Paul, Jerry, Thanks for the suggestion to take a look at DataTranslation!
Looking in the bitsavers folder for DataTranslation, I found a 239 page July 1986 Data Translation manual for the DT3362 series of A/Ds. There are 23 sub-models of that board but the DT3362-16SE/8DI specifications matches the ADV11-D (A1008). The best part is that chapter 8 of this manual has 5 programming examples, two of which use the DMA capability.With a bit of research (and some luck) I think this will give me the info I need. Thanks again, Mark Date: Sat, 17 Oct 2020 02:06:25 -0500 From: Paul Anderson <used...@gmail.com> I think they were made by Data Translation. On Fri, Oct 16, 2020 at 8:00 PM Jerry Weiss via cctech < cct...@classiccmp.org> wrote: > > I just picked a AAV11-D D/A Board for which documentation is also > scarce. The general design may be similar. I should be able to reverse > engineer the analog/digital output section for pin-outs. Lacking > manuals/source code, if someone has an existing driver or software in > binary, I would be willing to disassemble that for its secrets. Perhaps > these boards mimic the methods used by ADAC or Data Translation used for > their Qbus products. Their documentation may also give some insight on > how to setup these CSR's. > > Regards, > Jerry >