Glad you found it! I just realized that in copying the custom list from my main Udoo, I double-pasted part of it - apologies if that confused...
Just as a demonstration of how the stray gpio's have no effect on alternate pin functions... if they were still connected in parallel, this would...
First, beyond the clutter factor, it doesn't hurt to have those extraneous GPIOs present, since with I2C enabled they're disconnected from the...
For SPI on the Arduino side (SAM3X CPU) you'll need to run a 4-pin cable to that small male 4x1 header sandwiched between the Udoo's rear USB...
Do you have a spare SATA cable on hand to try? I remember wasting a lot of time some years back trying to find why a rackmount server wasn't...
I'd be interested to hear your experiences with Asterisk 11, though - upgrading all or some of my Asterisk sites (currently still on 1.8.xx) to...
Conference bridges no longer require DAHDI in newer Asterisk releases -- the old "MeetMe" application did, but that's been deprecated for a while,...
Your power hookups look OK. It's not clear from your first post whether or not you can hear the HD spinning up, though - does it make a normal...
I've had an Udoo Quad in this role for over three years now, acting as a small NFS + DLNA file server as well as the household router, firewall...
[continued from above] Now comes perhaps the trickiest part, which is defining the correct IOMUXC register settings to map pins removed from GPIO...
Udoobuntu's 'dtweb' graphical utility is handy for editing the device-tree and changing pin-mux modes, but in some cases it's necessary to edit...
As far as I can tell booting from USB flash is not possible. U-Boot appears to lack drivers for the i.MX6 USB host (and OTG) controllers, and...
This is probably too late to help the OP, but in case others are wondering ... the only UART with both RTS and CTS mux-candidate pins routed to a...
If you use the newer 3.14.56 kernel, the USB drivers have been updated to allow host-mode to work by default on the OTG port, without having to...
I know this is an old thread, but for anyone else encountering this problem, which appears to still afflict current Udoo 3.14.56 kernels, the...
If you want to read your 1-wire sensors from the Linux i.MX6 side rather than from the Arduino SAM3x, there is a nice package called 'owfs-fuse'...
I forgot to mention that in the 'dd' memory-bandwidth test above, of course /rw is mounted as a ramdisk (tmpfs).
The newer 3.14.56 kernel, at least, appears to watch the HDMI hot-plug sensing pin, and automatically disables HDMI output when no monitor is...
As one more Linux i2c C-language example that involves reading a sensor rather than controlling something, here's a short utility I wrote for...
Here's an example of how to control an i2c device on the Linux side from the C language, either plain C or C++. This is a little command-line...
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