Re: [Discuss-gnuradio] B200/mini GPIO

[Santos Campos]

Hi, Martin!

I tried taking a peek at how the usrp sink might handle a preceding usrp source (for inspiration). 

Does it (and the way you described) declare a usrp device and do some kind of shallow copy with the get_device() method?

On Mon, Jun 6, 2016 at 5:54 PM, Martin Braun <address@hidden> wrote:

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 <address@hidden
> <mailto:address@hidden>> 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 <address@hidden
>     <mailto:address@hidden>> 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
>>         <address@hidden <mailto:address@hidden>> 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!
>>>
>>>
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>>             The API for the B2xx GPIO is the same as for X3xx.
>>
>>             There's example code:
>>
>>             .../uhd/examples/gpio.cpp
>>
>>
>>
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>>
>>
>
>
>
>
>
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