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  1. #1
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    Set timing delay in lattice diamond for MACHXO2

    Hi,
    I would like to know how to set delay in lattice diamond for internal pins as well as for I/O?

    I put this inside .sdc file but it is not recognized what other tool like vivado recognize?

    set_max_delay -from [get_pins {I_module_a/txdata_reg[8]}] -to [get_pins {I_module_b/ODDRXE_msb}] 2.49

    Regards

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  2. #2
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    barry's Avatar
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    Re: Set timing delay in lattice diamond for MACHXO2

    What do you mean “internal pins”? Do you mean module ports? Why do you even need to do that? If you have a clock constraint the tool should take care of meeting timing. Do you maybe need a MULTICYCLE constraint? Also, maybe the signal you’re trying to constrain is getting optimized away.



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  3. #3
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    Re: Set timing delay in lattice diamond for MACHXO2

    Hi,

    How long do you whish the delay to be?

    Klaus
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