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Spreadsheet for DDR3 Fly-by topology

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  • robertferanec
    replied
    We do it. Simple reason is, that Altium keeps changing the algorithm what calculates the total length, spreadsheet is always the same and easy to verify.

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  • Rishat
    replied
    Originally posted by robertferanec View Post
    You can ... or this can be also a way to do it:
    https://youtu.be/jpk-hfsFaqA
    In spite of using xSignals in length matching should I still fill the spreadsheet?

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  • robertferanec
    replied
    You can ... or this can be also a way to do it:
    https://youtu.be/jpk-hfsFaqA

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  • Rishat
    replied
    Hi Robert, thank you very much. So you say I should manually measure every net by the tool "Measure Selected Objects" to fill those cells in the spreadsheet, right? Is there any other way to fill the spreadsheet?

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  • robertferanec
    replied
    We have spreadsheet for OpenRex: https://www.imx6rex.com/open-rex/

    Here it is: OpenRex DDR3 length calculator - spreadsheet.zip

    Hope this helps

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  • Rishat
    started a topic Spreadsheet for DDR3 Fly-by topology

    Spreadsheet for DDR3 Fly-by topology

    Hello,

    Could you please provide a DDR3 spreadsheet for Fly-by topology the same like the T-branch one from Lesson 4 of the Advanced PCB Layout Course?
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