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Today's Topics:
1. Re: rfnoc, using the settings register bus (Jonathon Pendlum)
2. Re: problem with MISO signal receiving (Martin Braun)
3. Re: USRP E310. Update UHD on SD card to latest version
(Paul Harbanau)
4. Re: rfnoc, using the settings register bus (Anselm Karl)
5. Re: E310 jtag and gpio connector (Neel Pandeya)
6. LO offset in the N2X0 (Venkatesh Sandilya)
----------------------------------------------------------------------
Message: 1
Date: Wed, 8 Apr 2015 09:03:40 -0700
From: Jonathon Pendlum <[email protected]>
To: Sylvain Munaut <[email protected]>
Cc: "[email protected]" <[email protected]>, Anselm
Karl <[email protected]>
Subject: Re: [USRP-users] rfnoc, using the settings register bus
Message-ID:
<cagdo0uqdb1uwjn8jb8u-cqgycqnc-n9hpx1scvdd566d_wu...@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8
Anselm,
Building on Sylvain's comment, take a look at
gr-ettus/grc/uhd_rfnoc_schmidlcox.xml in the branch
jarnold/schmidl-cox as an example (eventually this will be merged into
master).
Jonathon
On Wed, Apr 8, 2015 at 5:43 AM, Sylvain Munaut via USRP-users
<[email protected]> wrote:
> Hi,
>
> The standard python block has a set_register(reg_address, reg_value) method.
>
> It might be possible to call it from GRC using the 'function probe'
> block. But when I tested stuff with my block, I just manually edited
> the .py generated by GRC to add a couple of .set_register call ...
> It's lost when I regenerate the .py from GRC but for quick tests, it
> did the trick.
>
> Cheers,
>
> Sylvain
>
> _______________________________________________
> USRP-users mailing list
> [email protected]
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
------------------------------
Message: 2
Date: Wed, 08 Apr 2015 09:40:05 -0700
From: Martin Braun <[email protected]>
To: [email protected]
Subject: Re: [USRP-users] problem with MISO signal receiving
Message-ID: <[email protected]>
Content-Type: text/plain; charset=windows-1252; format=flowed
Maksim,
I still think we're missing some information here. How are you
modulating the signals? How are you testing for orthogonality?
Synchronization is most certainly a key issue here. I also recommend
asking this on the discuss-gnuradio mailing list, as there are certainly
people there who have done this before.
Cheers,
M
On 07.04.2015 13:01, scott tiger via USRP-users wrote:
>
>
> On Sun, Apr 5, 2015 at 7:18 PM, Martin Braun <[email protected]
> <mailto:[email protected]>> wrote:
>
> Maksim,
>
> please re-send that email to the list, I won't be able to respond
> before tomorrow.
>
> M
>
> On 05.04.2015 07:26, scott tiger wrote:
>
> Dear Martin thank you very much for you previous reply.
>
> I am using WBX daughter-boards and transmitting LAS orthogonal codes
> (codes consists of +1, -1, 0) and also I tried to send zadoff
> chu sequence.
> I generated the sequences in matlab then I transmitting them using
> source file in gnu radio and usrp block. I feel that I am loosing
> the orthogonality of these sequences when I receive them.
> Can be unsynchronization between the transmitter with receiver
> cause that?
> Thank you very much for your reply
> Maksim Veronov
>
> On Thu, Apr 2, 2015 at 10:40 PM, Martin Braun via USRP-users
> <[email protected] <mailto:[email protected]>
> <mailto:usrp-users@lists.__ettus.com
> <mailto:[email protected]>>> wrote:
>
> Which daughterboards are you using?
>
> Also, which signals are you transmitting? Is it some kind of
> orthogonal code (zadoff-chu or something like that?). Or
> are you
> relying on some fixed phase relation?
>
> M
>
>
> On 02.04.2015 02:12, scott tiger via USRP-users wrote:
>
> Hello all,
> I am trying to send two orthogonal sequences from different
> antennas and
> receive them in one (2 by 1) . I am using two USRP for
> transmitting
> purpose synchronized using MIMO cable (with two
> antennas) and
> receive
> one signal but when I check it it seems that all the
> orthogonality
> disappears. While when I use SISO transmission I can
> receive a good
> signal. Can you please help me in this problem? Can be
> this problem
> caused because of unsynchronized receiver with the
> transmission
> part ?
>
>
>
>
>
> ___________________________________________________
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> [email protected] <mailto:[email protected]>
> <mailto:USRP-users@lists.__ettus.com
> <mailto:[email protected]>>
>
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>
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>
>
>
>
>
>
> _______________________________________________
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>
------------------------------
Message: 3
Date: Wed, 8 Apr 2015 22:40:36 +0300
From: Paul Harbanau <[email protected]>
To: Philip Balister <[email protected]>
Cc: usrp-users <[email protected]>
Subject: Re: [USRP-users] USRP E310. Update UHD on SD card to latest
version
Message-ID:
<CAF9sTdMk9eaoH_dehF+zd1c=ynlfnq0xwukuwfvo8lw6ffg...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Many thanks!
I used the sdk from the first link. Following wiki page everything works
fine.
Paul
On 7 Apr 2015 20:28, "Philip Balister" <[email protected]> wrote:
> On 04/07/2015 12:23 PM, Moritz Fischer via USRP-users wrote:
> > Hi Paul,
> >
> > please check out our manual [1] for upgrading your sdcard image. It
> > has a section on upgrading the SD card.
>
> It sounded like you may be mixing sdk's from different versions of the
> card. For the card that ships with the unit use the sdk from here:
>
> http://files.ettus.com/e3xx_images/e3xx-release-001/
>
> If you use the test file system from here, use the sdk from this directory:
>
> http://files.ettus.com/e3xx_images/beta/dizzy-test/
>
> This sdk likely will not work against the shipping image.
>
> Also note uhd-3.8.2 has a bug in the fpga image that leads to the LO
> stepping about 100Hz across a small range. Ask engineering for an
> updated fpga image.
>
> Philip
>
>
> >
> > Thanks,
> >
> > Moritz
> >
> > [1] http://files.ettus.com/manual/page_usrp_e3x0.html
> >
> > On Tue, Apr 7, 2015 at 2:17 AM, Paul Harbanau via USRP-users
> > <[email protected]> wrote:
> >> Greetings to all!
> >>
> >> I have a problem with the communicating with E310. I can run a
> preinstalled
> >> to SD card examples. But when I tried to run the examples on my host
> machine
> >> (with --args="addr=..."), I got the error FPGA compatibility.
> >> The problem was solved after running uhd_images_downloader on E310
> device.
> >> But now the version of the library is not compatible with FPGA images.
> So i
> >> need help to update UHD to the latest version (003.008.002).
> >>
> >> I tried to make checkout and cmake (on E310). But it gives an error:
> >>
> >> # cmake -DCMAKE_TOOLCHAIN_FILE = .. / cmake / Toolchains /
> >> arm_cortex_a8_native.cmake -DENABLE_E100 = ON -DENABLE_USRP_E_UTILS =
> TRUE
> >> ../
> >>
> >> ...
> >> The C ++ compiler "/ usr / bin / g ++" is not able to compile a simple
> test
> >> program
> >> ...
> >>
> >> Then I tried to install OpenEmbedded SDK on the host computer and cross
> >> compile for E310. Then copy this UHD build to the SD card.
> >> But the example programs doesn't see libs like boost.
> >>
> >> root @ ettus-e300: /usr/lib/uhd/examples # ldd benchmark_rate
> >> ./benchmark_rate: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.20 'not
> >> found (required by ./benchmark_rate)
> >> ./benchmark_rate: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.20 'not
> >> found (required by /usr/lib/libuhd.so.003)
> >> libuhd.so.003 => /usr/lib/libuhd.so.003 (0xb6a08000)
> >> libboost_program_options.so.1.57.0 => not found
> >> libboost_system.so.1.57.0 => not found
> >> libboost_thread.so.1.57.0 => not found
> >> libpthread.so.0 => /lib/libpthread.so.0 (0xb69e8000)
> >> libstdc ++. so.6 => /usr/lib/libstdc++.so.6 (0xb691c000)
> >> libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb68f7000)
> >> libc.so.6 => /lib/libc.so.6 (0xb67c0000)
> >> libboost_date_time.so.1.57.0 => not found
> >> libboost_filesystem.so.1.57.0 => not found
> >> libboost_regex.so.1.57.0 => not found
> >> libboost_system.so.1.57.0 => not found
> >> libboost_thread.so.1.57.0 => not found
> >> libboost_serialization.so.1.57.0 => not found
> >> librt.so.1 => /lib/librt.so.1 (0xb67b1000)
> >> liborc-0.4.so.0 => /usr/lib/liborc-0.4.so.0 (0xb6741000)
> >> libusb-1.0.so.0 => /lib/libusb-1.0.so.0 (0xb672d000)
> >> libudev.so.0 => /lib/libudev.so.0 (0xb671a000)
> >> libdl.so.2 => /lib/libdl.so.2 (0xb670f000)
> >> libm.so.6 => /lib/libm.so.6 (0xb669e000)
> >> /lib/ld-linux-armhf.so.3 (0xb6f3d000)
> >>
> >> Please help, how can I update UHD on SD card?
