Nah, you can just pass in the existing one into your module and grab a reference to the multi_usrp from there.
M On 06/03/2016 12:57 PM, Santos Campos wrote: > Hello again again! > So I'm trying to write an OOT module to control the gpio from GRC. > Would I have to create a usrp device in the module's code if I am using > a usrp source? > My gut says to probably not re-declare it since it's already in use, but > I'm not sure how I could bring it into scope if I don't have to > re-declare it. > I tried poking around for the usrp sink code to see what it did but > couldn't find it. > > On Wed, Jun 1, 2016 at 11:45 AM, Santos Campos <santo...@umich.edu > <mailto:santo...@umich.edu>> wrote: > > Worked like a charm! Thanks for the helpful comments! > Like I said originally, I'm trying to use the gpio to remotely > switch between 2 antennas. > Currently trying to familiarize myself with boost and the uhd api. > Will undoubtedly be back to the listserv with questions on those. > > > On Wed, Jun 1, 2016 at 11:23 AM, Marcus D. Leech <mle...@ripnet.com > <mailto:mle...@ripnet.com>> wrote: > > On 06/01/2016 10:23 AM, Santos Campos wrote: >> Hello again, all! I've finally come back to this after a while. >> I'm trying to get the example code to compile but having some >> trouble. Does anyone have any experience with using the uhd >> gpio api? >> I tried using this to compile: >> >> $ gcc -I/usr/include/boost >> -I/home/santosec/uhd/host/include/uhd gpio.cpp -o gpio >> >> but I got a whole mess of compiler errors. >> >> > And, to follow-up with details: > > http://files.ettus.com/manual/page_build_guide.html > > Also: > > AN-445 and AN-204 from here: > > https://kb.ettus.com/Application_Notes > > >> On Wed, May 4, 2016 at 11:25 AM, Marcus D. Leech >> <mle...@ripnet.com <mailto:mle...@ripnet.com>> wrote: >> >> On 05/04/2016 11:18 AM, Santos Campos wrote: >>> Hello! I am curious if it is possible to use a pin or >>> something on either the B200 or B200 mini to send a >>> control signal. >>> >>> We were hoping to be able to switch between 2 antennas if >>> the board received some signal. It looks like there could >>> be some available pins, but we were unsure if they would >>> be able to fulfill our purpose. If not, any ideas around >>> this issue would be welcome! >>> >>> Any help would be much appreciated! >>> >>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> Discuss-gnuradio@gnu.org <mailto:Discuss-gnuradio@gnu.org> >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> The API for the B2xx GPIO is the same as for X3xx. >> >> There's example code: >> >> .../uhd/examples/gpio.cpp >> >> >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org <mailto: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 > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio