On 09/26/2011 05:36 AM, Tom R. wrote:
I’ve never noticed this with my work with the UHD. There are various
commands issued to the USRPs to turn it on and shut it off between bursts.
Maybe there’s something missing in the gr-uhd.
On the other hand, Josh and Nick have been working on using tags with gr-uhd
on the transmit side, which should fix your problem.
Any comments from the UHD folks?
The usrp1 shutdown mechanism in UHD is a little soft (because there is
no inline metadata with the samples). However, if you mark end of burst,
then the transmitter should get disabled.
You can do this w/ tags using this branch:
I would verify that the behavior w/ eob is OK for you on usrp1 by
modifying some uhd (non gnuradio) examples before getting into tags.
And BTW, I didnt know about this patch. The UHD usrp1 images match the
gnuradio ones, so its definitely not in there:
It looks like the patch involves verilog changes. Is this an image that
you can just build and drop in place of the existing one or does it need
host code support? Have you tried it?