Hey Frank, multi_usrp is exactly what the GNU Radio blocks use under the hood. However, multi_usrp is *not* SWIGged -- which means you can't access multi_usrp from Python. I believe that's what's triggering your error message. get_device() can only be called on your USRP blocks using C++.
Now, if you *were* to use C++, I'd recommend having a look at the 'gpio' example in UHD. It shows how to map ATRs to GPIOs, which sounds like what you're trying to do. I can see how these GPIO functions would be useful in a swigged fashion, though, and maybe even available by command tag. We should get them onto master. M On 01.06.2015 14:23, Falessan wrote: > Hi, > > I would like to command the Front Panel GPIO pins for use as a trigger > signal to another piece of equipment under gnuradio and python (I'm not a > C++ programmer). I've been trying unsuccessfully to use the UHD multi_usrp > "get_gpio_banks" and the "set_gpio_attr" commands to control the I/O pins. I > receive an "Attribute error: 'usrp_sink_sptr' Object has no attribute ". > > My questions are: > 1)Has the UHD multi_source class been incorporated into the GNU Radio API ? > 2) Is it currently possible to interface to the GPIO pins without under > Gnuradio without going the C++ route ? > > Best Regards, > Frank Alessandro _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