> >>
> >>
> >> Best Regards,
> >> Paul
> >>
> >> _______________________________________________
> >> USRP-users mailing list
> >> [email protected]
> >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
> >>
> >
> > _______________________________________________
> > USRP-users mailing list
> > [email protected]
> > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
> >
> >
>
>
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Message: 4
Date: Wed, 8 Apr 2015 22:42:32 +0200
From: Anselm Karl <[email protected]>
To: Jonathon Pendlum <[email protected]>
Cc: [email protected]
Subject: Re: [USRP-users] rfnoc, using the settings register bus
Message-ID:
<CAKcS5R3tL966o=zs0gnz3oxortypjz-iujgyjvl9zaca3m-...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Thank you both,
I think the uhd_rfnoc_schmidlcox.xml puts the function calls for writting
the registers in the python file generated by GRC. (Didn't test it yet.) So
its very similar to sylvains solution. And its quick. Nice.
Anselm
Am 08.04.2015 18:04 schrieb "Jonathon Pendlum" <[email protected]>:
> Anselm,
>
> Building on Sylvain's comment, take a look at
> gr-ettus/grc/uhd_rfnoc_schmidlcox.xml in the branch
> jarnold/schmidl-cox as an example (eventually this will be merged into
> master).
>
>
>
> Jonathon
>
> On Wed, Apr 8, 2015 at 5:43 AM, Sylvain Munaut via USRP-users
> <[email protected]> wrote:
> > Hi,
> >
> > The standard python block has a set_register(reg_address, reg_value)
> method.
> >
> > It might be possible to call it from GRC using the 'function probe'
> > block. But when I tested stuff with my block, I just manually edited
> > the .py generated by GRC to add a couple of .set_register call ...
> > It's lost when I regenerate the .py from GRC but for quick tests, it
> > did the trick.
> >
> > Cheers,
> >
> > Sylvain
> >
> > _______________________________________________
> > USRP-users mailing list
> > [email protected]
> > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>
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Message: 5
Date: Wed, 8 Apr 2015 14:36:30 -0700
From: Neel Pandeya <[email protected]>
To: "Long, Jeffrey P." <[email protected]>
Cc: Ryan Reyes <[email protected]>, "[email protected]"
<[email protected]>
Subject: Re: [USRP-users] E310 jtag and gpio connector
Message-ID:
<CACaXmv8yyBH1nWPbEmafsOUH=CQu_xaUCk0bPN0s-uVJCb=b...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Hello Jeff:
We would suggest this kit for the JTAG breakout:
http://www.digikey.com/product-detail/en/ATJTAGICE3ACCKIT/ATJTAGICE3ACCKIT-ND/3719593
The board shown in Figure 1 would connect directly onto the J13 header, and
the cable shown in Figure 2 would provide the "pigtail" solution. (both
figures are attached to this email)
Regarding GPIO, the mating connector (to J12) is Hirose DF20A-10DS-1C. We
don't have a full cable assembly off-the-shelf, but one would only need the
connector and some 28 or 30 gauge wires.
--Neel
On 7 April 2015 at 07:57, Long, Jeffrey P. via USRP-users <
[email protected]> wrote:
> Does anyone know what plugs I would buy to rig up a jtag and gpio
> connection on the E310? Just want to know what I would search for online or
> if someone can pass on a link that would be great. Could be a pig tail that
> I connect to something else.
>
> Thanks
>
> Jeff Long
>
> _______________________________________________
> USRP-users mailing list
> [email protected]
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>
>
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Message: 6
Date: Thu, 9 Apr 2015 11:34:26 -0400
From: Venkatesh Sandilya <[email protected]>
To: usrp-users <[email protected]>
Subject: [USRP-users] LO offset in the N2X0
Message-ID:
<CAGNcrNLpMWiUvcOO1GKzw3AQ7a6B=qnlf+3+-tpt+twdexb...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Hello
I am using a N210 with DBS-RX2 in receive mode. I have a question. Is there
a certain frequency that the lo defaults to which is proportional to the
centre frequency? If I am setting up the USRP in a flow graph in Gnuradio
companion, is there a way to tune the lo frequency?
Thanks
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