Fixed-Point Blockset Getting Started Preface What Is the Fixed-Point Blockset? Exploring the Blockset Related Products System Requirements Associated Products Using This Guide Expected Background Learning the Fixed-Point Blockset How This Book Is Organized Installation Information Typographical Conventions Introduction Physical Quantities and Measurement Scales Selecting a Measurement Scale Example: Selecting a Measurement Scale Why Use Fixed-Point Hardware? Why Use the Fixed-Point Blockset? The Development Cycle The Fixed-Point Blockset Library Fixed-Point Blocks Compatibility with Simulink Blocks How to Get Online Help Getting Started An Overview of Blockset Features Configuring Fixed-Point Blocks Additional Features and Capabilities Example: Converting from Doubles to Fixed-Point Block Descriptions Simulation Results Demos Basic Demos Advanced Demos: Filters and Systems Using the Fixed-Point Blockset Data Types and Scaling Fixed-Point Numbers Signed Fixed-Point Numbers Radix Point Interpretation Scaling Quantization Range and Precision Example: Fixed-Point Scaling Example: Constant Scaling for Best Precision Floating-Point Numbers Scientific Notation The IEEE Format Range and Precision Exceptional Arithmetic Arithmetic Operations Limitations on Precision Rounding Padding with Trailing Zeros Example: Limitations on Precision and Errors Example: Maximizing Precision Limitations on Range Saturation and Wrapping Guard Bits Example: Limitations on Range Recommendations for Arithmetic and Scaling Addition Accumulation Multiplication Gain Division Summary Parameter and Signal Conversions Parameter Conversions Signal Conversions Rules for Arithmetic Operations Computational Units Addition and Subtraction Multiplication Division Shifts Example: Conversions and Arithmetic Operations Realization Structures Direct Form II Series Cascade Form Parallel Form Tutorial: Feedback Controller Simulation Simulink Model of a Feedback Design Idealized Feedback Design Digital Controller Realization Simulation Results Simulation 1: Initial Guess at Scaling Simulation 2: Global Override Simulation 3: Automatic Scaling Simulation 4: Individual Override Building Systems and Filters Targeting an Embedded Processor Size Assumptions Operation Assumptions Design Rules Integrator Realizations Trapezoidal Integration Backward Integration Forward Integration Derivative Realizations Filtered Derivative Derivative Lead Filter or Lag Filter Realization State-Space Realization Index of Examples Reference Function Reference Alphabetical List of Functions autofixexp fixptbestexp fixptbestprec fixpt_convert fixpt_convert_prep fixpt_restore_links float fpupdate fxptdlg sfix sfrac showfixptsimranges sint ufix ufrac uint Block Reference The Block Reference Page The Block Dialog Box Common Block Features Block Parameters Block Icon Labels Port Data Type Display Blocks Grouped by Category Alphabetical List of Blocks FixPt Absolute Value FixPt Bitwise Operator FixPt Constant FixPt Conversion FixPt Conversion Inherited FixPt Data Type Propagation FixPt Dead Zone FixPt Dot Product FixPt Dynamic Look-Up Table FixPt FIR FixPt Gain FixPt Gateway In FixPt Gateway In Inherited FixPt Gateway Out FixPt Integer Delay FixPt Logical Operator FixPt Look-Up Table FixPt Look-Up Table (2D) FixPt Matrix Gain FixPt MinMax FixPt Multiport Switch FixPt Product FixPt Relational Operator FixPt Relay FixPt Saturation FixPt Sign FixPt Sum FixPt Switch FixPt Tapped Delay FixPt Unary Minus FixPt Unit Delay FixPt Zero-Order Hold Code Generation Code Generation Support Languages Storage Class of Variables Storage Class of Parameters Rounding Modes Overflow Handling Blocks Scaling Generating Pure Integer Code Example: Generating Pure Integer Code Using the Simulink Accelerator Using External Mode or rsim Target External Mode Rapid Simulation Target Customizing Generated Code Macros Versus Functions Bit Sizes for Target C Compiler Selected Bibliography Printable Documentation (PDF) Product Page (Web)