Hello all, I'm experiencing some odd behavior with the Header Payload Demux (HPD) block. I'm using a Tx/Rx loopback simulation with full synchronization and channel model in the loop. The simulation begins with all channel model parameters turned off. For the sake of this discussion, the channel will always be in the off state.
When I start the simulation, it will sometimes run for over a minute before I see the HPD output freeze and sometimes only for a second or two. The freeze always starts at the HPD block, and then as buffers fill, all the preceding blocks become frozen (frozen in the sense that all outputs stop changing as seen on Qt GUIs). GNU Radio itself does not freeze. I have placed a message debug block to display the Packet Header Parser messages and I always see that this stops updating first. The messages will be in a good state, identifying packet number and payload length and then suddenly just stop. No more messages at all. I'm not sure what's causing this behavior. Does anyone have an idea? I'm happy to provide more information. v/r, Rich
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