HDL Applications for the MATLAB Function Block

Structure of Generated HDL Code

The MATLAB Function block contains a MATLAB^® function in a model. The inputs and outputs of the function are represented by the ports on the block, which allow you to interface your model to the function code. When you generate HDL code for a MATLAB Function block, HDL Coder™ generates two HDL files:

• A file containing entity and architecture code that implement the actual algorithm or computations generated for the MATLAB Function block.

• A file containing an entity definition and RTL architecture that provide a black box interface to the algorithmic code generated for the MATLAB Function block.

The structure of these code files is analogous to the structure of the model, in which a subsystem provides an interface between the root model and the function in the MATLAB Function block.

HDL Applications

The MATLAB Function block supports a subset of the MATLAB language that is well-suited to HDL implementation of various DSP and telecommunications algorithms, such as:

• Sequence and pattern generators

• Encoders and decoders

• Interleavers and de-interleavers

• Modulators and demodulators

• Multipath channel models; impairment models

• Timing recovery algorithms

• Viterbi algorithm; Maximum Likelihood Sequence Estimation (MLSE)

• Adaptive equalizer algorithms

You can also use the MATLAB Function block in a wide variety of floating-point applications. Both single and double types are supported. To learn more, see HDL Optimizations Across MATLAB Function Block Boundary Using MATLAB Datapath Architecture.