Typhoon HIL Software Manual
- Introduction
  Overview of the categories covered in the Typhoon HIL Software Manual
- System Requirements
  Guidelines for the hardware and/or software environment necessary to run Typhoon HIL Control Center, for both PC and Test Server/Virtual Machine-based setups.
- Typhoon HIL Quick Start Guide
- Typhoon HIL Toolboxes
  List of the Toolbox Packages available in the Typhoon HIL software suite
- Connecting to your HIL device
  Guidelines on how to connect to a HIL device using either USB or Ethernet ports.
- Device Manager
  Device Manager is used to create, manipulate, and activate HIL device setups.
- Typhoon HIL Control Center
  This section provides a general description of Typhoon HIL Control Center and lists the main software components accessible from it, as well as additional software tools which can be invoked from its interface.
- Example Explorer
  General Description of the Typhoon HIL Control Center Example Explorer.
- Signal Access Management
  This feature allows you to change the visibility of signals in Schematic Editor and HIL SCADA
- Schematic Editor
  Introduction to the Schematic Editor tool in Typhoon HIL Control Center
- Schematic Editor Component Libraries
  Detailed functionality and use of the pre-built Component Libraries in Schematic Editor
  - Modeling principles
    This section describes modeling principles used in Typhoon HIL's software.
    - System architecture basics
      This section explains the basic elements of the system and their functions: Typhoon HIL FPGA Solver, System CPU and User CPU.
    - Electrical domain modeling principles and constraints
      This section describes electrical domain modeling principles and constraints.
    - Signal processing modeling principles
      This section describes signal processing modeling principles.
      - System Architecture
        This section describes system architecture
      - Execution rates
        Overview of how execution rates are handled within Typhoon HIL Control Center software
      - Signal types
        This section describes signal types
      - Component Sorting
        Description of how component order is sorted during the compilation step
      - Algebraic loops
        Overview of algebraic loops and their affect on THCC simulation.
  - Model partitioning
    This section describes the general motivation and gives some practical guidelines for model partitioning.
  - Component library
    This section describes the general properties of the component library in Schematic Editor, and provides a list of main types of components available in it.
  - References
    This section describes references
- Third-party integrations
  This section provides an overview of the key third party integrations within Typhoon HIL's toolchain.
- HIL SCADA
  Description of the HIL SCADA tool in Typhoon HIL Control Center
- Waveform Generator
  This section describes the waveform generator tool in Typhoon HIL Control Center.
- Test and Calibration Tool
  Description of the Test and Calibration tool in Typhoon HIL Control Center
- TyphoonTest IDE
  This section describes TyphoonTest IDE
- Signal Analyzer
  This section describes the Signal Analyzer tool.
- Lookup table extraction tool
  Description of the Typhoon HIL Control Center tool for extracting characteristics (lookup tables) from datasheet graphs and charts into a format that can be imported by non-linear models.
- Package Manager
  Description of the Typhoon HIL Control Center tool for creating and managing Typhoon packages that contain Schematic examples, Schematic and widget libraries, documentation etc.
- Usage Logging
  This section briefly describes Typhoon HIL software logging feature.
- Python Interpreters
  Overview of how you can use Typhoon HIL Python Interpreters to further customize your test files.

Execution rates

Overview of how execution rates are handled within Typhoon HIL Control Center software

Signal Processing components currently support only discrete time execution rates.

The execution rate is defined on a per-component basis. A component with an inherited execution rate will be assigned a sample time based on the sample times of the components it is connected to. Execution rate inheritance is done in two steps:

Forward propagation: sample time is inherited from the components connected to the input terminals. Always performed first.
Backward propagation: sample time is inherited from the components connected to the output terminals. Performed in cases when the execution rate could not be resolved using the forward propagation method.

Models can contain components with different execution rates. The fastest component execution rate has to be an integer multiple of the base simulation step (step of the FPGA solver). All other execution rates have to be integer multiples of the fastest execution rate.

The maximum number of execution rates is limited and depends on the HIL platform as defined in Table 1.

Table 1. Maximum number of execution rates
User CPU	Max execution rates
ARM Cortex A53	2
ARM Cortex A9	4

Note: System CPU models run at two discrete execution rates and their default values are 100 µs and 50 ms. Those values can be modified from the Schematic Editor -> Schematic Settings panel.

When the model is executed in real time it is required that all execution-rate-related computations are completed within the defined simulation step. In case that the model takes longer to compute, an overrun condition will occur resulting in inaccurate simulation results.

To detect such a situation, the workload on every execution rate is monitored by dedicated hardware logic. Time-slot-utilization information is visualized in the HIL SCADA application. Computing interval overrun conditions are explicitly signaled using the dedicated CIO flag. For more information, please refer to the HIL SCADA Status Bar documentation.