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    Navigation: All forums > Openrisc > Message List > Message Post

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    From: Balint Cristian<cristian.balint@o...>
    Date: Wed Aug 31 09:35:58 CEST 2005
    Subject: [openrisc] ORP_SOC Test bench CLK period
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    ----- Original Message -----
    From: "Kory Schoenfliess" <kmschoen@n...>
    To: "List about OpenRISC project" <openrisc@o...>
    Sent: Wednesday, August 31, 2005 3:05 AM
    Subject: [openrisc] ORP_SOC Test bench CLK period


    > Hello,
    >
    > Is there any way of running the ORP_SOC faster than 25MHz (40 ns clock)?
    > Whenever I change BENCH_CLK_HALFPERIOD to something lower than 20 (hence
    > the 40ns clock), I get unknown values (exceptions) in executed.log and the
    > regression fail. I suppose this has something to do with the SRAM and
    > FLash models and the or1200 running too fast to get the proper inputs.
    > Thanks.

    Yes.

    Spartan 3S1000 at 50Mhz :)
    But its somehow unstable because reach the constrain limit, somewhere at
    40Mhz is safe and stable
    on a 3S1000-4.
    Probaly in Vitex4 is acheiveable more speed.

    >
    > Kory.
    > _______________________________________________
    > http://www.opencores.org/mailman/listinfo/openrisc
    >
    >


    ReferenceAuthor
    [openrisc] ORP_SOC Test bench CLK periodKory Schoenfliess

    Follow upAuthor
    [openrisc] ORP_SOC Test bench CLK periodKory Schoenfliess

     
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