Hello,
I'm seeing some strange behavior on some new b205 we've received. These
units are Rev Cs so they should have the new caps at the receive switch
in order to remove the transient behavior I had highlighted in a
previous exchange. Two different units exhibit this exact behavior. The
plot below
On 04/24/2018 11:24 PM, Hojoon Yang via USRP-users wrote:
Thank you for reply, Marcus.
I replaced the USRP B200 with internal GPSDO to USRP B210 without
internal GPSDO.
However, I got same result.
when I typed "sudo ./usrp_list_sensors", sometimes Ref: locked,
sometimes Ref: unlocked..
I
Hello,
One of the UHD examples is a good place to start. I generated chirp bursts a
little while back using the tx_bursts example as a starting point. Most of what
you need is already there, its just up to you to calculate the samples needed
to generate the chirp and put them into the tx buffer
Hello,
I am trying to install RFNoC using the getting started tutorial
(https://kb.ettus.com/Getting_Started_with_RFNoC_Development). The first time I
installed everything using pybombs, UHD asked for Vivado 17.4. So I also
installed it but I was still not able to run the basic test contained w
When I executed the sync_to_gps, it always outputs "ref locked".However, if I
executed usrp_list_sensors and test_clock_synch, the reference lock status is
quite unstable.I guess I found the reason why it is unstable.this is because
the "unstable" applications check the "ref_locked" sensors only
Hi,I connected one usrp b210 and one usrp b200 to octoclock for
synchronization.I'm trying to verify that the usrps connected to octoclock is
"really" synchronized.To check it, I did as
follows.usrp->set_time_next_pps(uhd::time_spec_t(0.0));usrp2->set_time_next_pps(uhd::time_spec_t(0.0));boost::
On 04/25/2018 10:53 AM, Hojoon Yang via USRP-users wrote:
Hi,
I connected one usrp b210 and one usrp b200 to octoclock for
synchronization.
I'm trying to verify that the usrps connected to octoclock is "really"
synchronized.
To check it, I did as follows.
usrp->set_time_next_pps(uhd::tim
Hey everybody,
I'm planning on building the CHDR packets myself for some blocks of my own
(or at least proviing my own header when using the AXI Wrapper), and I've
got two simple questions about this:
1. If I specify a CHDR length of , is there a determined timeframe
within which I HAVE to co
The questions were not about time_spec_t and get_real_secs()..I wondered that
"How can I execute the command usrp->get_time_now(); and usrp2->get_time_now();
simultaneously.As I mentioned the previous question, I tried to use
set_command_time(), but it does not work.the code that I tried
is
On 04/25/2018 01:30 PM, Hojoon Yang via USRP-users wrote:
The questions were not about time_spec_t and get_real_secs()..
I wondered that "How can I execute the command usrp->get_time_now();
and usrp2->get_time_now(); simultaneously.
As I mentioned the previous question, I tried to use
set_
On 04/25/2018 01:30 PM, Hojoon Yang via USRP-users wrote:
The questions were not about time_spec_t and get_real_secs()..
I wondered that "How can I execute the command usrp->get_time_now();
and usrp2->get_time_now(); simultaneously.
As I mentioned the previous question, I tried to use
set_
One more comment on the latency issue. I increased the sample rate to 100 Msps
and setup the machine to stay in full-frequency (i.e. no p-states) mode. The
minimum latency I can achieve is now 110 us.
I instrumented rtdsc timer to check the delay between receiving a packet and
sending it out.
Hello,
I did a fresh install of the latest rfnoc-devel (using pybombs prefix init
~/rfnoc -R rfnoc -a rfnoc) and RFNoC blocks do not work (such as FIR and Rx
Radio, possibly related to USRP-users mailer subject: Core dump with
UHD_3.11, X310, and LFTX). So I am trying to checkout and build rfnoc-
Hello!
1) I've looked into the tx_bursts.cpp code and noticed there isn't any
"wave-type " option, means I assume we have to generate our own signal out/in
this code. Does it mean that if I were to generate the chirp, I have to use
part of the code in tx_waveforms.cpp and type in the chir
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