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by adgriff2
Thu Apr 02, 2015 6:58 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: SPI driver latency and a possible solution
Replies: 241
Views: 138438

Re: SPI driver latency and a possible solution

I've ready the majority of this thread and understood maybe 75% of it. I need to pull SPI data off an IC at a theoretical minimum of 9446400 bits/s. I assume this would workout to a theoretical minimum SPI speed of ~9.45 MHz. The IC has an SPI ceiling of 20 MHz. I've written a C++ program that attem...
by adgriff2
Thu Nov 06, 2014 2:06 am
Forum: Automation, sensing and robotics
Topic: Panalyzer - a RaspberryPi based Logic Analyzer
Replies: 69
Views: 60572

Re: Panalyzer - a RaspberryPi based Logic Analyzer

Are the included binaries still working? I'm getting many errors: ** (Panalyzer:2632): WARNING **: Error retrieving accessibility bus address: org.freedesktop.DBus.Error.ServiceUnknown: The name org.a11y.Bus was not provided by any .service files (Panalyzer:2632): Gtk-WARNING **: Theme parsing error...
by adgriff2
Wed Jun 05, 2013 1:29 am
Forum: Beginners
Topic: Default User?
Replies: 6
Views: 329694

Default User?

I'm familiarizing myself with the startup process of Raspbian. After a reboot, I normally just SSH in with Putty from a new user I created called 'admin' (same permissions as default 'pi' user). However, I noticed that 'top' shows me that user 'pi' is already running a few processes (LXDE, tightVNC)...

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