[Discuss-gnuradio] Disable USRP TX-Chain

[Christian Rohlfing]

I want to switch off the TX-chain because of space-problems with my  
custom USRP-design. I did this by commenting every occurence of TX_*  
in the common_config* file.

Notice: I took the standard-USRP-FPGA-code and deactivated the TX-chain.

After compiling the code with quartus I tested the RBF-file by calling  
benchmark_rx.py (which is located in the gnuradio-examples/python/ 
digital folder) and calling benchmark_tx.py on an other computer with  
the standard-usrp-fpga-code.

But even that simple setup doesn't work, the script is not able to  
synchronize the pakets.

On the other hand: When I'm calling usrp_fft.py with my custom RBF- 
file, the spectrum looks the same as the spectrum with the standard  
RBF-file.