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Re: [Discuss-gnuradio] spu fft display
From: |
Eric Blossom |
Subject: |
Re: [Discuss-gnuradio] spu fft display |
Date: |
Thu, 3 Jul 2008 08:19:21 -0700 |
User-agent: |
Mutt/1.5.17 (2007-11-01) |
On Thu, Jul 03, 2008 at 08:23:23AM -0600, Chuck Swiger wrote:
> Here's a hastily put together demo of using gcell.fft_vcc in a usrp/fft
> gui, running at d=64 and fft_size=2048, using 6 spus:
>
> http://www.swigerco.com/spu_fft_2048_d64.jpg
>
> the ppu usage tops at about 90%. You can trade off d=32 for fft_size=1024.
> There is no windowing in gcs_fft_1d_r2.c at the moment.
>
> --Chuck
>
You go Chuck!
FYI, the intention is to "hot plug" the gcell-ized blocks over the top
of the normal blocks when possible at runtime. Thus, eventually you
won't have to make any application mods to take advantage of them.
Eric