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  1. fetcher
    Post

    RJ-45 Recepticle Connection mismatch

    Remember that this RJ-45 component is not just a simple 8-pin connector, but contains internal magnetics (multiple tiny signal transformers needed...
    Post by: fetcher, Jan 22, 2015 in forum: General Discussion
  2. fetcher
    Post

    Atmel<->ARM CPU USB communication under Linux

    If you want the i.MX6 side of that OTG link to operate in USB Host mode (Atmel as USB target/gadget), try the kernel patch & config change I...
    Post by: fetcher, Jan 22, 2015 in forum: General Discussion
  3. fetcher
    Post

    USB 3.0, Is there any way this can be added?

    There's no suitable place to interface an USB 3.0 controller. None of the bus signals exposed on Arduino headers are nearly "fast" enough. The...
    Post by: fetcher, Jan 22, 2015 in forum: General Discussion
  4. fetcher
    Post

    Standalone no screen, no ethernet and don't boot

    One possibility is that a network service is attempting to start before rc.local runs, and hanging due to the lack of Ethernet connectivity. This...
    Post by: fetcher, Jan 18, 2015 in forum: Troubleshooting
  5. fetcher
    Post

    Arduino shield compatibility?

    I think that first photo is actually an Arduino Duemilanove (8-bit AVR based, 5V), which despite the name is much more like an Uno than a Due...
    Post by: fetcher, Jan 18, 2015 in forum: General Discussion
  6. fetcher
    Post

    USB OTG (CN3) as USB HOST in Linux

    I forgot to mention that I also disabled kernel drivers for "USB OTG" and "USB Gadget support" (both under Device Drivers -> USB), in addition to...
    Post by: fetcher, Jan 14, 2015 in forum: Troubleshooting
  7. fetcher
    Post

    PWM on pins, i.MX6, UDOO Quad, UDOObuntu?

    In the attached ZIP is a precompiled binary of the 'devregs' tool (my slightly patched version that avoids the print-all-registers crash-- beware...
    Post by: fetcher, Jan 14, 2015 in forum: General Programming Discussion
  8. fetcher
    Post

    UDOO freeze with GPU tasks and microUSB OTG, not work.

    I posted a small kernel patch in the other forum thread here: http://www.udoo.org/forum/post11518.html#p11518 to force the OTG controller into USB...
    Post by: fetcher, Jan 11, 2015 in forum: General Discussion
  9. fetcher
    Post

    USB OTG (CN3) as USB HOST in Linux

    Here are patches to force the OTG port into Host mode despite its nonfunctional/unconnected ID pin. I'm using the daisy-chain mux at IOMUXC_GPR1...
    Post by: fetcher, Jan 11, 2015 in forum: Troubleshooting
  10. fetcher
    Post

    GPIO speed from i.MX6

    For fastest performance, you may want to consider bypassing Linux' /dev/gpio driver and "poking" the i.MX6 CPU's memory-mapped GPIO registers...
    Post by: fetcher, Dec 14, 2014 in forum: UDOO 101
  11. fetcher
    Post

    What does the modified bossac for Arduino IDE do?

    A standalone Arduino Due uses an ATmega 16U2 supervisor CPU both for USB-serial conversion of the programming port, and also to trigger a reset...
    Post by: fetcher, Dec 14, 2014 in forum: Application & Utilities
  12. fetcher
    Post

    RAM on the UDOO Quad board

    I did the piggybacked-memory thing too back in DIP-chip days. Fun times. This unfortunately won't work on a Udoo, because the DRAM ICs are...
    Post by: fetcher, Dec 14, 2014 in forum: General Discussion
  13. fetcher
    Post

    Serial port CN6 not working as expected

    If you check board schematics, the /dev/ttymxc3 RS-232 transmit signal (coming from the i.MX6 pin labeled "KEY_COL0", transmitting toward SAM3X...
    Post by: fetcher, Oct 7, 2014 in forum: Troubleshooting
  14. fetcher
    Post

    Reading serial from Ubuntu

    Linux serial devices may need to be initialized by appropriate ioctl()'s before you can talk to them with simple tools like 'cat' or 'screen'....
    Post by: fetcher, Oct 7, 2014 in forum: Troubleshooting
  15. fetcher
    Post

    /dev/ttymxc0 /dev/ttymxc1

    Only two of the five I.MX6 UARTs are really open and usable for general purpose I/O. /dev/ttymxc0 (UART1) is, for all practical purposes...
    Post by: fetcher, Oct 7, 2014 in forum: Troubleshooting
  16. fetcher
    Post

    ShellShock Bash Fix?

    Debian too. It's unfortunate that all the UDOO distributions seem to be poorly maintained for security updates. Several weeks after this...
    Post by: fetcher, Oct 5, 2014 in forum: Linux Ubuntu
  17. fetcher
    Post

    PWM on pins, i.MX6, UDOO Quad, UDOObuntu?

    The i.MX6 PWM controller has a small sample buffer for varying its period / duty-cycle automatically, and can signal an interrupt when it's nearly...
    Post by: fetcher, Sep 6, 2014 in forum: General Programming Discussion
  18. fetcher
    Post

    do you need the Atmel?

    As far as I can tell, the only thing that absolutely *requires* using the SAM3X is analog I/O (the twelve ADC and tow DAC pins, A0-A11 + DAC0/DAC,...
    Post by: fetcher, Sep 6, 2014 in forum: General Discussion
  19. fetcher
    Post

    Programming Arduino without Arduino IDE

    I uploaded a script here which you might find useful: http://www.udoo.org/forum/here-script-compile-upload-arduino-sketches-via-cli-t1822.html...
    Post by: fetcher, Sep 6, 2014 in forum: Arduino IDE
  20. fetcher
    Thread

    here's a script to compile & upload Arduino sketches via CLI

    This script will build a .bin image from Arduino sketch files (.ino), and optionally flash it to the SAM3X chip (use -f switch, or set FLASH=true...
    Thread by: fetcher, Sep 6, 2014, 16 replies, in forum: Arduino IDE
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