Fixed-Point Blockset

Overview of the Block Reference Pages

To open the main Fixed-Point library, type

• fixpt
  

at the MATLAB prompt. This opens the main library window as shown below.

The main library contains twelve sublibraries. To open a sublibrary, double-click on its icon. These tables describe how the Fixed-Point Blockset blocks are grouped into the sublibraries:

• Bits
• Calculus
• Data Type
• Delays & Holds
• Edge Detect
• Filters
• Logic & Comparison
• LookUp
• Math
• Nonlinear
• Select
• Sources

Fixed-Point Blockset block reference pages appear in alphabetical order and contain some or all of this information:

• The block name and icon
• The purpose of the block
• A description of the block
• Additional remarks about block usage
• The data types and numeric type (complex or real) accepted and generated by the block
• The block parameter dialog box, including a brief description of each parameter
• The rules for some or all of these topics, as they apply to the block:
• Converting block parameters from double precision numbers to Fixed-Point Blockset data types
• Converting the input data type(s) to the output data type
• Performing block operations between inputs and parameters
• An example using the block
• The block characteristics, including some or all of these, as they apply to the block:
• Input Port(s)--the data type(s) accepted by the block and whether the inputs can be a scalar or vector
• Output Port(s)--the data type(s) produced by the block and whether the outputs can be a scalar or vector
• Dimensionalized--whether the block accepts and/or generates multidimensional signal arrays. For more information, see Signal Basics in the Using Simulink documentation.
• Direct Feedthrough--whether the block or any of its ports has direct feedthrough
• Sample Time--how the block's sample time is determined, whether by the block itself or inherited from the block that drives it or is driven by it
• Scalar Expansion--whether or not scalars are expanded to vectors
• States--the number of discrete states
• Vectorized--whether or not the block accepts and/or generates vector signals
• Zero Crossing--whether the block detects zero-crossing events. For more information, see Zero Crossing Detection in the Using Simulink documentation.

Bits

The Block Dialog Box