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saving designs in virtual memory to disk

harishgurram

hi,

I am opening a cell view with dbOpenCellViewByType() command in read mode, and copying this view to some other view with the dbCopyCellView(...x...) command. 

 Now I am opening the copied view in append mode and making some edits on this layout view, and saving the same with dbSave(), and closing the view with dbClose() command. and also closing the view that is opened in read mode.

Now I am facing two problems,

The opened views are still existing in the virtual memory, they are not saving into the disk. how to write it into disk, and free virtual memory.

And I am getting a warning *Attempt to save read only design*...  (why this warning, i am not saving the read mode opened design.)

Is There  any commands to save the design in virtual memory to disk...Please help me

Thanks

Harish 

Parents

  • Here's a transcript showing what I just tried (in IC616), which shows everything working fine. Which just shows the importance of what Lawrence mentioned - seeing your code. It may be you've made a mistake in the code which we might be able to spot if we can see it.

    cv=dbOpenCellViewByType("opamp090" "adc_sample_hold" "layoutTry")
    db:0x1ac01192
    cv~>mode
    "r"
    new=dbCopyCellView(cv "opamp090" "adc_sample_hold" "layoutTryCopy")
    db:0x1ac00492
    new~>mode
    "a"
    cv~>mode
    "r"
    new~>someNewProp="hello"
    "hello"
    dbSave(new)
    t
    dbClose(new)
    t
    dbClose(cv)
    t
    dbGetOpenCellViews()
    (db:0x1dd0f512 db:0x1dd0e892 db:0x1dd0e392 db:0x1dd0df12)
    dbGetOpenCellViews()~>cellName
    ("inv_2x_hv" "nmos2v" "pmos2v" "pmoscap2v")

    So as you can see, the original and copy are no longer in memory. It definitely saved it too:

    tryCopy=dbOpenCellViewByType("opamp090" "adc_sample_hold" "layoutTryCopy")
    db:0x1ac01192
    tryCopy~>someNewProp
    "hello"

    Regards,

    Andrew.

Reply

  • Here's a transcript showing what I just tried (in IC616), which shows everything working fine. Which just shows the importance of what Lawrence mentioned - seeing your code. It may be you've made a mistake in the code which we might be able to spot if we can see it.

    cv=dbOpenCellViewByType("opamp090" "adc_sample_hold" "layoutTry")
    db:0x1ac01192
    cv~>mode
    "r"
    new=dbCopyCellView(cv "opamp090" "adc_sample_hold" "layoutTryCopy")
    db:0x1ac00492
    new~>mode
    "a"
    cv~>mode
    "r"
    new~>someNewProp="hello"
    "hello"
    dbSave(new)
    t
    dbClose(new)
    t
    dbClose(cv)
    t
    dbGetOpenCellViews()
    (db:0x1dd0f512 db:0x1dd0e892 db:0x1dd0e392 db:0x1dd0df12)
    dbGetOpenCellViews()~>cellName
    ("inv_2x_hv" "nmos2v" "pmos2v" "pmoscap2v")

    So as you can see, the original and copy are no longer in memory. It definitely saved it too:

    tryCopy=dbOpenCellViewByType("opamp090" "adc_sample_hold" "layoutTryCopy")
    db:0x1ac01192
    tryCopy~>someNewProp
    "hello"

    Regards,

    Andrew.

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