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Re: [Discuss-gnuradio] USRP packet parsing


From: Eric Blossom
Subject: Re: [Discuss-gnuradio] USRP packet parsing
Date: Fri, 23 Mar 2007 05:39:39 -0700
User-agent: Mutt/1.5.9i

On Thu, Mar 22, 2007 at 04:34:49PM -0400, Thibaud Hottelier wrote:
> Brian Padalino wrote:
> >
> >Did you ever compile the design with Quartus II to get a report of how
> >many resources we can use for these FIFOs?  It might be a good idea to
> >see how much space we have in block RAM to distribute and use between
> >all the channels (just for an estimated target).
> 
> Yes, currently 39 out of 52 M4K blocks are used. A fifo of 8192 bytes 
> takes up 16 M4K whereas a fifo of 32 bytes takes up 2 M4K.
> 
> Then the two unknown are how many channels there are and how much data 
> to we want to be able to burst.

First pass (current USRP), assume 2 channels, one for control, one for
data.  Design and test it such that we can trivially add additional data
channels.

Eric




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