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Starting with skill

Inas

Hello,

Now i have a simply skill code to generate a layout having a transistor, and i entered the parameters in a list.

one of the parameters i want o write is the SDshrink but i can't find out how to use it (write it).

ALso i confusde about the CDF parameter types and values, how can i know what should i write?

Thanks alot

  • Yes, apart from it being dbWriteSkill, not dbWriteSKill, that's correct.
  • i want to create a via from M1 to M2 so i'm using dbCreatViaShapeArrar(CVID "M2" "S" 10 10 5 6 3 4 2 3), i'm just took the example in the manual and try ti imitate it, the CVID has the ID of the via i want to use as its not taken from tsmc, but it gives me error on running,, s0 can you please tell me where is the mistake i'm doing or how can i generate a via.

  • I very much doubt that you want to use dbCreateViaShapeArray. This is a function intended to to be used inside custom vias (or symbolic contacts in CDB days), and is merely going to create a flat array of shapes - typically the "cut" layer in the via.

    You probably want to use dbCreateVia. I think there are lots of posts related to dbCreateVia on these forums.

    Regards,

    Andrew.

  • can anyone tell me or send me a snapshot for the file created by the dbWriteSkill command please?
  • i need to get the coordinates of certain instance in the layout, how can i do that?

  • Unknown said:
    can anyone tell me or send me a snapshot for the file created by the dbWriteSkill command please?

    Why can't you just run it yourself? It's not hard! It seems a bit pointless to have somebody send you the output of the SKILL dumped from their own cellView.

    Unknown said:
    i need to get the coordinates of certain instance in the layout, how can i do that?

    This thread seems to be turning into a random SKILL tutorial - maybe you should read some documentation or attend some training? It doesn't make sense to have to answer a succession of pretty basic questions which a bit of reading and looking at examples (or attending training) would tell you - otherwise we'll end up writing your code for you.

    In this case, something like:

    inst=dbFindAnyInstByName(cvId "I23") ; if I23 is the instance name
    printf("Instance is at %L\n" inst~>xy)

    Regards,

    Andrew.

  • Thanks for your help, i already used the dbWriteSkill command and got a file i was just wanted to know if i'm seeing the right thing or not and i think that there is no problem with that. Also i'm not the only person that just begins to deal with skill and for sure your answers help many persons, also i'm not depending only on this community but i'm searching in different places and asking others. And i think that the benefit from cadence community to support us beside the other resources. Thanks for your understanding

  • It's usually a good idea to write questions with a bit of context so that we can see where you are heading - otherwise it's very hard to know whether I'm actually answering the question you really have, or whether the direction you had was correct. For the dbWriteSkill question, you could have asked that as "here's what I get - is that what you would expect?" (maybe with a picture of what the cellView looked like that you were dumping), rather than asking an extremely open question.

    Sorry to be a bit picky, but vague questions get vague answers - precise questions tend to be more useful for you and for everyone else, and are more efficient for those of us trying to answer them (otherwise we have to guess multiple possibilities as to what you really mean).

    Kind Regards, and good luck with your learning of SKILL!


    Andrew.

  • ok i can get your point i agree with you about the dbWriteSkill, but on other hand sometimes we have general questions that don't depend on the nature of the code so that i'm asking about that. But if i have to write a code for certain purpose for sure i'll sign for that. Thanks to you
  • Understood - but please make sure they are as well-framed as possible. Also, if they are too different from an existing thread, start them in a new thread - it will make it much easier to manage and easier for others to benefit from.

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