oh! That means 341 ppb frequency error, which *really* shouldn't be
happening.
I'd like to get some statistics of that error, how are you measuring
it?
Best regards,
Marcus
On Wed, 2018-12-05 at 12:55 +0100, Florian Kaltenberger wrote:
> Sorry typo. I did use a frequency of 3.51GHz.
>
> > On
On Wed, Dec 5, 2018 at 4:13 PM Max Thomas via USRP-users <
usrp-users@lists.ettus.com> wrote:
> Hi,
>
> When attempting to stream different waveforms using both channels of the
> replay block simultaneously to two radios on the same USRP (X310) there are
> under-runs. Any ideas why this is
Hi,
When attempting to stream different waveforms using both channels of the
replay block simultaneously to two radios on the same USRP (X310) there are
under-runs. Any ideas why this is happening? The replay block works as
expected when using either channel 0 or channel 1, but fails when
Hi Samuel,
cool! That's really helpful :)
I'm now cross-posting this to discuss-gr, because it's a GNU Radio-land
issue. The maintainers of gr-uhd are active over there, too, so this
seems the smarter place to continue discussion.
so, in medias res:
On Wed, 2018-12-05 at 12:43 +0100, samuel
Sorry typo. I did use a frequency of 3.51GHz.
> On 5 Dec 2018, at 12:54, Marcus Müller wrote:
>
> Hi Florian,
>
> trying to get my head to understand the order of problems here:
> Could you try to use a higher frequency (say, --freq 2e9 instead of
> 3.5e6)?
> I'd thing 3.51 MHz is out of
Hi Florian,
trying to get my head to understand the order of problems here:
Could you try to use a higher frequency (say, --freq 2e9 instead of
3.5e6)?
I'd thing 3.51 MHz is out of range for the N310, anyway?
Best regards,
Marcus
On Wed, 2018-12-05 at 11:49 +0100, Florian Kaltenberger via
Hi Marcus,
Thank you for your answer, I made a simple flowgraph to summarize my problem.
Here is also the backtrace of the segfault:
#0 pmt::eqv_raw (x=x@entry=0x0, y=0x2529300) at
/usr/local/src/gnuradio/gnuradio-runtime/lib/pmt/pmt.cc:1104
#1 0x7f7f159065f6 in pmt::assv_raw (obj=0x0,
No,
With basicRx, allowed subdev are :
- A:AB
- A:BA
- B:AB
- B:BA
This is confirmed by get_rx_subdev_spec() or by usrp->get_usrp_rx_info() (key :
rx_subdev_spec).
It's a bit logic because this daugtherboard do nothing before conversion. SMA
are directly wired to ADC input. After, using UHD, it's
So I can confirm that there is a frequency offset between the two USRP
N310s when using only an octoclock (10MHz + PPS) to synchronize. I have
measured with the tx_waveforms program
./tx_waveforms --args
"addr=192.168.x.2,time_src=external,clock_src=external,master_clock_rate=122.88e6"
Unless you're planning to compile UHD for Android, you should not be
using the compiler that you only installed (hopefully in a $prefix) for
android development.
So, yes, please revert, and make sure you're not accidentally mixing
includes and headers from the standard libraries of GCC 4.8 and
Hi Samuel,
luckily, these days, segfaults are rather rare in stock GNU Radio, and
UHD.
Can you share your exact flowgraph, or a GDB-generated backtrace, with
us?
Best regards,
Marcus
On Wed, 2018-12-05 at 10:31 +0100, samuel verdon via USRP-users wrote:
> Hello,
>
> I’m trying to command my
Hello,
I’m trying to command my usrp B200mini via its command port. I used the
documentation from here:
https://www.gnuradio.org/doc/doxygen/page_uhd.html
here is my command:
pmt::pmt_t command = pmt::make_dict();
command = pmt::dict_add(command, pmt::mp("gain"), pmt::mp(gain));
Hi all,
I'm trying to build batman-adv^[1] for E310 however it required the
kernel sources since it builds /batman-adv.ko/ kernel object. I built
the batctl^[2] and alfred^[3] without problem. I searched on the
internet for kernel sources however couldn't find it. Is there a way to
build
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