Thanks Tom, I will definitely take a look at it and keep you informed. Thanks, John
On Thu, Jan 13, 2011 at 5:12 PM, Tom Rondeau <trondeau1...@gmail.com> wrote: > On Wed, Jan 12, 2011 at 2:43 PM, John Andrews <gnu.f...@gmail.com> wrote: > > Hi, > > Suppose I have two gnuradio blocks called gr_ACQUISITION and gr_TRACKING > > where, gr_TRACKING is dependent upon some result derived from gr_ACQ > block. > > Is it possible to pass certain messages to gr_TRACK in order to change > its > > state while the flowgraph is running? One way to do is to have an output > > line in gr_ACQUISITION that carries this info to the block gr_TRACKING > but > > this doesn't seem like an attractive option to me. > > > > Thanks, > > John. > > We have recently introduced the concept of stream tags into GNU Radio > that might be what you want. They are not currently well-documented, > but you can find some information in my presentations from this years > SDR conference (specifically Tues and Weds): > http://gnuradio.org/redmine/wiki/gnuradio/SDR2010 > > You can also see a simple example in the code source (you'll have to > be on the next branch in git right now): > gnuradio-examples/python/tags > > I will hopefully soon find time to write more examples and document it > better. But hopefully, the examples will be enough to show you how to > add a tag to an output stream from one block and receive it in another > block. > > If you manage to get it working, I'd be very interested to hear about > your experiences. What you are looking to do sounds like it could be a > perfect case study for the use of the tags that others could well > benefit from. > > Tom >
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