Re: [Discuss-gnuradio] User experience with E1x0 boards

[Colby Boyer]

Check top when running a simple data sink or source. If the CPU is
pegged, maybe that is the limiter, if not there is a memory bottle
neck somewhere.

On Tue, May 3, 2011 at 8:25 AM, Alexander Chemeris
<address@hidden> wrote:
> Hi Josh, Philip,
>
> On Sat, Apr 23, 2011 at 17:05, Philip Balister <address@hidden> wrote:
>> On 04/22/2011 07:05 PM, Almohanad Fayez wrote:
>>>
>>> I've always wondered about the design difference between the E100 and the
>>> work you did with Chris Anderson's board ... now I know.  BTW where do you
>>> have your driver code posted for the E100 and any documentation, if it
>>> exists yet :) ? I found slides that you presented on April 13th.
>>
>> Those slides are a recent as it gets. There may be video of that talk in a
>> few months.
>>
>> Driver code is here:
>>
>> https://github.com/balister/linux-omap-philip
>
> We're seeking to get maximum throughput from USRP E100. Our goal is to
> collect some samples to RAM and then process them offline. Right now
> E100 can't achieve even 4MSPS, which is not enough for us. What is
> your feeling what is the limiting element? GPMC should be wide enough
> to transfer much more data and RAM should be fast enough too. Is it
> IRQ, or user-space processing?
>
> We consider replacing Gumstix with a more powerful C6-Integra SoC,
> like TMS320C6A8167. But before we dive into hardware modswe want to
> make it somehow working with what we have already. :)
>
> This is for the open-source WiMAX scanner project:
> http://code.google.com/p/wimax-scanner/
>
> --
> Regards,
> Alexander Chemeris.
>
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