Hello:
I have a USRP2 + WBX running with GNU Radio 3.3.0 on openSUSE 11.2.
In my flowgraph, I am trying to create a timer that will call a function
periodically, say every 200ms. This function would dynamically change
some parameters of my flowgraph, such as the frequency or amplitude of a
Signal Source.
I setup a timer using signals (SIGALRM) in my flowgraph, and the code
runs, but my signal handler never seems to be called, and my tone’s
frequency and amplitude never change. Can you use signals inside a
flowgraph? Should I not be using signals to do this? Should I use a
separate thread instead?
Thanks for your help.
Steve McMahon