| Commit message (Collapse) | Author | Age | Files | Lines |
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* svn diff http://gnuradio.org/svn/branches/developers/matt/new_eth
-r10782:11633
* Patch applied with no conflicts or fuzz.
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This is a custom build for USRP2 FPGA. It allows using a BasicRX or
LFRX board and feed two independent, real signals. In addition, instead
of the CIC/HB decimator, which optimizes frequency response, it uses an
integrate and dump decimator, which optimizes for time-domain impulse
response.
These changes have been made in dsp_core_rx.v:
* A second DDC has been added, sharing a frequency register with
the existing DDC.
* The output of the two DDCs are interleaved as I1 Q1 I2 Q2I ...
into the receive FIFO. This limits the host configured decimation
to 8 intead of 4. Use gr.deinterleave to recover the streams.
* The ADCs are hardcoded:
RX_A ==> DDC #1 I-input
0 ==> DDC #1 Q-input
RX_B ==> DDC #2 I-input
0 ==> DDC #2 Q-input
Thus, the input mux has been disabled.
* The CIC/HB decimator has been replaced by an integrate and dump at
the decimation rate.
* To assist with meeting timing, the external RAM has been disabled.
The basic application is to coherently sample two real IF streams and
downconvert to baseband, while minimizing the impulse response duration
of the resampling filters.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@11519 221aa14e-8319-0410-a670-987f0aec2ac5
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git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10926 221aa14e-8319-0410-a670-987f0aec2ac5
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FPGA build to use integrate-and-dump decimator instead of CIC/HB combination. This provides a much shorter time duration impulse response for the same decimation rate, at the expense of worse stop-band rejection.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10888 221aa14e-8319-0410-a670-987f0aec2ac5
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git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10814 221aa14e-8319-0410-a670-987f0aec2ac5
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git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10813 221aa14e-8319-0410-a670-987f0aec2ac5
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streaming GPIO functions for USRP2.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10766 221aa14e-8319-0410-a670-987f0aec2ac5
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adding these ports actually improves timing. XST strikes again...
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10747 221aa14e-8319-0410-a670-987f0aec2ac5
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noise. only modified dbsrx are supported
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10521 221aa14e-8319-0410-a670-987f0aec2ac5
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git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10497 221aa14e-8319-0410-a670-987f0aec2ac5
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git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10482 221aa14e-8319-0410-a670-987f0aec2ac5
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git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10259 221aa14e-8319-0410-a670-987f0aec2ac5
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git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10120 221aa14e-8319-0410-a670-987f0aec2ac5
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git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10118 221aa14e-8319-0410-a670-987f0aec2ac5
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git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9961 221aa14e-8319-0410-a670-987f0aec2ac5
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git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9831 221aa14e-8319-0410-a670-987f0aec2ac5
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git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9815 221aa14e-8319-0410-a670-987f0aec2ac5
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the ICache.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9779 221aa14e-8319-0410-a670-987f0aec2ac5
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status
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9746 221aa14e-8319-0410-a670-987f0aec2ac5
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git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9636 221aa14e-8319-0410-a670-987f0aec2ac5
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git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9591 221aa14e-8319-0410-a670-987f0aec2ac5
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git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9555 221aa14e-8319-0410-a670-987f0aec2ac5
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gr-usrp2 top-level components. Trunk passes distcheck with mb-gcc installed, but currently not without them. The key issue is that when mb-gcc is not installed, the build system skips over the usrp2/firmware directory, and the firmware include files don't get put into the dist tarball. But we can't do the usual DIST_SUBDIRS method as the firmware is a subpackage.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9528 221aa14e-8319-0410-a670-987f0aec2ac5
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