Fixed-Point Blockset

Advanced Fixed-Point Blockset Demos

The advanced demos are intended to show you how to build and test systems suited to your particular needs. The output of these demos is compared to the output of analogous built-in Simulink blocks with identical input.

The advanced demos are listed below.

Demo Name	Description
Fixed-Point Integrators	Compare output from the Integrator Trapezoidal, Integrator Backward, and Integrator Forward blocks to output from the Simulink Discrete Integrator block.
Fixed-Point Derivatives	Compare output from the Derivative and Derivative: Filtered realizations to output from the Simulink derivatives built using the Discrete Filter and Transfer Fcn blocks.
Fixed-Point Lead and Lag Filters	Compare output from the Lead and Lag Filter block to output from analogous Simulink filters built using the Discrete Filter block.
Fixed-Point State Space	Compare output from the State-Space Realization realization to output from the analogous built-in Simulink State-Space and Discrete State-Space blocks.
Fixed-Point Data Type Propagation	Illustrate data type propagation using the Data Type Propagation block, and the "Inherit via back propagation" setting.
Fixed-Point Function Approximation	Compare the fixed-point lookup approximation of a function with the ideal function.

Additional fixed-point demos for direct form II, series cascade form, and parallel form realizations are discussed in Realization Structures.

Basic Fixed-Point Blockset Demos

Data Types and Scaling