Echelon Neuron C Manual de usuario descargar pdf (Pagina 6)

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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

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Echelon Neuron C Manual de usuario Pagina 6

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