There's no "data rate" on these GPIO pins; you'd have to bitbang them. Interfacing with a digital microphone won't work, as you can't ask their binary states quick enough.
Honest recommendation: Use anything else to connect your microphone to your PC – if you have a microphone for which an audio driver exists, you can directly use it in GNU Radio via the Audio Source. Best regards, Marcus On Fri, 2018-07-06 at 13:35 -0600, Edwin Li wrote: > Dear Mailing List Subscribers, > > There is an aux IO on the USRP X310 motherboard. I want to connect it > with a microphone(Assume it outputs 12-bit digital signal that is > compatible with the IO). I found very little information on how to > use the IO other than the USRP manual( http://files.ettus.com/manual/ > page_gpio_api.html). There are a few people talking about it on the > list but their applications are very different from mine. > > My question is that is it possible to read values from the IO using > GNURadio functions? How does GNURadio know the data rate of the IO? > > Thanks. > > Regards, > Edwin > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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