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FTXL User’s Guide 3
the ANSI/CEA-709.1 (EN14908-1) Control Network Protocol as the “LonTalk
protocol”, although other interoperable implementations exist.
A LONWORKS Device with a Single Processor Chip
A basic LONWORKS device consists of four primary components:
1. An application processor that implements the application layer, or both
the application and presentation layers, of the LonTalk protocol
2. A protocol engine that implements layers 2 through 5 (or 2 through 7) of
the LonTalk protocol
3. A network transceiver that provides the physical interface for the
L
ONWORKS network communications media, and implements the physical
layer of the LonTalk protocol
4. Circuitry to implement the device I/O
These components can be combined in a physical device. For example, Echelon’s
Smart Transceiver product can be used as a single-chip solution that combines all
four components in a single chip. When used in this way, the Smart Transceiver
runs the device’s application, implements the LonTalk protocol, and interfaces
with the physical communications media through a transformer.
Figure 1 on
page
4 shows the seven-layer LonTalk protocol on a single Neuron Chip or Smart
Transceiver.
A L
ONWORKS device that uses a single processor chip is called a
Neuron-hosted
device, which means that the Neuron-based processor (the Smart Transceiver)
runs both the application and the LonTalk protocol.
- FTXL User’s Guide 1
- Welcome 3
- Audience 3
- Related Documentation 3
- ONWORKS System 4
- Table of Contents 7
- Introduction to FTXL 13
- Neuron-hosted 15
- ONWORKS Device 16
- Servers 17
- ShortStack Device 18
- ONWORKS 19
- ONWORKS network 19
- ONWORKS networking to a high 19
- FTXL Device 20
- Devices 20
- ONWORKS Devices 21
- Using Direct 22
- Memory Files 22
- Development Tools for FTXL 23
- FTXL Architecture 23
- The FTXL Developer’s Kit 25
- Getting 26
- Started with 26
- ONWORKS events 28
- ONWORKS network by 28
- ONWORKS network tool 28
- Getting Started with FTXL 29
- ONWORKS network connector 30
- Hardware Requirements 31
- Software Requirements 31
- DBC2C20 Software 32
- FTXL API Files 32
- 22 Getting Started with FTXL 34
- Model File Overview 36
- Choosing the Data Type 38
- Defining a Functional Block 39
- Declaring a Functional Block 40
- Defining a Network Variable 40
- Defining a Resource File 41
- Variable 42
- ONMARK Standard Program ID 43
- Using Direct Memory 45
- Value Changes 46
- static nciOffset 47
- Declaring a Message Tag 52
- NodeBuilder User’s Guide 54
- LonMaker User's Guide 54
- Anonymous Top-Level Types 55
- Legacy Neuron C Constructs 56
- How Authentication Works 57
- Address Table 59
- Alias Table 59
- Domain Table 60
- Example Model files 60
- Using Types 61
- SFPTnodeObject 62
- UFPTenergyMeter 62
- SNVT_address 65
- Using the LonTalk Interface 67
- Developer Utility 67
- Specifying the Project File 68
- Configuring the Buffers 70
- Configuring the Application 70
- ONMARK Standard Program 71
- Specifying the Model File 72
- Developer Files 73
- NodeBuilder Errors Guide 73
- Copied Files 74
- FtxlDev.h 75
- FtxlDev.c 75
- Bit Field Members 77
- Enumerations 78
- Floating Point Variables 78
- Declarations 80
- The Network Variable Table 83
- Network Variable Attributes 83
- The Message Tag Table 84
- FTXL User’s Guide 73 85
- Using the FTXL LonTalk API 86
- Host Application 87
- Application Framework 87
- Transceiver 87
- Callbacks and Events 88
- The FTXL Operating 89
- System Abstraction Layer 89
- Restoring Non-Volatile Data 90
- Writing Non-Volatile Data 91
- Initializing the FTXL Device 93
- MaxPacketRate 94
- InputBufferCount 94
- ONWORKS devices by 95
- FTXL Application 96
- FTXL LonTalk Protocol 96
- Stack and API 96
- LonEventPump() 98
- LonNvUpdateOccurred() 98
- Network 100
- Variables 100
- Validating a Type Change 101
- Processing a Type Change 102
- Processing a Size Change 103
- Rejecting a Type Change 104
- Messages 105
- Handling Management Commands 106
- Handling Reset Events 107
- Querying the Error Log 107
- Working with ECS Devices 107
- Using Direct Memory Files 108
- The DMF Memory Window 109
- LON_DMF_WINDOW_START 110
- LON_DMF_WINDOW_USAGE 110
- File Directory 111
- Working with the Nios II 113
- Development Environment 113
- Development Tools 114
- Setting up the Nios II IDE 115
- Example FTXL Applications 116
- II Operating System 118
- Running the 119
- Application 119
- Running the Application 120
- Debugging the Application 121
- FTXL Hardware Guide 122
- LonTalk Interface Developer 123
- Command Line Usage 123
- Overview 124
- Command Usage 124
- Command Switches 125
- Specifying Buffers 127
- Creating a Model File 131
- C-string-const 134
- Functional Block Syntax 138
- Keywords 138
- Examples 140
- Network Variable Syntax 144
- The Network Variable Type 146
- Information 147
- Authentication 149
- FTXL LonTalk API 159
- Introduction 160
- FTXL LonTalk API Functions 161
- Functions 161
- Extended API Functions 163
- FTXL Event Handler Functions 164
- Managing Critical Sections 170
- Managing Binary Semaphores 170
- Managing System Timing 171
- Operating System 172
- Specifying Task Priorities 173
- Maximum Number of Tasks 177
- StackTasks 178
- AppTasks 178
- Other µC/OS-II Settings 179
- Event Flags 181
- Semaphores 183
- Mailboxes 184
- Memory Management 185
- Miscellaneous 185
- Maximum Number of Event 186
- Control Blocks 186
- Task Management 187
- Time Management 188
- Timer Management 189
- Managing the Service Pin 191
- Managing Interrupts 191
- Determining Memory Usage for 193
- FTXL Applications 193
- Total Memory Use 194
- Memory Use for Transactions 195
- Memory Use for Buffers 195
- ONWORKS Resources 196
- Memory for Non-Volatile Data 197
- Node_SD_length 198
- NV_SD_length 198
- Memory Usage Examples 199
- Over the Network 203
- Application Download Utility 205
- Example Application Files 208
- Main Function 210
- Application Task Function 210
- Event Handler Function 211
- Model File 212
- Callback Handler Function 213
- Creating a Model 214
- Application-Specific 214
- Utility Functions 214
- Event Handler Functions 217
- Applications 227
- Using a Device 233
- Running the Simple Example 234
- Virtual Functional Block 238
- The Micrium Software License 239
- Error and Warning Messages 241
- Error Messages 242
- Neuron C Reference Guide 246
- [LID#50] 248
- Warning codes 249
- Hint codes 251
- Glossary 253
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