Hello again,
I build a flowgraph in C++ with an RX chain and a TX chain. I'm using a
USRP N210. When I'm in RX, the TX chain is connected to a constant zero
source and feed a null sink and the RX chain is connected to USRP source
and sink. When I'm in TX, it is the opposite.
I have to keep the two chains running at the same time for switching
speed purpose and do not have to stop the flowgraph and restart it. So
for my switching, I just lock the top block and unlock it after.
If I always stay in RX, I have no underrun. Same thing in TX. My problem
is that when I lock and unlock the flowgraph, I get a lot of underruns.
As a test, I remove the TX part of my flowgraph and only keep the RX
part and I try do some lock/unlock sometimes : same problem with underruns.
How to do lock/unlock safely in C++ to avoid underruns ?
Thanks for the help,
Best regards,
Fabien, F4CTZ.
