Hi Devin,
the padding with zeros unless samples occur within a specific time job
can be done with gr-eventstream [1] [2] , but:
If you're going to use USRP sink anyway, what about using tagged stream
blocks[3]?
You could replace your Pull Source with a Pull Message Source -
PDU to tagged stream-signal processing-USRP Sink (with packet
length tag name set accordingly)
Best regards,
Marcus
[1] https://github.com/osh/gr-eventstream
[2] http://oshearesearch.com/tag/gr-eventstream/
[3] https://gnuradio.org/doc/doxygen/page_tagged_stream_blocks.html
On 25.08.2015 04:00, devin kelly wrote:
I have a flowgraph that I'm trying to develop in simulation first
before deploying to some sort of hardware like a USRP. The flowgraph
begins with a ZMQ Pull Source and then I have all my signal processing
blocks afterwards (eventually there would be a UHD Sink). The ZMQ
block only produces samples when it receives a message so when it
doesn't receive samples the flowgraph doesn't run.
If the work function for any block is only called when there are
samples in the input buffer I don't see how adding any blocks after my
ZMQ Pull Source could help. So that leaves making my own ZMQ Pull
Source that emits zeros when it has no other message. Do I have any
other options? If I add a this feature would be useful to merge back
into GR or is this not really an intended use case for GR?
Thanks,
Devin
___
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
___
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
