I’m using a gr.message_source block to send packets to a uhd usrp sink.
My test setup is essentially:
msgq = gr.msg_queue()
msg_src = gr.message_source(1, msgq)
while True:
payload = “something”
msg = gr.message_from_string(payload)
self.msgq.insert_tail(msg)
time.sleep(1)
I was worried about using an infinite loop but it seems to work fine for
tunnel.py
I know the messages are properly removed from the queue and modulated
(as
self.msgq.count() returns 0) but the USRP doesn’t actually transmit them
until I kill the flow graph. How can I ensure the USRP transmits the
data
as it’s removed from the message queue?
Thanks.