Echelon Neuron C podręczniki

Echelon Neuron C Instrukcja Użytkownika (268 strony)

Marka: Echelon | Kategoria: Oprogramowanie | Rozmiar: 1.39 MB |

Angielski

Spis treści

C Programmer’s Guide

1

Welcome

3

Audience

3

Related Documentation

4

Table of Contents

7

What Is Neuron C?

14

Unique Aspects of Neuron C

15

Neuron C Integer Constants

16

Neuron C Variables

17

Neuron C Variable Types

17

Neuron C Storage Classes

18

Variable Initialization

19

Neuron C Declarations

19

Configuration Properties

21

Driven Protocols

23

Low-Level Messaging

23

I/O Devices

23

Functions

25

Focusing on a Single Device

27

When Clauses

28

When Statement

29

Predefined Events

30

Event Processing

32

Reset Event

33

User-Defined Events

34

Scheduling of When Clauses

34

Priority When Clauses

35

Function Prototypes

36

Declaring Timers

37

Examples

38

The timer_expires Event

38

Input/Output

39

I/O Object Types

40

Device Self-Documentation

42

Dimmer Switch

46

Fixed Timers

48

With a 10 MHz Input Clock

49

With Other Clock Speeds

50

Repeating Timers

51

Accuracy of Second Timers

52

Delay Functions

52

EEPROM Write Timer

53

Network Variables

55

Major Topics

56

When Updates Occur

59

Declaring Network Variables

59

Connecting Network Variables

61

Network Variable Events

63

The nv_update_occurs Event

63

Neuron C Reference

64

Preemption Mode

65

Variables

67

Tradeoffs

68

Polling Network Variables

68

Monitoring Network Variables

77

Authentication

78

How Authentication Works

79

Validating a Type Change

84

Processing a Type Change

85

Processing a Size Change

86

Rejecting a Type Change

87

Changeable-Type Example

87

// for details

93

} // bConversionOK

93

} // SetCurrent()

93

Configure Device Behavior

95

ONWORKS file transfer

97

Device Property Lists

101

Neuron C Reference Guide

102

Device Interface

104

Sharing of Configuration

104

Properties

104

Instantiation

107

Using Functional Blocks to

113

Implement a Device Interface

113

Overview

114

Technical

115

Resources

115

The Director Function

118

Scope Rules

121

Behavior

127

Application Messages

129

ONWORKS

130

Layers of Neuron Software

131

Constructing a Message

132

Message Tags

133

Message Codes

133

Management

133

Block Transfers of Data

136

Sending a Message

137

Receiving a Message

138

The msg_arrives Event

138

The msg_receive( ) Function

139

Application Message Examples

141

Lamp Program

141

Switch Program

141

Connecting Message Tags

142

Explicit Addressing

142

Service

143

Message Completion Events

143

Messages

145

Preemption Mode and Messages

146

Constructing a Response

149

Sending a Response

150

Receiving a Response

150

The resp_arrives Event

150

The resp_receive( ) Function

151

Format of a Response

151

Request/Response Examples

152

Application Buffers

154

Memory Management

155

Neuron C

155

Reference Guide

155

Additional Features

157

The Scheduler

158

Scheduler Reset Mechanism

158

Interrupts

159

Scheduler Example

160

Bypass Mode

161

The post_events( ) Function

161

Watchdog Timer

162

Additional Predefined Events

163

Wink Event

164

Interrupt Sources

165

I/O Interrupts

166

Timer/Counter Interrupts

166

Defining an Interrupt Task

167

)]',255min(,0max[ Zn =

171

Interrupt Latency

174

Debugging Interrupt Tasks

176

Sleep Mode

177

Putting the Device to Sleep

178

Forced Sleep

179

Error Handling

180

Resetting the Device

181

Restarting the Application

181

Disabling a Functional Block

182

Logging Application Errors

183

System Errors

183

Memory Use

186

RAM Use

186

EEPROM Use

186

Using Neuron Chip Memory

188

Chips with Off-Chip Memory

188

Memory Regions

189

Memory Areas

190

Default Memory Usage

192

Declarations)

