Hi Marcus,
Thanks for the link.
1.In the link they are mentioning to issue time command when aligning phase of
multiple devices but is that required for a single device of say 2955 R which
has four receivers?
2.Further do all four receivers share a same master oscillator in 2955R?
3.If I w
Hi Luz,
You can call the api calls just as you would in C++ from the usrp object.
For example:
usrp = uhd.usrp.MultiUSRP(args.args)
usrp.set_clock_source("external")
usrp.set_time_source("external")
Regards,
Nate Temple
On Wed, Jan 16, 2019 at 2:51 PM Florez Manduca, Luz E CIV USARMY (USA
Does anyone have any sample python uhd API code to select the clock source
(internal, external, GPSDO)? The UHD manual has no documentation on the python
uhd APIs (only the C++ ones and I am quite lost there). Any suggestion would be
greatly appreciated.
Thank you very much.
Sincerely.
Luz El
Correction, v3.13.1.0-rc1 or later.
On 1/16/19 08:44, Ron Economos via USRP-users wrote:
Setting the frame size (send_frame_size=x) with UHD v3.13.1.0 or later
seems broken. I haven't tested receive, but transmit fails with any
value over 8192.
Many:
[ERROR] [B200] Got a ctrl packet with unk
Setting the frame size (send_frame_size=x) with UHD v3.13.1.0 or later
seems broken. I haven't tested receive, but transmit fails with any
value over 8192.
Many:
[ERROR] [B200] Got a ctrl packet with unknown SID XXX
And copious
Works fine with v3.13.0.3-rc1 and previous rele
Try deleting setting the frame sizes (send_frame_size=15360 and
recv_frame_size=15360).
I've just uncovered this regression myself.
Ron
On 1/16/19 08:27, Cedric Roux via USRP-users wrote:
Hi,
attached is a program that does:
open_b210()
while (1) {
t=rx(1ms of data)
tx(1ms of data at
Hi,
attached is a program that does:
open_b210()
while (1) {
t=rx(1ms of data)
tx(1ms of data at time t+4ms)
}
The program does more or less what openairinterface does.
Used to work properly, does not with 3.13.1.0
(version shipped in ubuntu 18.04).
We get lots of:
[...]
[ERROR] [B200] Go
On 01/16/2019 05:39 AM, Koyel Das (Vehere) via USRP-users wrote:
Hi,
Is the phase difference between two receiving channels in USRP 2954 R
or between any two channels of USRP 2955R stable? That is can I
measure the phase difference using a power splitter and equal length
cables and say that
Hi,
Is the phase difference between two receiving channels in USRP 2954 R or
between any two channels of USRP 2955R stable? That is can I measure the phase
difference using a power splitter and equal length cables and say that it will
remain the same always or will it vary?
Regards,
Koyel
_
