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

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    From: Somphong Sopha<somphong@c...>
    Date: Mon Apr 12 16:46:04 CEST 2004
    Subject: [usb] frequency?
    Top
    Hi,

    To remain on the subject, what frequency should the low speed device run
    at?

    Somphong

    -----Original Message-----
    From: usb-bounces@o... [mailto:usb-bounces@o...] On
    Behalf Of Rudolf Usselmann
    Sent: Sunday, April 11, 2004 11:53 PM
    To: Discussion list about free, open source USB IP core
    Subject: Re: [usb] frequency?

    On Sat, 2004-04-10 at 22:56, M. AbuKhater wrote:
    > hello all,
    >
    > at what frequency should the USB1.1 core be running at? the FPGA
    > synthesizer gave me a maximum of 38MHz is this enough?
    > the Board I am using has a 50 MHz osclillator, Should I replace the
    > ocsillator on the board, (I am using Xilinx Spartan 30Kgates ), I
    > couldnt find a way for frequency division.
    >
    > sincerely
    > Abukhater

    It must be running at 48 MHz.

    rudi
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    ReferenceAuthor
    [usb] frequency?Rudolf Usselmann

     
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