HDL Import

Import HDL code into the Simulink^® modeling environment using the importhdl function

Use HDL import to import synthesizable HDL code into the Simulink modeling environment. When you run the importhdl function, HDL import parses the input HDL file and generates a Simulink model. When generating the model unconnected components that do not directly contribute to the output are removed. The model visually represents the HDL code in terms of functionality and behavior. You can compile and run the model to verify the functionality of the HDL code.

Round-trip code generation with HDL import is not recommended. Do not use HDL import to import the HDL code that was previously generated from a Simulink model by using the HDL Coder™ software. The Simulink model that you create is typically at a higher abstraction level. The model generated by HDL import might be at a lower abstraction level. The HDL code you generate from this model might not be usable for production code.

To generate production HDL code, develop your algorithm by using Simulink blocks, MATLAB^® code, or Stateflow^® charts. Then, use HDL Coder to generate code.

Functions

importhdl Import Verilog or VHDL code and generate Simulink model

Topics

Import HDL Code and Generate Simulink Model
Import HDL code in a Simulink environment and generate Simulink model.
Supported Verilog Constructs for HDL Import
Supported Verilog constructs that you can import into the model-based design environment.
Supported VHDL Constructs When Generating Simulink Models from VHDL Code
Supported VHDL constructs that you can import into the model-based design environment.
Verilog Dataflow Modeling with HDL Import
Supported HDL dataflow patterns that you can use when importing the HDL code into the model-based design environment.
Supported Synthesizable RTL Constructs and keywords in HDL Coder
Supported Synthesizable VHDL and Verilog RTL Constructs and keywords in HDL Coder for code generation.

Featured Examples

Generate Simulink Model from CORDIC Atan2 Verilog Code

Import a file containing Verilog® code and generate the corresponding Simulink® model by using the importhdl function. importhdl imports and parses the specified Verilog files to generate the corresponding Simulink model. The Verilog code in this example contains a CORDIC atan2 algorithm.

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