I sent a message along these lines to the list about a year ago, but just wanted to give a brief update.
By modifying the FPGA code for the USRP, and writing a nice python-based user interface to write values to the USRP registers, I have managed to put together a nice and user friendly system for using the USRP as a PID (Proportional, Integrator, Derivative) Feedback controller. You can buy or build analog PID controllers, but a digital one has the advantage that it is relatively easy to program in all sorts of smart features that would be hard to implement in analog electronics. I've recently posted the latest incarnation to github, https://github.com/akeshet/USRP-PID-Controller . If anybody has interest in using this, or questions about it, please feel free to contact me. Aviv Keshet _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
