Stats

  • Locked Locked
  • Replies 7
  • Subscribers 143
  • Views 3808
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

modify netlist but don't change the schematic in skill function

imagesensor123

 Hi,

   i have a Vpulse source which works like a switch in the output terminal in my design, it  starts with the "0" voltage. In fact, my problem is that, i must get some information like "VoutMaxmum" at the beginning of the simulation, owing to the switch is closed at the beginning so it's impossible to get or retrive the VoutMaxmum . i have thought out a solution with some limitation, i used a parameter "startVoltage" and "endVoltage" to present the Vpulse parameters like" Voltage 0 and Voltage 1" (you can see it in the Vpulse CDF file), and use some function changing the startVoltage value so that we can let the switch keep opened at the beginning. but i think there should be a better way for this, can we do this by modifing the netlist? do you have some good idea?

replacing the Vpulse by Vdc at first-->run-->get VoutMaxmum , by the way, i don't want to change the schematic

Regards,

zfeng

Parents
  • imagesensor123

     Hi,

        yes, you are right! i met a little trouble when i use my way to change the component CDF,  in the schematic composer i can do it correctly, but when i open the ADE, the problem truns up! i can't save the change any more by function schHiCheckAndSave(),

    *WARNING* geGetEditCellView: Invalid graphics editor window.

    *Error* schCheck: argument #1 should be a database object (type template = "d") - nil

    so i think this is the reason why you said i need to edit access to shematic!

    procedure(editVpulse( source new)
    cvid=geGetEditCellView()
    inst=dbFindAnyInstByName(cvid source)
    oldValue=inst->v1
    inst->v1=new

    schHiCheckAndSave() ;; these two lines can work well only when the composer window(or shematic window is the currentWindow)

    hiRedraw()

    )

     i intend to run the procedure totally in background, it's inconvenient if user have to push the "save and check" button in shematic window. how can we use the schHiCheckAndSave() when the shematic window is not the currentWindow?

    thanks,

    my idea:

    i mean that the shematic window is the current design window, and we need simulate it in some condition such as the vpulse v1=3  v2=3 (like a constant vdc) at the beginning but later v1 need to be fixed at v1=0 in the transient paramAnalysis. so for the first step we want to collect some information(VoutMaxmum) in background before the paramAnalysis

    Regards,

    zfeng

Reply
  • imagesensor123

     Hi,

        yes, you are right! i met a little trouble when i use my way to change the component CDF,  in the schematic composer i can do it correctly, but when i open the ADE, the problem truns up! i can't save the change any more by function schHiCheckAndSave(),

    *WARNING* geGetEditCellView: Invalid graphics editor window.

    *Error* schCheck: argument #1 should be a database object (type template = "d") - nil

    so i think this is the reason why you said i need to edit access to shematic!

    procedure(editVpulse( source new)
    cvid=geGetEditCellView()
    inst=dbFindAnyInstByName(cvid source)
    oldValue=inst->v1
    inst->v1=new

    schHiCheckAndSave() ;; these two lines can work well only when the composer window(or shematic window is the currentWindow)

    hiRedraw()

    )

     i intend to run the procedure totally in background, it's inconvenient if user have to push the "save and check" button in shematic window. how can we use the schHiCheckAndSave() when the shematic window is not the currentWindow?

    thanks,

    my idea:

    i mean that the shematic window is the current design window, and we need simulate it in some condition such as the vpulse v1=3  v2=3 (like a constant vdc) at the beginning but later v1 need to be fixed at v1=0 in the transient paramAnalysis. so for the first step we want to collect some information(VoutMaxmum) in background before the paramAnalysis

    Regards,

    zfeng

Children
No Data

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.