Type: Posts; User: Pootle

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  1. Closed: lvcmos33

    The voltage thesholds for LVCMOS25 and LVCMOS33 are different. Possibly signals are failing their setup and hold times? Can you specify a slower clock before you compile?

    Alternatively, are you...
  2. Closed: I'm designing a high-speed mixed signal...

    I'm designing a high-speed mixed signal (100/400MHz) board and am following the advice of the esteemed. Dr. Howard Johnson.

    From his excellent Signal Integrity website:
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