My two cents: Only useful reference: https://files.ettus.com/manual/page_gpio_api.html UHD example: https://github.com/EttusResearch/uhd/blob/master/host/examples/gpio.cpp
In E310 you have to select the correct GPIO bank, that being *INT0 *(took me a while to figure it out). You can start your project just by checking GPIOs are working by using UHD example (loop mode) and configure them all as inputs: $ ./gpio --bank INT0 --repeat --bitbang Then if you shortcircuit, for example, Pin 1: +3.3V with Pin 3: Data[5], you could see Pin 3 changing its logic value from 0 to 1 in the console output. Hope this helps, Brais. 2017-07-11 17:56 GMT+02:00 Will Thompson via USRP-users < [email protected]>: > Hi all. > > So I’m thinking of starting a project with the E310 that requires high > accuracy control of a switch. > > > > Basically I need to receive a single RF sample (@1MHz) (1us), then send a > signal via the GPIO on a second sample (2us), and then receive a signal > again on the third sample (3us) and alternate between these functions for a > period of time. > > > > I was wondering if anyone has experience with controlling the GPIOs on the > E310, and knows how accurate you can synchronise the signal outputs with RF > received samples? i.e. Can I synchronise the GPIO signalling and the > received RF sampling down to micro seconds? > > > > Also, if anyone has any good resource links for the E310 and GPIO could > you pass them on please? > > > > > > Kind regards > > Will > > > > > > -- > > William Thompson Ph.D. > > Senior Research Engineer > > Toshiba Research Europe Limited > > 32 Queen Square, Bristol, BS1 4ND, UK > > Tel: +44 (0) 117 906 0734 <+44%20117%20906%200734> > > > > ------------------------------ > > NOTE: The information in this email and any attachments may be > confidential and/or legally privileged. This message may be read, copied > and used only by the intended recipient. If you are not the intended > recipient, please destroy this message, delete any copies held on your > system and notify the sender immediately. > > Toshiba Research Europe Limited, registered in England and Wales > (2519556). Registered Office 208 Cambridge Science Park, Milton Road, > Cambridge CB4 0GZ, England. Web: www.toshiba.eu/research/trl > > > > ------------------------------ > This email has been scanned for email related threats and delivered safely > by Mimecast. > For more information please visit http://www.mimecast.com > ------------------------------ > > _______________________________________________ > USRP-users mailing list > [email protected] > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > > -- [image: logo_170x100px.png] <http://www.gradiant.org/> Brais Ares Fernández Investigador - Desarrollador | Área de Comunicaciones Avanzadas Researcher - Developer | Advanced Communications Department Ph. (+34) 986 120 430 Ext. 3019 [email protected] | www.gradiant.org [image: Iconos Redes Sociales GRD Firma email-01] <https://www.facebook.com/GradiantNews/> [image: Iconos Redes Sociales GRD Firma email-02] <https://twitter.com/Gradiant> [image: Iconos Redes Sociales GRD Firma email-03] <https://www.linkedin.com/company-beta/769728> [image: Iconos Redes Sociales GRD Firma email-04] <https://www.youtube.com/user/ComunicacionGRD> Take care of the environment. Try not to print this email. The information contained in this email message may be confidential information, and may also be the subject of legal professional privilege. If you are not the intended recipient, any use, interference with, disclosure or copying of this material is unauthorized and prohibited. Please inform us immediately and destroy the email. Thank you for your cooperation.
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