Interpreters

Interpreter is the general term for any program or code invoked from within GME that interacts with an OpenMETA project and produces a desired effect. Interpreters are primarily used to perform modifications to OpenMETA projects or to consume and transform OpenMETA projects in order to generate executable analyses.

Utility Interpreters

Utility Interpreters are those interpreters that are generally intended to be used in the context of Components, Component Assemblies, or Design Containers. For example, the AddConnector Interpreter assists a user in creating connectors around the bare pins in an electronics component model.

The Component Authoring Tool Interpreter Dialog

The Component Authoring Tool (CAT) above is another great example: this utility makes it simple to generate a component model by providing a wizard for generating OpenMETA model objects based on existing domain-specific resources.

Test Bench Interpreters

Test Bench Interpreters are those interpreters that are designed to consume the OpenMETA project and generate artifacts or executable analyses. Test Bench Interpreters are intended to be invoked in the context of Test Benches.

For example, the CyPhy2Schematic Interpreter when invoked from the context of a Test Bench, is capable of generating a SPICE circuit file from a composed system of electronics components referenced as the TopLevelSystemUnderTest.

SPICE Analysis Generated by CyPhy2Schematic Interpreter

Test Bench Interpreters are usually targeted at a single domain in the model, but they can target multiple domains, e.g. generating a co-simulation analysis.

Custom Interpreters

In addition to the interpreters that come with OpenMETA, you can create custom interpreters to satisfy a specific need you may encounter.

Most of the interpreters shipped with OpenMETA are written in C++ or C#, but since building custom interpreters in these languages is currently unsupported, the process for invoking a CyPhyPython Interpreter is described below. Both Utility and Test Bench Interpreters can be created and invoked with CyPhyPython Interpreter.

Invoking an Interpreter

Interpreters can be invoked as utilities as follows:

1. Navigate to the desired context, e.g. a Component, Design Container, etc.
2. Click the CyPhyPython Interpreter Button, , located in the toolbar.
3. Locate the script and click Open.

To invoke an CyPhyPython Interpreter as a Test Bench Interpreter, you will need to add a CyPhyPython Interpreter Task to the workflow. An example of this can be found in the Analyzing Our Company section of the Hello World tutorial.

Note

If you don’t see the CyPhyPython Button, , on the toolbar, follow the instructions below to add it:

1. Open the Components manager from the menu bar, Tools ‣ Register Components….

   

2. Select CyPhyPython.

3. Click Enable.

Building an Interpreter

There is currently no documentation on writing CyPhyPython Interpreters. If you are attempting to do so, a good example to imitate would be the Value Aggregator that is used in the Analyzing Our Company section of the Hello World tutorial. With OpenMETA installed, you can copy the interpreter script directly and make changes as you see fit: C:\Program Files (x86)\META\bin\ValueAggregator.py.