Hi all,
I am reading a 16 bit data from a async memory using
EMIF. I need to perform FFT and further procesing
based on this. Do i need to ALIGN my data. What should
i Write in place of 'constant'? in
#pragma DATA_ALIGN(symbol, constant)
please reply soon,
Pramod Mishra
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DATA_ALIGN
Started by ●August 6, 2007
Reply by ●August 7, 20072007-08-07
--- In c..., pramod mishra wrote:
>
> Hi all,
> I am reading a 16 bit data from a async memory using
> EMIF. I need to perform FFT and further procesing
> based on this. Do i need to ALIGN my data. What should
> i Write in place of 'constant'? in
> #pragma DATA_ALIGN(symbol, constant)
>
> please reply soon,
> Pramod Mishra
>
How will you be performing the FFT? If you're using the dsplib FFT
functions then read the documentation to see what data alignment is
required. It's normally 8. The length of the data will also need to be
a power of 2. What DSP are you using (c64x, c67x)?
Pete
>
> Hi all,
> I am reading a 16 bit data from a async memory using
> EMIF. I need to perform FFT and further procesing
> based on this. Do i need to ALIGN my data. What should
> i Write in place of 'constant'? in
> #pragma DATA_ALIGN(symbol, constant)
>
> please reply soon,
> Pramod Mishra
>
How will you be performing the FFT? If you're using the dsplib FFT
functions then read the documentation to see what data alignment is
required. It's normally 8. The length of the data will also need to be
a power of 2. What DSP are you using (c64x, c67x)?
Pete
