the decoding circuitry if you want to decode differently (or want some memory address space). I believe Vector (a big supplier of wire-wrap and similar products) also makes an IBM prototyping board. It's more expensive, though. --- From: simon@E.MS.UKY.EDU ------------------- Jameco Electronics makes several prototype boards for the XT/AT. The XT proto board (Part#PCL750) contains the address decoding and buffering. The AT board (#4617-1) has no extra circuitry. I'm not sure if these boards are for wire-wrap or not, you can call Jameco at 415-592-8121, place orders at 414-592-8097. JDR Microdevices has many wire-wrap proto boards, again the XT version can be ordered with decoding/buffers (JDR-PR2) or without (JDR-PR1). The AT version (JDR-PRAT) has no decoding/buffers. You can call JDR at 800-538-5000. --------------------------------------------------------------------------- James Dugal also mentioned Jameco. Peter Franks suggested checking with Heathkit as well as JDR and California Digital, though he had no specific information.-- - Joe Buck jbuck@epimass.epi.com, or uunet!epimass.epi.com!jbuck, or jbuck%epimass.epi.com@uunet.uu.net for old Arpa sites I am of the opinion that my life belongs to the whole community, and as long as I live it is my privilege to do for it whatever I can. -- G. B. Shaw