Controlling Digital I/O from GRC


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Hi Ben,

this is basically hardware access that can’t be abstracted to a sample
stream, so no, you can’t do it with GRC out of the box.
What you can do is write a C++ class, implementing a message receiver,
communicating with the USRP, and wrap that with a little XML to use it
in GRC.
Being able to do that will require some C++ proficiency, I guess, so
you might want to go through the beginners Tutorial’s on Gnuradio.org
to make sure you’re up to the task.
Using the USRPs will be greatly facilitated when you look at the C++
examples that come with the UHD source code.

Greetings,
Marcus

On 24.04.2014 21:38, Lapointe, Benjamin - 1008 - MITLL wrote:

the digital I/O by using the get_gpio_banks function in multi_usrp,
Any recommendations on where to begin?

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