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Using PyCells with Virtuoso 6.1.X

To make PyCells™ work as Pcells with Cadence® Virtuoso® IC6.1.X, please check the following five items:

1. Use the correct 32- or 64-bit version

PyCell Studio™ for Linux is available in both a 32-bit version and a 64-bit version. Download and install the version which matches your version of Virtuoso.

To check whether you are using a 32- or 64-bit version of Virtuoso, look for a line like this in the Virtuoso CIW (Command Interpreter Window):

2. Register the PyCell plug-ins with OpenAccess

3. Include Ciranova shared libraries in your LD_LIBRARY_PATH

4. Include your Python sources in PYTHONPATH

Example: If your Python code is located in

Then use the following command:

Note: This step is not necessary if you are using code-bundled PyCell libraries, an available option with PyCell Studio release 4.2.6 or later.

5. Install Cadence-specific technology file into OpenAccess tech.db

Cadence display packet definitions for layer-purpose pairs are not part of the OpenAccess API definition. You will need to compile the Cadence DFII technology file into the library using Cadence utilities, overwriting the tech.db created by PyCell Studio.

			
    % layout
        CIW > Tools > Technology File Manager...
            Technology File Tool Box > Load...
                Load Technology File >
                     Check   "Select All" box
                     Choose  "Technology Library" choicelist setting
                     Fill in "ASCII Technology File" field
                     Choose  "Replace" box
                     Choose  "OK"
            Technology File Tool Box > Save...
        CIW > File > Exit...