Fixed-Point Blockset

Function Reference

This chapter contains reference pages for the Fixed-Point Blockset M-file functions. In some cases, you will not call these functions from the MATLAB command line. Instead, they are automatically called when you specify certain parameter values via block dialog boxes or via the Fixed-Point Blockset Interface tool. The functions are listed below

Fixed-Point Blockset Functions

Function
Description

autofixexp
Automatically change the scaling for each fixed- point block that does not have its scaling locked.

fixptbestexp
Determine the exponent that gives the best precision fixed-point representation of a value.

fixptbestprec
Determine the maximum precision available for the fixed-point representation of a value.

fixpt_convert
Convert Simulink models and subsystems to fixed-point equivalents.

fixpt_convert_prep
Prepare a Simulink model for more complete conversion to fixed point.

fixpt_restore_links
Restore links for fixed-point blocks.

float
Create a MATLAB structure describing a floating-point data type.

fpupdate
Update obsolete fixed-point blocks from previous Fixed-Point Blockset releases to current fixed-point blocks.

fxptdlg
Launch the Fixed-Point Blockset Interface tool.

sfix
Create a MATLAB structure describing a signed generalized fixed-point data type.

sfrac
Create a MATLAB structure describing a signed fractional data type.

showfixptsimranges
Display the logged maximum and minimum values from the last simulation.

sint
Create a MATLAB structure describing a signed integer data type.

ufix
Create a MATLAB structure describing an unsigned generalized fixed-point data type.

ufrac
Create a MATLAB structure describing an unsigned fractional data type.

uint
Create a MATLAB structure describing an unsigned integer data type.

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**Fixed-Point Blockset Functions**
Function	Description
`autofixexp`	Automatically change the scaling for each fixed- point block that does not have its scaling locked.
`fixptbestexp`	Determine the exponent that gives the best precision fixed-point representation of a value.
`fixptbestprec`	Determine the maximum precision available for the fixed-point representation of a value.
`fixpt_convert`	Convert Simulink models and subsystems to fixed-point equivalents.
`fixpt_convert_prep`	Prepare a Simulink model for more complete conversion to fixed point.
`fixpt_restore_links`	Restore links for fixed-point blocks.
`float`	Create a MATLAB structure describing a floating-point data type.
`fpupdate`	Update obsolete fixed-point blocks from previous Fixed-Point Blockset releases to current fixed-point blocks.
`fxptdlg`	Launch the Fixed-Point Blockset Interface tool.
`sfix`	Create a MATLAB structure describing a signed generalized fixed-point data type.
`sfrac`	Create a MATLAB structure describing a signed fractional data type.
`showfixptsimranges`	Display the logged maximum and minimum values from the last simulation.
`sint`	Create a MATLAB structure describing a signed integer data type.
`ufix`	Create a MATLAB structure describing an unsigned generalized fixed-point data type.
`ufrac`	Create a MATLAB structure describing an unsigned fractional data type.
`uint`	Create a MATLAB structure describing an unsigned integer data type.

Reference Alphabetical List of Functions