Ive used XMLRPC for the same thing and you don't have to worry about unpacking integers into floating point etc
-- Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org On Feb 10, 2012, at 10:49 AM, Ed Criscuolo <edward.l.criscu...@nasa.gov> wrote: > On 2/10/12 4:14 AM, Marius Ciepluch wrote: >> >> So if someone knows how I can implement a callback or a polling function >> to make the device tune for real, but as fast as possible, that'd be >> very helpful. >> > > In the past, I've done external tuning via GRC with the following: > > Create a variable block (ie - "frequency"), and put the name in > the frequency parameter of the UHD-sink block. > > Create a subgraph consisting of a UDP source block and a variable > sink block, aimed at the "frequency" variable. > > Use an external program to send a UDP packet to the port number > of the UDP source block. The packet should contain a single > integer representing the frequency. Pay attention to byte-order. > > I've used this setup to apply doppler correction from an external > program when receiving telemetry from a spacecraft. We were only > sending packets about once per second, so I don't know how fast > this setup will go, but it's worth pursuing. > > @(^.^)@ Ed > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
