#bring in blocks from the main gnu radio package from gnuradio import gr #create the top block tb = gr.top_block() #create a signal source src = gr.null_source(1) #1 indicates the data stream size #create a signal sink sink = gr.null_sink(1) #connect the source to the sink tb.connect(src, sink) #run the flow graph tb.run()
This flow graph does nothing. The null source spits out zeros, and the null sink takes
a data stream and does nothing with it.
Also, there is nothing in the flow graph to control the data rate, the
CPU usage should climb to 100%
Source : Josh Knows