On 12/12/2023 07:59, drtay...@manx.net wrote:
Hi everyone.
I am trying to run a python script that has been generated for
convenience using the non-GUI GRC option. (3.9.5.0) (Python 3.10.12)
The script sends a short (~300 ms) finite sequence of samples as
ranging code to a satellite and records the return to a file after the
round-trip interval (~262 ms). This sequence of events is achieved
using the head block as a method of accurately counting samples, which
will be important in the file content analysis. The flowgraph cycle is
complete in less than 1 second, with the data file appended each run.
I am looking for a quick and hopefully elegant way of synchronising
the start of above flowgraph to the 1 pps input, but on a repetitive
basis, say every 10 seconds. The published notes on 1pps USRP
synchronisation are very instructive, however applying the necessary
scheduler control means to the python _main_ is causing the difficulty
here.
Many thanks and compliments of the season.
David Taylor GD4FMB
You'll probably want to share this with the discuss-gnuradio mailing
list as well -- since this is a Gnu Radio script, and you're
basically asking about Gnu Radio behavior...
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