Model Design and Compatibility Guidelines

Best practices for creating HDL-compatible Simulink model, clock bundle generation, and native floating-point

The HDL modeling guidelines are a set of recommended guidelines for creating Simulink^® models, MATLAB Function blocks, and Stateflow^® charts for code generation with HDL Coder™. The model design and compatibility guidelines consist of guidelines for basic block usage, clock and reset signals, buses and vectors, and subsystem and hierarchical designing.

Topics

List of Guidelines and Severity Levels

Model Design and Compatibility Guidelines - By Numbered List
List of supported blocks and data type guidelines in ascending order of Guideline ID.
HDL Modeling Guidelines Severity Levels
Various severity levels associated with the HDL modeling guidelines and their description.

Basic Model Design and Compatibility Guidelines (Guideline ID 1.1)

Basic Guidelines for Modeling HDL Algorithm in Simulink
High-level guidelines to create your HDL algorithm in Simulink model.
Guidelines for Model Setup and Checking Model Compatibility
Set up and configure your Simulink model for HDL code generation compatibility.
Modeling with Simulink, Stateflow, and MATLAB Function Blocks
Learn how to model using Simulink blocks, MATLAB Function blocks, and Stateflow blocks.
Terminate Unconnected Block Outputs and Usage of Commenting Blocks
Learn why you must terminate block outputs and how to comment out blocks for code generation.
Identify and Programmatically Change and Display HDL Block Parameters
Learn how to adjust block sizes, annotate block parameters, and find and change parameters.

DUT Subsystem and Hierarchical Modeling Guidelines (Guideline ID 1.2)

DUT Subsystem Guidelines
Considerations for using the DUT Subsystem for HDL code and test bench generation.
Hierarchical Modeling Guidelines
Design considerations when building your Simulink model hierarchically for HDL code generation.

Guidelines for Buses and Vectors (Guideline ID 1.3)

Design Considerations for Matrices and Vectors
Learn how to efficiently use vectors and matrix data types in HDL Coder.
Use Buses to Improve Readability of Model and Generate HDL Code
Learn how to improve model readability by using bus signals and generate HDL code.

Guidelines for Clock Bundle and Native Floating Point (Guideline ID 1.4 - 1.5)

Guidelines for Clock and Reset Signals
Clock, reset, and clock enable signal considerations.
Modeling with Native Floating Point
Understand best practices for using native floating-point support in HDL Coder.