How to pass desVar using include file in ocean runs

Hi Prasad,

When you say "both didn't work", what exactly didn't work? What was the error? Just trying to understand what you'd tried and what didn't work. 

The path() function specifies a list of directories to search in, and the definitionFile is the name of an actual file to include; relative paths are found using the directories specified in path().

Regards,

Andrew.

Hi Andrew,

Thank you for your response.

Correcting the paths I used!

1. path( "<absolute_path_to_directory_containing_variables_file>" )
2. definitionFile( "<absolute_path_to_file_containing_variables>")

Examples of entries in design_variables.scs file are below.

simulator lang=spectre

desVar(   "vdd"  1.2)

desVar(   "vddio" 1.8)

desVar(   "vVDD"  "vdd")

In the first case, ocean gives out these errors..

ERROR (SFE-1997): "input.scs" 5531: I78: parameter `Von': Cannot run the simulation because an unknown parameter `vVDD' has been specified in expression `vVDD'. Correct the expression and rerun the simulation.

etc..

In the second case, ocean run gives out these errors..

ERROR (SFE-709): "absolute_path_to_file_containing_variables" 6: No master specified for instance `desVar'.

ERROR (SFE-874): "absolute_path_to_file_containing_variables" 6: 10: Unexpected quoted string ""vdd". Expected end of file or end of line. Cannot run the simulation because of syntax error. Correct the error and rerun the simulation.

etc...

Please let me know if you need any other information.

Thank you,

Prasad

Hi Andrew,

Thank you for your response.

Correcting the paths I used!

1. path( "<absolute_path_to_directory_containing_variables_file>" )
2. definitionFile( "<absolute_path_to_file_containing_variables>")

Examples of entries in design_variables.scs file are below.

simulator lang=spectre

desVar(   "vdd"  1.2)

desVar(   "vddio" 1.8)

desVar(   "vVDD"  "vdd")

In the first case, ocean gives out these errors..

ERROR (SFE-1997): "input.scs" 5531: I78: parameter `Von': Cannot run the simulation because an unknown parameter `vVDD' has been specified in expression `vVDD'. Correct the expression and rerun the simulation.

etc..

In the second case, ocean run gives out these errors..

ERROR (SFE-709): "absolute_path_to_file_containing_variables" 6: No master specified for instance `desVar'.

ERROR (SFE-874): "absolute_path_to_file_containing_variables" 6: 10: Unexpected quoted string ""vdd". Expected end of file or end of line. Cannot run the simulation because of syntax error. Correct the error and rerun the simulation.

etc...

Please let me know if you need any other information.

Thank you,

Prasad

Hi Prasad,

OK, in that case it's hardly surprising it doesn't work. You've put desVar function calls (which are OCEAN/SKILL functions) into a spectre syntax file. You either need to use the approach you've used and put instead:

simulator lang=spectre
parameters vdd=1.2 vddio=1.8 vVDD=vdd

or simpler still, I'd create a file, commonVars.ocn which contains:

desVar( "vdd" 1.2)
desVar( "vddio" 1.8)
desVar( "vVDD" "vdd")

and then rather than using path/definitionFile, simply in your OCEAN script use:

load("/path/to/commonVars.ocn")

at the appropriate point in your OCEAN script (i.e. after the design() and before the run() somewhere).

If you prefer the syntax, you can use:

include("/path/to/commonVars.ocn")

Regards,

Andrew.