help with monte-carlo, ocean xl script

 hi , i have 2 problems, maybe some can help me:

i try to do monte-carlo simulation while sweeping VDD (global varible in my design) and temperature, but until now i didn't succeed.

1)   i need to do somthing like that:(psodeo code)

for( vdd=0.2 until vdd=0.6){

   for(temperature=0 until temperature=200){

       monte carlo simulation } }

i just need some help with the nesting loop....(I try with SKILL 'while' loop but, every time when i tried to change VDD (global varible) value i got error in my oceanx script.

thanks, 

2) i also need to the result of the monte-carlo simulatio:

all the result that  recieve from the process variation and thier amount ( if i do 100 sampling, i need to write to file all the result and the amount of eac resul)

so, how can i do it?,,,,to get the data from the graph and write it on file???

 thanks,

roni

Roni,

The simplest place to start with this would be to set up a corner in ADE XL with vdd and temperature in the corner. Set the values in the corner to be:

vdd=0.2:step:0.6
temperature=0:step:200

(pick appropriate step values for each).

Enable that corner, and then choose monte carlo as the run mode. This will then run monte carlo for each of the points in the two sweeps (i.e. each subcorner) which are part of that corner. 

You can then dump this as an OCEAN script from ADE XL to see what it looks like.

Regards,

Andrew.

 thanks Andre,

can you also tell me how can i save each iterration result og the monte-carlo to file?

i write expreation to calculate frenquency, and what i need to do is to save all the frenquency value's and the amount of each frenquency value ( like it shown in the histogram graph of monte carlo).

 i try to do it with ocnPrint(), but i didn't succed.

how can i do it?

thanks,

roni

Roni,

You can also get this with the ocnxlOutputSummary() function using the ?detailed t switch (or using the MyOcnxlOutputSummary I just posted, you can output this to a file).

Andrew.