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xilinx vivado and zynq

Discussion in 'Electronic Design' started by Jon Kirwan, Feb 7, 2013.

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  1. Jon Kirwan

    Jon Kirwan Guest

  2. summary-cd148dbc1dc84db0b03345f14fef5956.aspx

    I put one of those into a design for a client towards the end of last
    year. Nice part for certain applications, but make sure you read the
    long errata list very carefully - many of the features on the SoC don't
    work, and have a status of "no plan to fix."

    To be fair, most ARM SoCs from any manufacturer have nasty bugs that are
    never fixed.


  3. Jon Kirwan

    Jon Kirwan Guest

    Thanks, Allan. Interesting. Would you mind saying what caused
    you to choose that part? What excluded other options and made
    this one in some fashion 'optimal?'

    (I'm going to learn about vivado more than about the Zynq,
    this time around. But I'm curious about the choice you made
    and what led up to it and would gladly read anything you
    choose to write about that.)


  4. The basic architecture for this client's application is similar to that
    of a router: there is some sort of microprocessor running an operating
    system and "control plane" (low bandwidth but nasty protocol data) and an
    FPGA for the "data plane" (high bandwidth data with low latency).

    Obvious choices were a Spartan 6 FPGA coupled with one of the many ARM
    SoCs (from e.g. TI, Marvell, etc.).
    All of these were cheaper than the Zynq.

    The thing that swung us to using Zynq was the fact that the major device
    on the board came from a single manufacturer, and that manufactuer has a
    reputation for the longevity of supply of parts.

    ARM SoCs are usually pretty bad choices if you want to make a product for
    more than a couple of years.
    Once that smartphone is replaced by a newer model, the SoC manufacturer
    will soon stop making the device.

  5. josephkk

    josephkk Guest

    That is what they are advertising it as. Given the typical reported
    quality of Xilinx tools i won't hold my breath.

  6. Guest

    Hey, thanks for pointing this out. I just acquired a Zedboard
    a while ago to experiment with, but wasn't aware of the Vivado.
    The webpack version covering the ZYNQ seems to be due soon.

  7. Jon Kirwan

    Jon Kirwan Guest

    Yes, I think that's why they sent me notices and offered the
    class here, locally. The webpack version is limited, but
    free. But I think they've done some reasonably aggressive
    pricing structure for the real deal, too. I saw figures in
    the $2000 range, which is almost getting livable for a dba
    like me.

    I have an old set of Xilinx tools that they put out just
    BEFORE they did their very first webpack, years ago. It ran
    solo (no net connection) and was also free. But with the
    webpack, they immediately stopped giving that thing away and
    it became instant unobtainium. (so far as I remember.)

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