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AMP PetaLinux/FreeRTOS for Vivado 2014.4 !?

Former Member

Dear Everyone,

I'm trying to use Zedboard as AMP system, one core running PetaLinux, and the other core runs FreeRTOS.
I could already design a Petalinux project, build and package it, and boot it from SD card. Now I'm trying to load FreeRTOS on the second core.

I followed UG978, it seems it's out of the date and there is no more need for xsdk to build the package, and these processes are included in the petalinux sdk itself.

The problem is there is almost no document or reference design for Vivado 2014.4 to run this system. Can someone help me with a solution or reference design so I can set it up?

Thx

  • 0

    Hi,

      We are just starting the process of updating all the reference designs to 2014.4.  It will probably be a couple of weeks before you start seeing the new designs appear.

    Ron

  • 0 in reply to Former Member

    Thank you so much for your reply.
    Since we are in a time restriction in the company, do you have any suggestion where I can find information about how I can set up the system I mentioned?
    I read UG978, I generally know what is the idea and what should be done, but I don't know the step by step process.

  • 0

    Hi,

      I checked with Xilinx and unfortunately they have no plans to update UG978 from the most recent document posted.  I believe this is being done in favor of the more recent Open Asymmetric Multi-processing framework (OpenAMP), which was announced in October 2014.  OpenAMP is a more flexible implementation for AMP systems, allowing configuration of different OS systems as master and remote, and not relying on Linux to be the master (although a Linux master is certainly one of the options).  You can download the OpenAMP materials (GPL and BSD licensing applies) from:

    https://github.com/OpenAMP/open-amp

    Having said this, if you wish to pursue the methodology from UG978, you would start by updating the FPGA design to 2014.4 and creating a PetaLinux boot image using the 2014.4 release.  Sounds like you have already done this.  The next step is to integrate the FreeRTOS repositories with the 2014.4 Xilinx SDK, so you can generate a FreeRTOS BSP for the hw design.  You should obtain the latest release available from the www.freertos.org site, but I expect there may be some issues with the integration where you will need to put in some work.  There may already be others who have done this, and if so, please chime in.   Once integrated, you should be able to use the FreeRTOS tasks from UG978 and the new FreeRTOS BSP to create a bootable standalone image of FreeRTOS for your system.  Once you have both the PetaLinux and FreeRTOS images, I think the instructions in UG978 should be sufficient to get your AMP system operational - but as I said, I haven't yet tried to do this with 2014.4, so there may be issues I'm unaware of.

    Let me know what you decide to do, and what issues you run into.  Or if it just works, let me know that too.  :-)

    Ron

  • 0

    I moved back to Vivado V2013.4, and I did the configuration through that version.
    Based on that everything worked fine, and the template RTOS could run besides PetaLinux.
    Thank you for your response!