how to generate spectre netlist for all the schematics in 1 lib ?

Hi Nhumai,

Something like the following (untested) code:

simulator('spectre)
lib=ddGetObj("libName")
foreach(cell lib~>cells
  when(ddGetObj(lib~>name cell~>name "schematic")
    design(lib~>name cell~>name "schematic" "r")
    createNetlist(?display nil)
  )
)

Regards,

Andrew.

Hi Andrew,

I am new to skill script please help to let me know how to use it ? 

thanks 

Nhumai 

Hi Nhumai,

Either take the code above (with the correct library name where it has "libName") and paste it in the Command Interpreter Window (CIW), or probably better to put in a file, save the file, and then in the CIW type:

load("theScript.il")

(where "theScript.il" is whatever you've called the file).

Regards,

Andrew. 

Thanks a lot Andrew it works well :-) . I just ran it 

Hi Andrew,

If I want to create a master schematic which contain all of the cells in 1 lib what can I do ? 

of course I can create it by hand but it will cost a lot of time. I have a lib of couple hundred cells. 

I just realize that it would be better if I can have all the leaf cells netlists in 1 file. 

thanks a lot 

Nhumai 

You'd need to create the schematic using dbOpenCellViewByType, and then open the master for each symbol using dbOpenCellViewByType, create an instance for each with dbCreateInst (probably taking care that they don't overlap) and then (assuming you don't need to wire them up) call schCheck() and dbSave() to make it netlistable.

I'm not going to write the code for you - it's a good exercise for you to learn how to do this (I don't have time anyway - I'm travelling this week and have meetings today).

Andrew.

Hi Andrew,

thanks a lot for your hint. Do you know where I can download the basic tutorial for skill ? 

thanks 

Nhumai 

Hi Andrew,

I searching around the forum and with your suggestion I came up with a code below but it doesn't work 

Can you help to see what is wrong ?

thanks 

Nhumai 

lib=ddGetObj("tps65rf_std_mvt_9t_nl")

foreach(cell lib~>cells

  master_cell= "all_stdcell_mvt_9t"

  cv=dbOpenCellViewByType(lib master_cell "schematic" "schematic" "w")

  when(ddGetObj(lib~>name cell~>name "schematic")

    mstr=dbOpenCellViewByType("tps65rf_std_mvt_9t_nl" cell  "symbol" "schematicSymbol" "r")

    dbCreateInst(geGetEditCellView() mstr "I0" 0:0 "R0" 1)

    schCheck(master_cell)

    dbSave(master_cell)

  )

)

That won't work because:

1. You are reopening the same cell (master_cell) for each cell, in write mode. This means you would overwrite it each time
2. Inside the loop you're creating the instance in the result of geGetEditCellView() - this is the currently open schematic (or layout) view in the environment, not the cv that you'd opened earlier. Probably you didn't mean to use geGetEditCellView() but to use cv instead? If you had though, it would have been lost on each iteration.
3. Had you used cv, all instances would have been given the same name, so the dbCreateInst would have failed for anything other than the first one. If you use "" it will create the instance name automatically.
4. Also, if cv had been used, all the instances would have been on top of each other - 0:0 is the same origin for everything.

Andrew.

I am using a similar code to perform the simulation of all the devices. Currently, the netlist directory is being saved at the default directory <location from where the virtuoso was invoked>/Sim/<cellName>/spectre/schematic/
I want to save this netlist file to some other location. Could you please tell me the skill api which can save the netlist file to another location?