DSP Block Reference (DSP Blockset)

DSP Blockset

Main Sections of a Block Reference Page

The block reference entries appear in alphabetical order and each contains most of the following sections.

Section
Description

"Purpose"
The purpose of the block.

"Library"
The library or libraries where the block can be found.

"Description"
A description of the block's use.

"Dialog Box"
The block's dialog box and parameters. Tunable parameters are labeled "Tunable". See the next section, About Tunable Parameters for more information.

"Supported Data Types"
The data types supported by the block. See the following section, About Supported Data Types for more information.

"See Also"
A list of related blocks and functions.

Section	Description
"Purpose"	The purpose of the block.
"Library"	The library or libraries where the block can be found.
"Description"	A description of the block's use.
"Dialog Box"	The block's dialog box and parameters. Tunable parameters are labeled "Tunable". See the next section, About Tunable Parameters for more information.
"Supported Data Types"	The data types supported by the block. See the following section, About Supported Data Types for more information.
"See Also"	A list of related blocks and functions.

About Tunable Parameters

Tunable parameters are block parameters whose settings you can change or tune during a simulation. In the "Dialog Box" section of the block reference pages, these parameters are marked "Tunable" in the parameter descriptions. To tune a tunable parameter during a simulation, open the block parameters dialog, change the parameter to the desired setting, then press the OK or Apply button.

Parameters that are not labeled "Tunable" are not tunable. During a simulation, the fields, pull-down menus, and check boxes of nontunable parameters become gray and cannot be edited.

About Supported Data Types

All DSP Blockset blocks support the double data type. Many blocks support all built-in data types, as well as the fixed-point data type and properly defined Simulink custom data types. To see which data types a particular block supports, check the "Supported Data Types" section of its reference page.

Data Types Supported by the DSP Blockset:
(Note that not all blocks support all of the following data types)
Fixed-point data type

Custom data types

Simulink built-in data types (and commands for casting values to these data types):

Boolean -- boolean

Integer (8-,16-, or 32-bits) -- int8, int16, int32

Unsigned integer (8-,16-, or 32-bits) -- uint8, uint16, uint32

Single-precision floating point -- single

Double-precision floating point -- double

Data Types Supported by the DSP Blockset: (Note that not all blocks support all of the following data types) Fixed-point data type Custom data types Simulink built-in data types (and commands for casting values to these data types): Boolean -- `boolean` Integer (8-,16-, or 32-bits) -- `int8`, `int16`, `int32` Unsigned integer (8-,16-, or 32-bits) -- `uint8`, `uint16`, `uint32` Single-precision floating point -- `single` Double-precision floating point -- `double`

Correctly Defining Custom Data Types. Custom data types are user-defined data types. You must define your custom data types by following the guidelines in the Custom Data Types section in the "Implementing Block Features" section of the "Writing S-Functions" Simulink documentation. If you do not follow the Simulink guidelines for creating custom data types, the DSP Blockset blocks will not support your custom data types.

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