element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • 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 & Tria Boards Community
    • Dev Tools
    • Manufacturers
    • Multicomp Pro
    • Product Groups
    • Raspberry Pi
    • RoadTests & Reviews
  • About Us
  • 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 & Tria Boards Community
  • Avnet Boards Forums
  • More
  • Cancel
Avnet Boards Forums
PicoZed Hardware Design Bug with example bitstream and board for Picozed Embedded Vision kit
  • 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 2 replies
  • Subscribers 338 subscribers
  • Views 332 views
  • Users 0 members are here
Related

Bug with example bitstream and board for Picozed Embedded Vision kit

Former Member
Former Member over 8 years ago

Hi,

I ordered this kit a couple of weeks ago. Since it came, I couldn't make it work with any of the example bitstreams or projects, even after trying to re-synthesize everything myself. In the bare-metal application from the website, after following the guide to the letter, everything froze at the first printout : "initializing HDMI-FMC-CAM application".  With the Petalinux example project there were two or three error messages about failing to start the xylon-drm driver and failing to get a pixel clock.

I found a workaround that got the camera working, but it is not exactly practical or safe, though it is repeatable. I thought it may help highlight the source of my problems so here goes:

I noticed that if I unplug the camera board (the one with the ADV7511 and 7611 chips) then the 7030 alone would complete the boot process successfully for the bare metal application. I tried hot-plugging the camera board with the zynq powered up, and trying to get an image from the camera. That failed, but after soft-resetting the board, everything started working.

If I power down for more than a second or so, I run to the same problem, but the process is repeatable. If I leave the board powered-up and remove the sd card I can even load the linux-OS examples, and suddenly the xylon driver works fine as well.

Interestingly, if I plug the camera and daughter board to a ZC706, I can run the bare metal application fine with no hackery, it just works right out of the box, so the board doesn't seem damaged. It seems like there must be some problem with the initialization phase of the python camera daugher board.

 

Any help or ideas appreciated. I can't keep doing this or keep the FPGA on 24/7. This is a brand new board, it is unacceptable that the provided bistreams would fail like this.

Let me know if I can provide more information to help.

  • Sign in to reply
  • Cancel
  • albertabeef
    0 albertabeef over 8 years ago

    The first thing to check is the carrier board's VADJ setting.

    Can you confirm that the carrier board's JP5 is set to 1-2 (VADJ=1.8V) ?

    Regards,

    Mario.

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
  • Former Member
    0 Former Member over 8 years ago in reply to albertabeef

    Yes.

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
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