Hi All We are ready to start a new audio design featuring 4 DSPs 21262 from ADI. I was wondering if anyone has experience in multiple dsps architectures, more precisely in inter-communication between the dsps. Our architecture is currently as follow : - 1 dsp to interface inputs / outputs (audio codecs, spdif, usb audio ..) - 3 dsp to generate sounds based on our algorithms. the dsp 1 will be interfaced to codec and "external world" via a TDM interface. Regarding the 3 others DSPs, they need to communicate together, as well as with the dsp 1. Data between the different dsp can be from different types (audio, asynchronous midi, asynchronous parameters). Anyone experienced in choosing the "good" way to exchange data of different types between the DSPs ? We have thinked about a standard dsp interface, with a dedicated simple protocol, but passing asynchronous midi to a synchronous serial interface sounds strange to me. Are there reference designs, block diagrams or schematics available somewhere regarding these multi sharc dsp ? thanks to all
Multi-Sharc architecture
Started by ●December 7, 2004
Reply by ●December 7, 20042004-12-07
Reply by ●December 7, 20042004-12-07
In that order of ideas, why not to use the 21161N? Seems just right for your app, besides includes SDRAM controller, in case that you need external SDRAM for data storage. Regards, -- Jaime Andr�s Aranguren Cardona jaac@nospam.sanjaac.com SanJaaC Electronics Soluciones en DSP www.sanjaac.com (Remove "nospam" from e-mail address) <ytregubov@yahoo.com> escribi� en el mensaje news:1102432968.943299.93460@z14g2000cwz.googlegroups.com...> Why not use SHARCs with built-in link ports ? > > Yuri >
Reply by ●December 7, 20042004-12-07
I'm not the original poster, but the 21262 he is suggesting runs at 200MHz vs. only 100MHz for the 21161N. Given that he is planning on using 4 DSPs, I'm guessing he needs all the processing power he can get. "Jaime Andr�s Aranguren Cardona" <jaac@nospam.sanjaac.com> wrote in message news:1102442993.b44975afea694b3cdfd263a5026c93d4@teranews...> In that order of ideas, why not to use the 21161N? Seems just right for your > app, besides includes SDRAM controller, in case that you need external SDRAM > for data storage. > > Regards, > > -- > Jaime Andr�s Aranguren Cardona > jaac@nospam.sanjaac.com > SanJaaC Electronics > Soluciones en DSP > www.sanjaac.com > > (Remove "nospam" from e-mail address) > > <ytregubov@yahoo.com> escribi� en el mensaje > news:1102432968.943299.93460@z14g2000cwz.googlegroups.com... > > Why not use SHARCs with built-in link ports ? > > > > Yuri
Reply by ●December 8, 20042004-12-08