I have looked at the python examples tagging where a trigger signal is used to insert "burst" tags at various stream sample locations. However, what I would like to do is add a tag at the first sample of a packet. The tag will be called "send_at_time" and will have a value of time at which to send. Following questions arise (I am assuming the use of send_pkt() used in examples in digital):
1. Is it possible to tag the first bit? For e.g. can I modify "message_from_string" called in pkt.py (if I can find the source for it)
msg = gr.message_from_string(pkt,time_to_send)