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A question regarding CCSchangeCells.il ?

IC Layout

 Hai! I found a code which will change cells from one lib/view to another.. in cadence sourcelink ...

I am using cadence IC6X version.. and a IBM(90nm) PDK kit ..

The code is working fine when I tried to convert cells from 'analogLib' to  'gpdk090'..

But when I tried this code in changing cells from 'analogLib' to  'IBM' models it's not happening..

I thought this is because of the following reason.. the IBM PDK kit defines the following params for w(width), l(length), m(multiplier) as

wf(string type),(wff float type), lf(string type), (lfffloat type) and  mpl(int type)...

The params w, l, and m assigned as user defined params after running the code..

I tried to assign the w, l, and m values to the wf, lf and mpl ... the form displaying the values correctly(in schematic).. but when I attempt generate from source it is picking the transistors of default values but the form values remains unchanged.. (in the layout)..

I hope the problem is understandable.... If not I will provide some more information...

Can please some one guide me to achieve this............

Prabhakar. K -- Layout Engineer 

Parents
  • Hi Andrew.

    I continue this post, because it is related. I launched it, but I faced a trouble shoot due to the wrong/annoying behaviour of the DesignKit.

    Indeed, there callbacks launch a popup that block the automatic execusion. Some instances have wrong values. I know, since I want to change from a former techno to a new one. For instance, a capacitance Length=30u; Width=1u. Results in

    Limits Exceeded : Design Rule limite beyond minimum limit 4.0u

    Limits Exceeded: Aspect ratio = 0.13, Parameters outside valid range. Valid aspect ratio is 0.33< w/l< 3.0 Valid area (w*l)<=10,000sq-um

    Anyway, it is not your sript fault. If I selectedone of the 'trouble' capacitance and I launch :

    evalstring(cdfFindParamByName( cdfGetInstCDF(css()) "w")->callback) ;<=> evalstring("cmhv7sfmimWidth()")

    I definitely got the 'nasty' popUp ...

    I can't interactively validate it by skill with some kind of hiDBoxOK(limitsWarningMsg) functions, since CIW  freeze due to the popUp.

    Do you have any idea on how to prevent popup or auto validate them ? I want to get trough it whatever the value of the capacitance will become.

    Thank in advance for any clue.

    PS: I had to click a bazilion time to get trough CCSCdfCallbackEntireLib("MYLIB")..
Reply
  • Hi Andrew.

    I continue this post, because it is related. I launched it, but I faced a trouble shoot due to the wrong/annoying behaviour of the DesignKit.

    Indeed, there callbacks launch a popup that block the automatic execusion. Some instances have wrong values. I know, since I want to change from a former techno to a new one. For instance, a capacitance Length=30u; Width=1u. Results in

    Limits Exceeded : Design Rule limite beyond minimum limit 4.0u

    Limits Exceeded: Aspect ratio = 0.13, Parameters outside valid range. Valid aspect ratio is 0.33< w/l< 3.0 Valid area (w*l)<=10,000sq-um

    Anyway, it is not your sript fault. If I selectedone of the 'trouble' capacitance and I launch :

    evalstring(cdfFindParamByName( cdfGetInstCDF(css()) "w")->callback) ;<=> evalstring("cmhv7sfmimWidth()")

    I definitely got the 'nasty' popUp ...

    I can't interactively validate it by skill with some kind of hiDBoxOK(limitsWarningMsg) functions, since CIW  freeze due to the popUp.

    Do you have any idea on how to prevent popup or auto validate them ? I want to get trough it whatever the value of the capacitance will become.

    Thank in advance for any clue.

    PS: I had to click a bazilion time to get trough CCSCdfCallbackEntireLib("MYLIB")..
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