CASP Tutorial-7 Project

This tutorial demonstrates how to use existing Python code using user custom block.

Pre-Requisites

· Tutorial-2 should be completed.

· Python software has be properly installed on the PC and system environment variables shall be configured to include python paths.

· Set python library path in CASP as mentioned in CASP Documentation -> Python Support section.

Model

· In general user creates a wrapper block with suitable C++ code to interface with Python script.

· For demo purpose ‘Python Demo’ block from /blocks/UserBlocks directory is used. The python code in this demo does basic math operations based on user selection during block parameter configuration.

· A sinusoidal signal generator is used along with an offset signal source. Both signals are added in python code and result is displayed on plotter.

Step 1: Create New Project

· Follow steps mentioned in Tutorial-2.

Step 2: Select Target Hardware

· Follow steps mentioned in Tutorial-2.

Step 3: Creating Model

· Create a model as shown in below figure.

· Configure PyComm Demo block as shown in below figure

· Give names to slider and time plotter blocks.

· Set slider value range from 0 to 2 with step size of 0.1. Set initial condition of slider to 0 as explained in Tutorial-2.

· Configure simulation panel and map slider and plotter blocks to simulation panel sub-windows as explained in Tutorial-2.

Step 4: Setup Simulation Parameters

· Follow steps mentioned in Tutorial-2.

· Enable Python Support under Build tab.

Step 5: Run Simulation

· Press Build/Run button from Home->Simulation menu item. CASP builds and compiles the model and opens separate simulation panel window. In the simulation panel window press ‘Run Simulation’ button to run simulation.

· The output of simulation is shown below.