Hi Marcus,
UHD Version
is 3.10.1.1
And target
is X310 with UBX-40 installed.
If I only
use Rx it works fine when changing the sample rate
dynamically in a flowgraph. I probably need to test just
using Tx. Using both Tx and Rx (sink and source) gives the
error.
Note, if I
use the same flowgraph with a USB radio (B205mini) all comms
works fine.
Any help
much appreciated,
Thanks,
NIgel
From: Discuss-gnuradio
[mailto:address@hidden]
On Behalf Of Marcus D. Leech
Sent: Wednesday, March 15, 2017 1:29 PM
To: address@hidden
Subject: Re: [Discuss-gnuradio] UHD Sink Error
On 03/15/2017 05:02 AM, Nigel Steed
(XENINT) wrote:
Hi All,
I have a flowgraph which has both a
uhd_sink and uhd_source. I also have the samp_rate for both
of these linked to a QT Chooser to enable me to select valid
sample rates dynamically at runtime.
If I change the sample rate from 500kHz
to 12.5MHz I can repeatedly generate the following error and
the transmitter stops:
read[thread-per-block[9]:
<block gr uhd usrp sink (8)>]: RuntimeError: On node
0/DmaFIFO_0, input port 0 is already connected.
If I change between sample rates closer
together (12.5MHz and 3.125MHz) this problem does not
appear.
Has anyone else experienced this, and/or
know of a solution ?
Thanks,
Nigel
What version of UHD? What USRP device
type?