Hello! First, I'll start off with letting you know that I'm very new to GNURadio and USRPs so please bear with me :) Also, I wanted to preface this with my setup: I'm using a B210 board with GNURadio 3.8 on a Macbook Air running macOS Catalina.
So, I'm trying to send a message to my USRP, have the USRP receive the message, then have the USRP transmit the message back out. I'm basing my flowgraph off of a packet_loopback_hier.grc example that I found in the GNURadio examples directory under examples/digital/packet. Based off of this message thread <https://lists.gnu.org/archive/html/discuss-gnuradio/2018-06/msg00254.html>, it says I can replace the Channel Model block with a USRP Source and Sink block. I did that, but found that the Packet RX block is having a hard time decoding the packet and printing the contents to the terminal. I believe that my USRP Source and Sink blocks are receiving the packet just fine. I wrote the input of the USRP source and the output of the USRP sink to a File Sink, and verified that there are bursts of digital data being captured using Inspectrum. Because of this, I believe the problem may be with how Packet RX is decoding the packet. Because I don't have much experience, I was wondering if someone could help me figure out how to get the Packet RX to decode the packet properly and print the output to the terminal using the Message Debug block. Also, I've been discussing this problem on the GNURadio mailing list, and was hoping maybe someone here could continue helping me with the problem! Here's my GNURadio mailing list message thread <https://lists.gnu.org/archive/html/discuss-gnuradio/2021-01/msg00212.html> for past information of what I've done. Thanks in advance!
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