Re: [Discuss-gnuradio] Photo of the Beagle Board and USRP

[Brian Padalino]

On Fri, Apr 25, 2008 at 9:32 AM, Jeff Brower <address@hidden> wrote:
>  You are talking about the ARM9 core on the OMAP device, right?  If so then 
> you can
>  run Linux on the ARM core but overall processing capability will be limited 
> compared
>  to a Xeon or Core2-something PC.  Now if you can migrate signal processing 
> tasks to
>  the C55x DSP core on the OMAP, then you're in business.
>
>  For anyone who is wondering, OMAP series devices are widely used in 
> cellphones and
>  other very low power consumption hand-helds -- the chip series is one of 
> TI's major
>  breadwinners.

The OMAP on the beagle board is one of the new OMAP3530 which have a
Cortex-A8 and a TMS320C64x+ DSP core.  Features of the OMAP can be
found here:

    http://focus.ti.com/docs/prod/folders/print/omap3530.html#features

The Cortex-A8 has the NEON SIMD co-processing available to it.
Details can be found here:

    
http://www.us.design-reuse.com/articles/11580/architecture-and-implementation-of-the-arm-cortex-a8-microprocessor.html

Another interesting tidbit is the graphics accelerator (which I
believe is really just another ARM core?) may also be able to offload
some of the processing that may want to be done.

It may not be able to handle 4MHz bandwidth serial-tone equalized
waveforms, but you should be able to take a couple FFTs in real time
which is enough for OFDM.

Brian