usim_trim to change block parameter multiplicity (m)

usim_trim can only be used with a small set of parameters, as documented.

You could just use an alter instead:

trim1 alter dev=m1 param=m value=4

(the first word is a unique name to distinguish it from any other alter statements).

Regards,

Andrew.

Thanks Andrew,

it is still not clear for me what is the dev=m1

let's say my instance in netlist is :

XSEG\<7\>  (sl\<0\>  bl\<0\> 0 vdd)  SEG_RC1X 

I want to add a multiplicity parameter of m=4 without touching the netlist. can I use the alter option directly OR the instance in netlist must already have a parameter m:

(XSEG\<7\> (sl\<0\>  bl\<0\> 0 vdd) SEG_RC1X  m=m1) ?

trim1 alter param=m1 value=4

Thanks,

Regards,

Kotb

Yes, this still works. You do need to put:

trim1 alter dev=XSEG\<7\> param=m value=4

The dev is the instance name. You can change the m-factor on a hierarchical instance, and will then apply m to everything within it (multiplying any existing m-factors on those lower level blocks by the m-factor on the instance).

You can add:

outPar info what=output where=file

into the netlist, and then you can see the m-factor on each of the lower level effective parameters (it will write a file called netlistSuffix.info.output into the working dir with the information for the output parameters of each device).

Andrew.

Sorry, forgot to say that this can be done even if the instance does not already have m on it.

Andrew.

Thanks Andrew, 

I used this command line  :trim1 alter dev=X8SEG\<0\>.XSEG\<7\> param=m value=4

and I have this ERROR:

`trim1': Sweeping the parameters of a subcircuit instance (`XSEG<7>') is currently not supported by `dev' parameter. Please use `sub' parameter instead.

So, I replaced 'dev' by 'sub', as said in the ERROR and now it works with no problem.

Thanks again, I am really grateful for your continuous support and smart solutions.

Regards,

kotb

Thanks Andrew, 

I used this command line  :trim1 alter dev=X8SEG\<0\>.XSEG\<7\> param=m value=4

and I have this ERROR:

`trim1': Sweeping the parameters of a subcircuit instance (`XSEG<7>') is currently not supported by `dev' parameter. Please use `sub' parameter instead.

So, I replaced 'dev' by 'sub', as said in the ERROR and now it works with no problem.

Thanks again, I am really grateful for your continuous support and smart solutions.

Regards,

kotb