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Re: [Discuss-gnuradio] USRP2 Simultaneous Tx and Rx Transmit Errors

From: Kyle Pearson
Subject: Re: [Discuss-gnuradio] USRP2 Simultaneous Tx and Rx Transmit Errors
Date: Tue, 7 Apr 2009 16:06:21 -0400

> Matt made some changes in the USRP2 FPGA and firmware code in
> changeset 10762 that we believe fixes this problem.
> Can you please download and try the lastest FPGA image and firmware
> from http://gnuradio.org/releases/usrp2-bin/trunk and let us know if
> this fixes it for you.
> FYI, at high data rates, full-duplex, the firmware becomes a
> bottleneck and will limit the maximum reliable throughput
> achievable.  Fixing that will most like require moving at least some
> of the state machine that's currently implemented by firmware into the
> FPGA fabric.
> Eric

I tested the new FPGA and firmware changes and everything seems to
work well down to a decimation and interpolation of 28.

Thanks for the fix!

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