National Instruments NI MATRIX - Manual

National Instruments NI MATRIX

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Table of Contents:

  • Page 3 – Important Information; Warranty; Patents; WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS
  • Page 4 – Conventions; File»Page Setup»Options
  • Page 5 – Contents
  • Page 13 – Index
  • Page 14 – Manual Organization
  • Page 15 – General Information; Configuration File; Language-Specific Information
  • Page 16 – Structure and Content of the Generated Code; Additional Netscape Information
  • Page 17 – Related Publications
  • Page 18 – C Language Reference; Stand-Alone Simulation; Compiling on Various Supported Platforms
  • Page 19 – System-Specific Files
  • Page 20 – Platform
  • Page 21 – Data Types; File
  • Page 22 – Target-Specific Utilities; Routine
  • Page 25 – ERROR: Conditions Detected in the Generated Code
  • Page 27 – UserCode Blocks
  • Page 28 – Linking Handwritten UCBs with AutoCode Applications
  • Page 30 – Argument
  • Page 33 – Linking Handwritten UCBs (for AutoCode) with SystemBuild
  • Page 35 – Variable Interface UCB; Interface Ordering; Interface Examples; Inputs and Outputs
  • Page 36 – Function Prototype
  • Page 37 – Linking a Variable Interface UCB with the Simulator; Procedure SuperBlocks; Generating Reusable Procedures; Linking Procedures with the SystemBuild Simulator
  • Page 39 – Linking Procedures with Real-Time Applications or Simulator; Invoking Generated Procedures Directly
  • Page 43 – C Fixed-Point Arithmetic
  • Page 45 – Generated Code with Fixed-Point Variables; Number
  • Page 47 – User Types
  • Page 48 – Overflow Protection
  • Page 49 – Macro Interface
  • Page 50 – Function Interface
  • Page 52 – Fixed-Point Conversion and Arithmetic Macros; Conversion Macros
  • Page 55 – Arithmetic Macros
  • Page 56 – Operation
  • Page 57 – Method 1: Using Wordsize Extension
  • Page 58 – Method 2: Not Using Wordsize Extension
  • Page 59 – 2-Bit Multiplication and Division Macros
  • Page 61 – Fixed-Point Relational Macros
  • Page 62 – Some Relevant Issues
  • Page 63 – Supported Ada Compilers for the Stand-Alone Library
  • Page 64 – Supplied Templates
  • Page 65 – Category
  • Page 78 – Ada Fixed-Point Arithmetic; How to Generate Real-Time Code
  • Page 79 – Fixed-Point Data Types; Generic Functions; Instantiated Functions
  • Page 80 – Package Dependencies
  • Page 82 – Name
  • Page 83 – Compilation Example; File Name
  • Page 85 – Fixed-Point Type Declarations
  • Page 86 – Function Name
  • Page 88 – Instantiated Functions Package; Operator Instantiations
  • Page 89 – Conversion Function Instantiations; Conversion Type
  • Page 90 – Sample Package
  • Page 91 – Addition and Subtraction Functions
  • Page 93 – Multiplication and Division Functions; Conversion Functions
  • Page 94 – Language-Defined Conversion; Explicit Rounding Conversion
  • Page 95 – Using System-Level Parameters to Generate Instantiations; Using Subsystem-Level Parameters to Generate Instantiations
  • Page 96 – System Scope Operators and Conversions
  • Page 97 – Known Ada Compiler Problems; Comparing Results to SystemBuild’s Simulator; Round and Truncation; Different Rounding Modes at Midpoint
  • Page 98 – Floating-Point Textual Representation; No-Op Conversion Function; Mode
  • Page 100 – Real-Time Operating System Configuration File
  • Page 101 – Configuration Items
  • Page 102 – Column
  • Page 103 – Scheduler Priority Table; Subsystem Table
  • Page 104 – Interrupt Procedure SuperBlock Table
  • Page 105 – Background Procedure SuperBlock Table
  • Page 106 – Startup Procedure SuperBlock Table; Processor IP Name Table
  • Page 107 – Version Table; Using the Configuration File
  • Page 109 – Generated Code Architecture; Symbolic Name Creation; Default Names
  • Page 110 – Signal Naming; Duplicate Names; Subsystem and Procedure Boundaries
  • Page 111 – Global Storage; Global Variable Blocks
  • Page 112 – Global Variable Block and %var Equivalence
  • Page 113 – Discrete and Continuous SuperBlocks Versus Subsystems
  • Page 114 – Block Ordering
  • Page 115 – Scheduler External Interface Layer; System External Interface Layer
  • Page 116 – Discrete Subsystem Interface Layer
  • Page 117 – Static Data Within Subsystems; State Data
  • Page 118 – Procedure Data; Init Phase; Output Phase; State Phase; Copy Back and Duplicates
  • Page 119 – Error Handling; Standard Procedures; Structure-Based Interface; Input
  • Page 120 – Unrolled Interface; Phases and Error Handling
  • Page 123 – Procedure Arguments
  • Page 125 – Array Element
  • Page 126 – Extended Procedure Information Structure; Caller Identification
  • Page 127 – Compatibility Issues; Unique Identifier
  • Page 128 – Macro Procedure; Interface; Macro Name
  • Page 129 – Asynchronous Procedures; Interrupt
  • Page 130 – Changing %var Values During Startup; Condition Block; Default Mode; BlockScript Block
  • Page 132 – Environment Variables
  • Page 133 – Init; Output; State
  • Page 134 – Default Phase; States
