Echelon LonTal Stack Manual de usuario descargar pdf (Pagina 11)

LonTalk Stack Developer’s Guide xi

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Developer's Guide 1
Table of Contents 3
Welcome 9
Audience 9
Related Documentation 9
ONWORKS device 13
Overview 14
ShortStack Developer’s Kit 16
Smart Transceiver 17
Communications Channel 17
Stack Devices 19
LonTalk Stack Architecture 22
Process 24
ONWORKS events 27
ONWORKS network 28
Getting Started with the 31
LonTalk Stack Overview 32
Hardware Requirements 32
Software Requirements 32
LonTalk Stack Files 33
ONWORKS network interface 34
ONWORKS channel 34
See Appendix G 35
Loading the Echelon Smart 37
Transceiver or Neuron Chip 37
Loading Overview 38
Designing the Serial I/O 43
Hardware Interface 43
Reliability 44
Serial Communication Lines 44
The RESET~ Pin 45
**5 PPSBPTPEAPMinBitRate 46
Interface 47
Host Latency Considerations 48
SCI Interface 48
Health Check 49
Echelon Smart 50
Transceiver 50
MIP Driver 51
Code Packet Layout 52
Type Code Values 54
Acknowledgment Rules 56
Detection 57
Supported MIP Command Set 57
Layer 2 / Layer 5 Modes 58
Serial MIP Driver Example 59
Serial MIP Driver API 59
Structures 59
Creating a Model File 63
Model File Overview 64
Choosing the Data Type 66
Defining a Functional Block 67
Declaring a Functional Block 68
Defining a Network Variable 68
Variable 70
Value Changes 74
Linearization 76
Declaring a Message Tag 79
Defining a Resource File 80
Anonymous Top-Level Types 83
Legacy Neuron C Constructs 83
How Authentication Works 85
Managing Memory 86
Address Table 86
Alias Table 87
Domain Table 87
Example Model files 88
Using the LonTalk Interface 93
Developer Utility 93
Specifying the Project File 94
Chip Configuration 95
Configuring the Buffers 97
Configuring the Application 98
ONMARK Standard Program 100
Specifying the Model File 101
Copied Files 106
FtxlDev.h 107
FtxlDev.c 107
Using Types 107
Bit Field Members 109
Floating Point Variables 110
Enumerations 110
Declarations 112
The Network Variable Table 115
Network Variable Attributes 115
The Message Tag Table 116
Developing a LonTalk Stack 117
Device Application 117
Using the LonTalk API 118
LonTalk Protocol Stack 119
Callbacks and Events 120
Restoring Non-Volatile Data 122
Writing Non-Volatile Data 123
ONWORKS 127
Host Processor 128
Application 128
Network 129
Variables 132
Validating a Type Change 133
Processing a Type Change 134
Processing a Size Change 135
Rejecting a Type Change 136
Messages 137
Handling Management Commands 138
Handling Reset Events 139
Querying the Error Log 139
Working with ECS Devices 139
Using Direct Memory Files 140
The DMF Memory Window 141
File Directory 142
Developing an IP-852 Router 145
LtLogicalChannel 146
LtIp852Router 146
. The application 147
. The unique ID of the 147
. The 32-bit 147
Porting a LonTalk Stack 149
Porting Overview 150
LonLink Driver 150
Service LED 151
Socket Interfaces 151
LonTalkStack Source Files 151
Selecting the Device Type 153
File System Requirements 154
Appendix A 155
LonTalk Interface Developer 155
Command Line Usage 155
Command Usage 156
Command Switches 157
Specifying Buffers 159
Appendix B 163
Appendix C 169
Functional Block Syntax 170
Keywords 170
Examples 172
Network Variable Syntax 176
The Network Variable Type 178
Information 179
Message Tag Syntax 189
Appendix D 191
LonTalk API 191
Introduction 192
Callback Handler Functions 192
LonTalk API Functions 192
Other LonTalk API Functions 193
ONWORKS device. The 194
Extended API Functions 195
Event Handler Functions 196
Functions 197
Managing Critical Sections 202
Managing Binary Semaphores 202
Managing System Timing 203
192 Appendix D: LonTalk API 204
Appendix E 205
Determining Memory Usage for 205
LonTalk Stack Applications 205
Memory Use for Code 206
Memory Use for Transactions 206
Memory Use for Buffers 207
Memory for Non-Volatile Data 208
CPNVlen 210
Appendix F 213
Downloading a LonTalk Stack 213
Application Over the Network 213
Application Download Utility 215
Appendix G 217
Example LonTalk Stack 217
Applications 217
Running the Examples 219
Application Details 220
Main Function 221
210 Appendix G: Appendix G 222
Example LonTalk 222
Application Task Function 223
Event Handler Function 224
Callback Handler Function 225
Model File 226
Appendix H 231
Error and Warning Messages 231
Error Messages 232
ONWORKS Bin folder 234
Warning Codes 238
Hint Codes 240
Appendix I 243
Glossary 243

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