Re: [Discuss-gnuradio] how to trigger dynamic reconfiguration with lock/disconnect

[Marcus D. Leech]

On 06/01/2011 10:10 PM, Yang wrote:
> Oh, my problem is the same with yours: I want to change transmit
> frequency according to the sensing result from rx side. I tried lock()
> and unlock() but cannot work.
>
You know that you can change frequency at any time, right?  You don't
have to lock the flowgraph to do
  so.  It's a simple parameter change, not a flow-graph configuration
change.  Reconfiguration in
  the lock()/unlock() sense involves ripping blocks out of the graph and
installing new ones.

But simple parameter changes for an existing, running, graph don't count
as "reconfiguration".

Also, if I had this problem to cope with, I wouldn't bother with any of
that fancy lock()/reconfigure/unlock()
  stuff.  I'd have my transmit chain, and my receive chain, and some
logic, and I'd simply arrange for my
  transmit chain to transmit nothing while I was in the "explore the
spectrum" phase--either by sending 0s,
  or using a "valve". 


-- 
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org