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Hi Steve, Actually, in some sense that's what I meant, but in some sense, not. I didn't mean I have the answer (although indeed, I do have it). I just wanted him/her to try to find it him/herself, given the abundancy of available literature. Girish didn't say what has he/she done so far, or how much is he/she documented in that regard. So, instead of giving a full explanation, which would be worthless if he/she already documented him/herself, I decided to point out to the already existing documentation about the matter. But you are right, maybe my reply was too quick and general that I didn't point out in the right direction. So, I'd suggest you (Girish) to start reading the information existing in the ADSP-218x Hardware Reference Manual, which you can download from: http://tinyurl.com/3uop2. From pages 9-21 to 9-50 you can find a good explanation on how does that work, etc. Moreover, there are a few Engineer-To-Engineer Notes (Application Notes) regarding IDMA and specifically for the 2181 (most of them also apply for the whole 218x family, keeping in mind the "shared" pins in the '84, '85, '86, '97, '88 and '89: There is also an EE Note about that): - AN-415: ADSP-2181 IDMA Interface to Motorola MC68300 Family of Microprocessors - EE-158: ADSP-2181 EZ-Kit Lite IDMA to PC Printer Port Interface - EE-82: Using an ADSP-2181 DSP's IO Space to IDMA Boot Another ADSP-2181 - EE-38: ADSP-2181 IDMA Port - Cycle Steal Timing - EE-11: ADSP-2181 Priority Chain & IDMA Holdoffs These can be downloaded from http://www.analog.com/processors/processors/ADSP/technicalLibrary/, a webpage that I recommend you (and all the ADSPers who work with the 21xx) to bookmark. And a suggestion, please be more specific with your postings. The more specific and clear you are, the better the answers you will get, whatever the newsgroup / mailing list you post to (comp.dsp , , etc...). Regards, JaaC --- Steve Holle <> wrote: > Does this mean you have the answer but you want him > to find it? > > If so, do the right thing and tell him at least > where to look. > > At 11:39 AM 9/13/2004, Jaime Andres Aranguren > Cardona wrote: > >Did you read the Hardware Reference Manual, with > the > >DSPs datasheet at hand? > > > >Regards, > > > >JaaC > > > > > >--- Girish <> wrote: > > > > > Hello all, > > > > > > I want to read a set of 16 bit values from > ADSP-2181 > > > when DSP is running.I know this is possible only > > > with IDMA. > > > > > > Can some one help me in doing the same or can > any > > > one give me some example > > > > > > Bye > > > Girish > > > > > > > > > > > >===== > > > >Jaime Andr Aranguren Cardona > > > > > > > > > >__________________________________________________ > > > > > > > > > >_____________________________________ > >Note: If you do a simple "reply" with your email > client, only the author > >of this message will receive your answer. You need > to do a "reply all" if > >you want your answer to be distributed to the > entire group. > > > >_____________________________________ > >About this discussion group: > > > >To Join: Send an email to > > > > >To Post: Send an email to > > > >To Leave: Send an email to > > > > >Archives: http://groups.yahoo.com/group/adsp > > > >Other Groups: http://www.dsprelated.com/groups.php3 > > > >Yahoo! Groups Links > > > > > > > > > > > > Steve Holle > Link Communications, Inc. > 1035 Cerise Rd. > Billings, MT 59101 > ===== Jaime Andr Aranguren Cardona _______________________________ |