Re: Help.....DSP on ARM9 or ARM7!!!!
- From: "Wilco Dijkstra" <Wilco_dot_Dijkstra@xxxxxxxxxxxx>
- Date: Mon, 30 Jan 2006 22:24:20 GMT
"jagdish.dsp" <jagdish.dsp@xxxxxxxxx> wrote in message
news:uuSdnROkSq5X0UPeRVn-uQ@xxxxxxxxxxxxxxx
> Dear Friends,
>
> In my design I need to develope a DSP algorithm on one DSP processor and
> then to interface same with ARM which is handling all the peripherals.
>
> I am thinking if my DSP algorithm can be implemented on ARM or not...so
> need you help. Right now I am using evaluation board of Texas DSK, so
> taking the input from microphone is given to CODEC(A to D conversion)
> whose sampling freq is 32KHz.
>
> I have to implement 8192 point FFT on real time sound data....
An ARM7 takes 2Mhz to perform a 8192 complex Q15 FFT. ARM9E is twice as
fast.
> And also want to implement Low pass FIR filter on Real time sound data
> before doing FFT. So can this be implemented on ARM 9 platform??????
Your requirements add up to around 10Mhz on an ARM7. Unless power
consumption is key, no need for a DSP.
Wilco
.
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