[Discuss-gnuradio] packet_loopback_hier.grc

[J Nicholas Laneman]

Hi All,

I am tinkering with the “packet” example code, specifically 
packet_loopback_hier.grc from .../share/gnuradio/examples/digital/packet/, on a 
Lenovo laptop running Ubuntu 18.04 LTS and GNU Radio 3.7.13.4 installed via 
PyBOMBS.

Strangely, when I run the flow graph out of the box, I see the following log 
error once in a while:

gr::log :INFO: header_payload_demux0 - Parser returned #f

Also strangely, the flow graph simply stops running after transmitting about 
1200 PDUs.

Note that I have observed these issues on Ubuntu 16.04 LTS installed on the 
laptop as well as a desktop, as well as an iMac running OS X.

Can anyone comment on the level of maturity of these examples and the blocks 
they rely upon?


Regards,
Nick Laneman
University of Notre Dame