Simulink® Fixed Point™ 5.6

Latest Features

Version 5.6

Released: 01 Mar 2008
 

Version 5.6, part of Release 2008a, includes the following enhancements:

• Fixed-Point Tool enhanced to provide autoscaling based on specified design minimum and maximum values
• New Fixed-Point Advisor facilitates converting a floating-point model or subsystem to an equivalent fixed-point representation
• Lookup Table (n-D) block now supports fixed-point data types
• Accumulator data type of the Sum block can be specified using any data type supported by Simulink, including fixed-point data types

See the Release Notes for details.

Update Now

• Download the latest version if your software maintenance service is current.
• Purchase or request a renewal quote if your maintenance service has lapsed.
• Try the latest version by downloading or requesting trial software.

---

Version 5.5.1

Released: 08 May 2008
 

Version 5.5.1, part of the Simulink product family update for Release 2007b, resolves several key customer-reported issues.

Read about the latest bug fixes for:

• Fixed-Point Toolbox 2.1.1
• Real-Time Workshop 7.0.1
• Real-Time Workshop Embedded Coder 5.0.1
• Simscape 2.0.1
• Simulink 7.0.1
• Simulink Design Verifier 1.1.1
• Simulink Fixed Point 5.5.1
• Stateflow 7.0.1
• Stateflow Coder 7.0.1
• Simulink Verification and Validation 2.2.1 (represented in Simulink 7.0.1 reports)

Version 5.5

Released: 01 Sep 2007
 

Version 5.5, part of Release 2007b, includes the following enhancements:

• New Fixed-Point Tool options that provide batch control of signal logging for models and subsystems
• New standardized user interface for specifying fixed-point data types associated with Simulink blocks and data objects, as well as Stateflow data
• Additions and subtractions use an accumulator data type for improved precision and accuracy of results and reduced saturation code generated by Real-Time Workshop
• Product blocks that specify division as the first operator automatically reorder inputs to improve efficiency of operation and precision of results
• Data type conversions involving nonzero bias using an accumulator data type to reduce intermediate saturations and improve accuracy of results

See the Release Notes for details.

Version 5.4.1

Released: 03 May 2007
 
Simulink Fixed Point 5.4.1 resolves several key customer-reported issues. It is part of a Simulink product family update for Release 2007a. See the Release Notes for details.

In addition to Simulink Fixed Point, seven other products were included in this update:

• Real-Time Workshop 6.6.1
• Real-Time Workshop Embedded Coder 4.6.1
• Simulink 6.6.1
• Simulink Accelerator 6.6.1
• Simulink Verification and Validation 2.1.1
• Stateflow 6.6.1
• Stateflow Coder 6.6.1

Version 5.4

Released: 01 Mar 2007
 

Version 5.4, part of Release 2007a, includes the following enhancements:

• Enhanced Fixed-Point Tool provides a new interactive graphical environment for analyzing and scaling fixed-point systems

See the Release Notes for details.

Version 5.3

Released: 01 Sep 2006
 

Version 5.3, part of Release 2006b, includes the following enhancements:

• New Prelookup block and Interpolation Using Prelookup block support for fixed-point data types
• SQRT operation in Math Function block support for fixed-point data types

See the Release Notes for details.

Version 5.2.1

Released: 20 Apr 2006
 
Simulink Fixed Point 5.2.1 resolves many customer-reported issues. It is part of a Simulink product family update for Release 2006a. See the Release Notes for details on version 5.2.1.

In addition to Simulink Fixed Point, seven other products were included in this update:

• Real-Time Workshop 6.4.1
• Real-Time Workshop Embedded Coder 4.4.1
• Simulink 6.4.1
• Simulink Accelerator 6.4.1
• Simulink Report Generator 3.0.1
• Stateflow 6.4.1
• Stateflow Coder 6.4.1

Version 5.2

Released: 01 Mar 2006
 

Version 5.2, part of Release 2006a, includes the following enhancement:

• New "simplest" rounding mode for more efficient code

See the Release Notes for details.

Version 5.1.2

Released: 01 Sep 2005
 

Version 5.1.2, part of Release 14 with Service Pack 3, includes the following enhancement:

• Fixed-point data type support for Embedded MATLAB functions in Simulink and Stateflow

See the Release Notes for details.

Version 5.1.1

Released: 26 May 2005
 
Simulink Fixed Point 5.1.1 resolves many customer-reported issues. It is part of a Simulink product family update for Release 14 with Service Pack 2.

In addition to Simulink Fixed Point, six other products were included in this update:

• Real-Time Workshop 6.2.1
• Real-Time Workshop Embedded Coder 4.2.1
• Simulink 6.2.1
• Simulink Accelerator 6.2.1
• Stateflow 6.2.1
• Stateflow Coder 6.2.1

Version 5.1

Released: 07 Mar 2005
 

• In the wrapping mode conversion from floating-point to integer (fixed-point) data types, you can now set the generated code to be efficient or portable.
• Level 2 m-file S-functions now support fixed-point data types.

Additional fixed-point updates are available in Stateflow, the Signal Processing Blockset, and the Video and Image Processing Blockset.

Version 5.0.1

Released: 22 Sep 2004
 

Version 5.0.1 includes bug fixes.

Version 5 (formerly Fixed-Point Blockset)

Released: 02 Jun 2004
 

• Integration of all fixed-point blocks into the Simulink library
• Increased functionality with the Signal Processing Blockset, including more than 80 blocks with fixed-point support, and easier transition from floating-point signal processing designs
• Autoscaling within Stateflow
• Improved fixed-point code generation with additional optimizations
• Ability to view fixed-point signal values in decimal, BIN, or HEX format
• Ability to independently verify fixed-point algorithms in MATLAB with the Fixed-Point Toolbox (now available to all Simulink Fixed Point customers)

If you use the Fixed-Point Blockset, visit MathWorks Release 14 product changes for additional information.

Version 4.1.1

Released: 29 Apr 2004
 

Fixed-Point Blockset 4.1.1 resolves many customer-reported issues.

Version 4.1

Released: 22 Sep 2003
 

New Features

• Code generation for lookup tables and division has been improved in Version 4.1 to reduce ROM usage.
• An improved treatment of tunable parameters that removes the compatibility problems introduced in Version 4.0 for models containing unified fixed-point blocks.

Known Problems and Corrections

Version 4.1 corrects the following known problems:

• The Plot System dialog, accessible from the Fixed-Point Settings interface, no longer plots the wrong signal or issues incorrect error messages
• Fixed-Point Settings interface is now usable on systems that define large default system fonts
• A fixed-point multiplication error, that occurred in very specific circumstances for simulation only, has been corrected

For additional information about the Fixed-Point Blockset 4.1, see the Release Notes.