Hi, I am trying to dynamically reconfigure some parameters of a flow graph. My flow graph is as follows.
File source --> stream to tagged stream --> OFDM transmitter --> usrp sink In the top_block I do the following. tb.stop() tb.wait() <do the reconfiguration> tb.start() I have done parameter reconfiguration earlier(before introducing OFDM TX) and it worked fine. However now when I try to do the reconfiguration I get the following error. FATAL: Missing a required length tag on port 0 at item #160 thread[thread-per-block[2]: <block crc32_bb (16)>]: Missing length tag. FATAL: Missing a required length tag on port 0 at item #160 thread[thread-per-block[18]: <block crc32_bb (27)>]: Missing length tag. SSFATAL: Missing a required length tag on port 0 at item #0 FATAL: Missing a required length tag on port 0 at item #0 thread[thread-per-block[86]: <block ofdm_frame_equalizer_vcvc (62)>]: Missing length tag. thread[thread-per-block[53]: <block ofdm_frame_equalizer_vcvc (93)>]: Missing length tag. LLLLLLLLUU I appreciate if someone could help me to figure out what is causing this issue and how to fix it. Thank you, Damindra -- Damindra Savithri Bandara, Ph.D. in Information Technology (Candidate) George Mason University, Fairfax, Virginia
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