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  1. #1
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    Warnings in nano route in innovus

    Hello All,
    I get this warnings while Nano Route. Due to these warnings, routing is not happening. Any idea how they can be resolved?

    #WARNING (NRDB-2040) Rule LEF_DEFAULT doesn't specify any vias that satisfy all of the area rules for layer M2 M3
    #WARNING (NRDB-776) No default up VIA for LAYER M1 in RULE LEF_DEFAULT.
    #WARNING (NRDB-776) No default up VIA for LAYER M2 in RULE LEF_DEFAULT.
    #WARNING (NRDB-777) No default down VIA for LAYER M2 in RULE LEF_DEFAULT.
    #WARNING (NRDB-776) No default up VIA for LAYER M3 in RULE LEF_DEFAULT.
    #WARNING (NRDB-777) No default down VIA for LAYER M3 in RULE LEF_DEFAULT.
    #WARNING (NRDB-777) No default down VIA for LAYER TOP_M in RULE LEF_DEFAULT.
    #WARNING (NRDB-776) No default up VIA for LAYER M1 in RULE virtuosoDefaultSetup.
    #WARNING (NRDB-776) No default up VIA for LAYER M2 in RULE virtuosoDefaultSetup.
    #WARNING (NRDB-777) No default down VIA for LAYER M2 in RULE virtuosoDefaultSetup.
    #WARNING (NRDB-776) No default up VIA for LAYER M3 in RULE virtuosoDefaultSetup.
    #WARNING (NRDB-777) No default down VIA for LAYER M3 in RULE virtuosoDefaultSetup.
    #WARNING (NRDB-777) No default down VIA for LAYER TOP_M in RULE virtuosoDefaultSetup.

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  2. #2
    Advanced Member level 5
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    Re: Warnings in nano route in innovus

    Quote Originally Posted by Chinmaye View Post
    Hello All,
    I get this warnings while Nano Route. Due to these warnings, routing is not happening. Any idea how they can be resolved?

    #WARNING (NRDB-2040) Rule LEF_DEFAULT doesn't specify any vias that satisfy all of the area rules for layer M2 M3
    #WARNING (NRDB-776) No default up VIA for LAYER M1 in RULE LEF_DEFAULT.
    #WARNING (NRDB-776) No default up VIA for LAYER M2 in RULE LEF_DEFAULT.
    #WARNING (NRDB-777) No default down VIA for LAYER M2 in RULE LEF_DEFAULT.
    #WARNING (NRDB-776) No default up VIA for LAYER M3 in RULE LEF_DEFAULT.
    #WARNING (NRDB-777) No default down VIA for LAYER M3 in RULE LEF_DEFAULT.
    #WARNING (NRDB-777) No default down VIA for LAYER TOP_M in RULE LEF_DEFAULT.
    #WARNING (NRDB-776) No default up VIA for LAYER M1 in RULE virtuosoDefaultSetup.
    #WARNING (NRDB-776) No default up VIA for LAYER M2 in RULE virtuosoDefaultSetup.
    #WARNING (NRDB-777) No default down VIA for LAYER M2 in RULE virtuosoDefaultSetup.
    #WARNING (NRDB-776) No default up VIA for LAYER M3 in RULE virtuosoDefaultSetup.
    #WARNING (NRDB-777) No default down VIA for LAYER M3 in RULE virtuosoDefaultSetup.
    #WARNING (NRDB-777) No default down VIA for LAYER TOP_M in RULE virtuosoDefaultSetup.
    1 - make sure you are using a real tech lef, not some academic hacky solution.
    2 - make sure the innovus version is recommended/certified for the PDK you are using.
    Really, I am not Sam.



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