193

Compiler Directives

196

When the Program Is Relinked

196

Use of Flash Memory

196

Reallocating On-Chip EEPROM

200

Address Table

200

Alias Table

201

Domain Table

202

Allocating Buffers

202

Application Buffer Size

203

Buffer Size

203

Network Buffer Size

204

Buffer Counts

204

Outgoing Application Buffers

206

Outgoing Network Buffers

206

Incoming Network Buffers

207

Incoming Application Buffers

207

(20, 21, 22, 24, 26, 30, 34)

208

(20, 21, 22, 24, 26, 30, 34

208

(20, 21, 22, 24, 26, 30)

209

Neuron Chip

211

Template File

212

Initialization Actions

214

Be Aware of Library Usage

215

Observe Declaration Order

216

Use Function Calls Liberally

218

Use C Operators Effectively

219

Using the Link Map

221

Stand-Alone Tools

224

Common Stand-Alone Tool Use

224

Common Syntax

224

Common Set of Basic Commands

226

Neuron C Compiler

227

Neuron Assembler

228

Neuron Linker

228

Neuron Exporter

229

Neuron Librarian

231

Neuron C Function Libraries

232

Definitions

234

Advantages of a Library

235

Disadvantages of a Library

235

Providing a Large RAM Space

246

Neuron C Language

249

Characteristics

250

Translation (J.3.1)

250

Environment (J.3.2)

251

Identifiers (J.3.3)

251

Characters (J.3.4)

252

Integers (J.3.5)

253

Floating Point (J.3.6)

254

Arrays and Pointers (J.3.7)

254

Standard)

254

Hints (J.3.8)

255

(J.3.9)

255

Qualifiers (J.3.10)

256

Library Functions (J.3.12)

257

248 Index

260

250 Index

262

ONWORKS messages, 9

263

252 Index

264

254 Index

266

Echelon Neuron C Instrukcja Użytkownika (267 strony)

Marka: Echelon | Kategoria: Oprogramowanie | Rozmiar: 1.22 MB |

Angielski

Spis treści

C Reference Guide

1

Welcome

3

Audience

3

Related Documentation

3

ONWORKS Platform

4

Table of Contents

7

Neuron C Overview

19

I/O objects

20

Neuron C Programmer’s

20

Predefined Events

21

Bypass Mode

22

Event Directory

23

Variable

31

Variables

32

network-var2

34

Compiler Directives

39

Pragma Directives

40

I/O Model Reference

43

NodeBuilder User’s Guide

44

Memory Management

44

LonWorks

48

ShortStack

48

User’s Guide

48

Other Directives

57

Execution Control

61

Network Configuration

62

Integer Math

63

Floating-Point Math

66

Strings

68

Utilities

68

Input/Output

70

Integer

72

Binary Arithmetic Operators

73

Unary Arithmetic Operators

74

Comparison Operators

75

Integer Conversions

76

Signed 32-Bit Performance

77

String

85

Floating-Point Performance

87

Translator

89

Function Directory

89

Control Network Specification

90

 xxx

96

Example

100

General

112

Example 1

116

Example 2

116

Function

140

Additional Features

140

Query Status

145

Timer Declarations

177

Timer Object

178

Property, and Message Tag

179

Declarations

179

Introduction

180

Neuron C Programmer’s Guide

186

Device Property Lists

186

(connection-info)

187

Message Tags

196

Related Data Structures

205

Built-In Variables, Objects

209

Symbols, and Semaphore

209

Built-In Variables

211

Control Network Protocol

217

Built-In Objects

218

Built-In Symbols

220

Built-In Semaphore

221

Syntax Summary

223

Syntax Conventions

224

Variable Declarations

225

Declaration Specifiers

225

Type Keywords

226

Storage Classes

227

Type Qualifiers

227

Enumeration Syntax

227

Structure/Union Syntax

228

Connection Information

229

Declarator Syntax

230

Abstract Declarators

231

Task Declarations

232

Function Declarations

232

Conditional Events

233

Complex Events

233

I/O Object Declarations

234

I/O Options

235

Property List Declarations

237

Statements

238

Expressions

239

Functions

242

Implementation Limits

243

Reserved Keywords

245

Reserved Words List

246

236 Index

256

238 Index

258

240 Index

260

242 Index

262

244 Index

264

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