element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • About Us
  • Community Hub
    Community Hub
    • What's New on element14
    • Feedback and Support
    • Benefits of Membership
    • Personal Blogs
    • Members Area
    • Achievement Levels
  • Learn
    Learn
    • Ask an Expert
    • eBooks
    • element14 presents
    • Learning Center
    • Tech Spotlight
    • STEM Academy
    • Webinars, Training and Events
    • Learning Groups
  • Technologies
    Technologies
    • 3D Printing
    • FPGA
    • Industrial Automation
    • Internet of Things
    • Power & Energy
    • Sensors
    • Technology Groups
  • Challenges & Projects
    Challenges & Projects
    • Design Challenges
    • element14 presents Projects
    • Project14
    • Arduino Projects
    • Raspberry Pi Projects
    • Project Groups
  • Products
    Products
    • Arduino
    • Avnet Boards Community
    • Dev Tools
    • Manufacturers
    • Multicomp Pro
    • Product Groups
    • Raspberry Pi
    • RoadTests & Reviews
  • Store
    Store
    • Visit Your Store
    • Choose another store...
      • Europe
      •  Austria (German)
      •  Belgium (Dutch, French)
      •  Bulgaria (Bulgarian)
      •  Czech Republic (Czech)
      •  Denmark (Danish)
      •  Estonia (Estonian)
      •  Finland (Finnish)
      •  France (French)
      •  Germany (German)
      •  Hungary (Hungarian)
      •  Ireland
      •  Israel
      •  Italy (Italian)
      •  Latvia (Latvian)
      •  
      •  Lithuania (Lithuanian)
      •  Netherlands (Dutch)
      •  Norway (Norwegian)
      •  Poland (Polish)
      •  Portugal (Portuguese)
      •  Romania (Romanian)
      •  Russia (Russian)
      •  Slovakia (Slovak)
      •  Slovenia (Slovenian)
      •  Spain (Spanish)
      •  Sweden (Swedish)
      •  Switzerland(German, French)
      •  Turkey (Turkish)
      •  United Kingdom
      • Asia Pacific
      •  Australia
      •  China
      •  Hong Kong
      •  India
      •  Korea (Korean)
      •  Malaysia
      •  New Zealand
      •  Philippines
      •  Singapore
      •  Taiwan
      •  Thailand (Thai)
      • Americas
      •  Brazil (Portuguese)
      •  Canada
      •  Mexico (Spanish)
      •  United States
      Can't find the country/region you're looking for? Visit our export site or find a local distributor.
  • Translate
  • Profile
  • Settings
Avnet Boards Forums
  • Products
  • Dev Tools
  • Avnet Boards Community
  • Avnet Boards Forums
  • More
  • Cancel
Avnet Boards Forums
Software Application Development Microzed Wilink8 BT on Linux
  • Forum
  • Documents
  • Members
  • Mentions
  • Sub-Groups
  • Tags
  • More
  • Cancel
  • New
Join Avnet Boards Forums to participate - click to join for free!
Actions
  • Share
  • More
  • Cancel
Forum Thread Details
  • State Not Answered
  • Replies 11 replies
  • Subscribers 328 subscribers
  • Views 774 views
  • Users 0 members are here
Related

Microzed Wilink8 BT on Linux

Former Member
Former Member over 10 years ago

We're having a bit of difficulty getting BT up and running even on the I/O carrier card with the Wilink8.

I've been following this guide: http://microzed.org/sites/default/files/documentations/GSG-AES-PMOD-WILINK8-G-v1_6.pdf

And also the reference design here: http://zedboard.org/support/design/6491/66

However, it appears to only be a ramdisk and even when I dig around into the files I can't seem to find much in the way of an example of bringing up BT.

The closest I have is from the pdf guide, Appendex D:
# Enable the Bluetooth radio by setting the BT_EN pin high echo 54 > /sys/class/gpio/export echo out > /sys/class/gpio/gpio54/direction echo 1 > /sys/class/gpio/gpio54/value # Bluetooth modules (drivers) do not require loading, - they are already built into the kernel # activate BlueZ hciattach -t 30 -s 115200 /dev/ttyPS1 texas 3000000 flow hciconfig

When I get to the hciattach step, it gets stuck with an initialization timeout error.

I think I have the device tree setup correctly and the hardware design from the guides and reference designs. If you could send any more information along (a full linux system with a bt script) or put me in touch with someone to help get this working that would be great, or any ideas on what to look out for in terms of potential problems.

I can post any further information if it will be helpful.

Jason

  • Sign in to reply
  • Cancel
Parents
  • peterfenn
    0 peterfenn over 10 years ago

    The Bluetooth-specific issue with this particular build, was determined to be due to a missing (previously applied) kernel patch that was required to fix a hardware flow-control bug in linux-xlnx/drivers/tty/serial/xilinx_uartps.c.

    Though the serial flow control setting had been enabled in the devicetree, this setting was not being used by the driver.

    This has since been fixed and the repository updated

    Do the following steps to rebuild the corrected uImage Linux kernel image file 

    1. Delete your linux-xlnx folder
    2. Re-execute the provided uz_kernel.sh script file to rebuild your Linux kernel from scratch.
    3. Copy the generated uImage file to the SD card BOOT folder

    ie.
    $ cd ~/Documents
    $ rm -Rf linux-xlnx
    $ ./uz_wl8_kernel.sh
    $ cp ~/Documents/linux-xlnx/arch/arm/boot/uImage /media/BOOT

    Regards
    Peter

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
Reply
  • peterfenn
    0 peterfenn over 10 years ago

    The Bluetooth-specific issue with this particular build, was determined to be due to a missing (previously applied) kernel patch that was required to fix a hardware flow-control bug in linux-xlnx/drivers/tty/serial/xilinx_uartps.c.

    Though the serial flow control setting had been enabled in the devicetree, this setting was not being used by the driver.

    This has since been fixed and the repository updated

    Do the following steps to rebuild the corrected uImage Linux kernel image file 

    1. Delete your linux-xlnx folder
    2. Re-execute the provided uz_kernel.sh script file to rebuild your Linux kernel from scratch.
    3. Copy the generated uImage file to the SD card BOOT folder

    ie.
    $ cd ~/Documents
    $ rm -Rf linux-xlnx
    $ ./uz_wl8_kernel.sh
    $ cp ~/Documents/linux-xlnx/arch/arm/boot/uImage /media/BOOT

    Regards
    Peter

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
Children
No Data
element14 Community

element14 is the first online community specifically for engineers. Connect with your peers and get expert answers to your questions.

  • Members
  • Learn
  • Technologies
  • Challenges & Projects
  • Products
  • Store
  • About Us
  • Feedback & Support
  • FAQs
  • Terms of Use
  • Privacy Policy
  • Legal and Copyright Notices
  • Sitemap
  • Cookies

An Avnet Company © 2025 Premier Farnell Limited. All Rights Reserved.

Premier Farnell Ltd, registered in England and Wales (no 00876412), registered office: Farnell House, Forge Lane, Leeds LS12 2NE.

ICP 备案号 10220084.

Follow element14

  • X
  • Facebook
  • linkedin
  • YouTube