Fixed-Point Matrix Operations in Simulink

Optimized fixed-point math and matrix operations blocks for efficient HDL code

Use the Fixed-Point Designer™ library of blocks to perform fixed-point math operations.

Use the Fixed-Point Designer HDL Optimized library of blocks to perform fixed-point math and matrix operations and generate efficient HDL code. These blocks model design patterns for systems of linear equations and core matrix operations, such as QR Decomposition, for hardware-efficient implementation on FPGAs. Generate HDL code for designs that incorporate these blocks using HDL Coder™.

Blocks

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Math Operations

Hyperbolic Tangent HDL Optimized	Computes CORDIC-based hyperbolic tangent and generates optimized HDL code
Normalized Reciprocal HDL Optimized	Computes normalized reciprocal and generates optimized HDL code
Real Reciprocal HDL Optimized	Compute reciprocal and generate optimized HDL code
Real Divide HDL Optimized	Divide one real input by another and generate optimized HDL code
Complex Divide HDL Optimized	Divide one input by another and generate optimized HDL code
Divide by Constant HDL Optimized	Divide input by a constant and round to integer and generate optimized HDL code
Modulo by Constant HDL Optimized	Perform mod operation with a constant denominator and generate optimized HDL code
Divide by Constant and Round	Divide input by a constant and round to integer
Modulo by Constant	Perform modulo operation with a constant denominator

Linear System Solvers

Burst Implementation

Real Burst Matrix Solve Using QR Decomposition	Compute the value of x in the equation Ax = B for real-valued matrices using QR decomposition
Real Burst Matrix Solve Using Q-less QR Decomposition	Compute the value of X in the equation A'AX = B for real-valued matrices using Q-less QR decomposition
Complex Burst Matrix Solve Using QR Decomposition	Compute the value of x in the equation Ax = B for complex-valued matrices using QR decomposition
Complex Burst Matrix Solve Using Q-less QR Decomposition	Compute the value of X in the equation A'AX = B for complex-valued matrices using Q-less QR decomposition

Partial-Systolic Implementation

Real Partial-Systolic Matrix Solve Using QR Decomposition	Compute value of x in Ax = B for real-valued matrices using QR decomposition
Real Partial-Systolic Matrix Solve Using Q-less QR Decomposition	Compute value of X in A'AX = B for real-valued matrices using Q-less QR decomposition
Real Partial-Systolic Matrix Solve Using Q-less QR Decomposition with Forgetting Factor	Compute value of X in A'AX = B for real-valued matrices with infinite number of rows using Q-less QR decomposition
Complex Partial-Systolic Matrix Solve Using QR Decomposition	Compute value of x in Ax = B for complex-valued matrices using QR decomposition
Complex Partial-Systolic Matrix Solve Using Q-less QR Decomposition	Compute the value of X in A'AX = B for complex-valued matrices using Q-less QR decomposition
Complex Partial-Systolic Matrix Solve Using Q-less QR Decomposition with Forgetting Factor	Compute the value of X in A'AX = B for complex-valued matrices with infinite number of rows using Q-less QR decomposition

Matrix Factorizations

Burst Implementation

Real Burst QR Decomposition	QR decomposition for real-valued matrices
Real Burst Q-less QR Decomposition	Q-less QR decomposition for real-valued matrices
Complex Burst QR Decomposition	QR decomposition for complex-valued matrices
Complex Burst Q-less QR Decomposition	Q-less QR decomposition for complex-valued matrices

Partial-Systolic Implementation

Real Partial-Systolic QR Decomposition	QR decomposition for real-valued matrices
Real Partial-Systolic Q-less QR Decomposition	Q-less QR decomposition for real-valued matrices
Real Partial-Systolic Q-less QR Decomposition with Forgetting Factor	Q-less QR decomposition for real-valued matrices with infinite number of rows
Complex Partial-Systolic QR Decomposition	QR decomposition for complex-valued matrices
Complex Partial-Systolic Q-less QR Decomposition	Q-less QR decomposition for complex-valued matrices
Complex Partial-Systolic Q-less QR Decomposition with Forgetting Factor	Q-less QR decomposition for complex-valued matrices with infinite number of rows

Topics

Math Operations

Implement Hardware-Efficient Hyperbolic Tangent

Implement a hardware-efficient hyperbolic tangent.

How to Use HDL Optimized Normalized Reciprocal

This example shows how and when to use the normalizedReciprocal function and the Normalized Reciprocal HDL Optimized block to compute the normalized reciprocal of an input.

Implement Hardware-Efficient Real Divide HDL Optimized

How to use the Real Divide HDL Optimized block.

Implement Hardware-Efficient Complex Divide HDL Optimized

How to use the Complex Divide HDL Optimized block.

Implement HDL Optimized Modulo By Constant

How to use the Modulo by Constant HDL Optimized block.