Hi all, I'm strugling making the right choice for our new board. I Need something like 2 GFLOPS in order to process audio. Audio is sampled with 44Ks/s externally and internally at 10xFS. I have been aiming at the ADSP-21161 or ADSP-21261 as a target. I know there are 2 ways of processing; Parallel and serial. I have no clue how to create a parallel system ( bus arbiter, software ). Does VDSP divides the code over the DSP's or do you have to program the parallel processes manually? I do know how to create a serial system, but it's not that flexible. Anyhow the board is less complex with a serial processing architecture. This limits my choices. Are there any examples of multiDSP boards around? Regards & thanks in advance, Evert Verduin ( gtekprog )
Board architecture choice? parallel or serial processing?
Started by ●April 6, 2006
Reply by ●April 6, 20062006-04-06
gtekprog wrote:> Hi all, > > I'm strugling making the right choice for our new board. > I Need something like 2 GFLOPS in order to process audio. > Audio is sampled with 44Ks/s externally and internally at 10xFS. > I have been aiming at the ADSP-21161 or ADSP-21261 as a target.You can use one single processor if you only need 2 GLOPS - for example a 500 MHz TS-201 does 1 GMACS which translates into 2 GFLOPS. This would save you _lots_ of time (hardware and software design). Or just use one of the modern workstation CPUs. Best: use the new Cell BE (just in case you need 20Fs or 30Fs internally).
Reply by ●April 6, 20062006-04-06
>gtekprog wrote: >> Hi all, >> >> I'm strugling making the right choice for our new board. >> I Need something like 2 GFLOPS in order to process audio. >> Audio is sampled with 44Ks/s externally and internally at 10xFS. >> I have been aiming at the ADSP-21161 or ADSP-21261 as a target. > >You can use one single processor if you only need 2 GLOPS - for example >a 500 MHz TS-201 does 1 GMACS which translates into 2 GFLOPS. This >would save you _lots_ of time (hardware and software design). Or just >use one of the modern workstation CPUs. Best: use the new Cell BE (just >in case you need 20Fs or 30Fs internally). > >Hi Andor, thanks for the reply. I looked at these dsp's, but the issue with these TS chips is the BGA package.. I have to make the prototype of my board in my home lab. FPGA chips are not a problem, but BGA's are a big hassle ( read impossible to solder ) :-( Any ideas? Evert