[Discuss-gnuradio] UHD Sink Error

[Nigel Steed (XENINT)]

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