  • Page 135 – Local Variables and Phases; Discrete Semantics
  • Page 137 – Continuous Semantics; Loops and Scalar Code
  • Page 138 – Rolling Loops with Scalar Code Generation
  • Page 139 – Vectorized Code; Types of Loops
  • Page 140 – Examples of Rolled and Unrolled Loops; Loop Type
  • Page 141 – Parameters
  • Page 143 – Optimizations; Dead Code Elimination
  • Page 144 – Implicit Type Conversion; Directive
  • Page 145 – Phases of the UCB
  • Page 146 – Parameterized UCB Callout
  • Page 147 – Software Constructs; IfThenElse Block; WHILE Block
  • Page 148 – BREAK Block; Local Variable Block
  • Page 149 – Sequencer Block; Difference Between Local and Global Variable Blocks; Scope; Continuous Subsystem
  • Page 150 – Explicit Phases
  • Page 151 – Multiprocessor Code Generation; Shared Memory Architecture
  • Page 152 – Distributed Memory Architecture; Shared Memory Callouts; Callout Naming Convention
  • Page 153 – Mapping Command Options; Fixed-Point Support for Multiprocessor AutoCode
  • Page 154 – Shared Memory Fixed-Point Callouts in AutoCode/C; From Local Memory
  • Page 155 – Reading Shared Memory; Shared Variable Block Support
  • Page 158 – Shared Memory Callout Option; Read Shared Variable Block Callouts
  • Page 160 – Entering with Extended Procedure Info Option Specified; Leaving with Extended Procedure Info Option Specified
  • Page 161 – Shared Global Variable Blocks; Entering Shared Critical Section
  • Page 164 – Vectorized Code Generation; How Code Is Generated
  • Page 165 – Scalar Gain Block Example
  • Page 166 – Vectorized Gain Block Example
  • Page 167 – Array Subscripts
  • Page 168 – Signal Connectivity
  • Page 170 – Vectorization Modes; Maximal Vectorization; Mixed Vectorization
  • Page 171 – Vector Labels and Names; Example
  • Page 177 – Vectorization Features
  • Page 178 – Multiple Arrays within a Block
  • Page 180 – Split-Merge Inefficiency; Split Vector
  • Page 182 – Merge
  • Page 184 – External Outputs
  • Page 186 – Eliminating Copy-Back; Vectorized Standard Procedure Interface
  • Page 188 – Ada Array Aggregates and Slices
  • Page 190 – Vectorization of the BlockScript Block
  • Page 191 – Matrix Outputs
  • Page 192 – Read from Variable Blocks
  • Page 196 – Restart Capability
  • Page 199 – Merging INIT Sections
  • Page 202 – Reuse of Temporary Block Outputs; Reuse Temporaries as Specified; Maximal Reuse of Temporaries
  • Page 204 – Constant Propagation
  • Page 207 – Optimizing with Constant Blocks
  • Page 208 – Optimizing with Callout Blocks
  • Page 210 – Summary; Block
  • Page 212 – Task Posting Policies
  • Page 213 – Standard AutoCode Scheduler
  • Page 215 – Scheduler Pipeline
  • Page 217 – Managing DataStores in the Scheduler
  • Page 219 – Sim Cdelay Scheduler
  • Page 220 – State Transition Diagrams of Tasks under Sim Cdelay
  • Page 222 – Implementing the Sim Cdelay AutoCode Scheduler; Implementation Details
  • Page 223 – DataStore Priority Problem
  • Page 224 – Using the Sim Cdelay Scheduler
  • Page 225 – Template Configuration for Enhanced Performance
  • Page 226 – Shortcomings of the Sim Cdelay Scheduler
  • Page 229 – Parameterless Procedure; Data Monitoring/Injection; Specifying Monitored Signals
  • Page 230 – Generating Code for Monitored Signals
  • Page 232 – Specifying Parameterless Procedure Interface; Input Specification
  • Page 233 – Output Specification; Global Output Connection
  • Page 234 – Condition Block Code Generation; Reusing a Parameterless Procedure; Generating Code for Parameterless Procedures
  • Page 235 – Issues and Limitations; Communication Between Subsystems
  • Page 236 – Connection to External Output
  • Page 237 – Analyzer and AutoCode Warnings; Command Options
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NI MATRIXx

TM

AutoCode

TM

Reference

AutoCode Reference

April 2007
370768C-01

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Summary

Page 3 - Important Information; Warranty; Patents; WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS

Important Information Warranty The media on which you receive National Instruments software are warranted not to fail to execute programming instructions, due to defects in materials and workmanship, for a period of 90 days from date of shipment, as evidenced by receipts or other documentation. Nati...

Page 4 - Conventions; File»Page Setup»Options

Conventions The following conventions are used in this manual: < > Angle brackets that contain numbers separated by an ellipsis represent a range of values associated with a bit or signal name—for example, DIO<3..0>. » The » symbol leads you through nested menu items and dialog box optio...

Page 5 - Contents

© National Instruments Corporation v AutoCode Reference Contents Chapter 1Introduction Manual Organization ..................................................................................................... 1-1General Information .......................................................................

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