Echelon I/O Model Reference for Smart Transceivers and Neu Instrukcja Użytkownika Pobierz pdf (Strona 5)

I/O Model Reference v

Table of Contents

Welcome.........................................................................................................iii

Audience ........................................................................................................iii

Related Documentation ................................................................................iii

Chapter 1. Introduction ..................................................................................... 1

Overview ......................................................................................................... 2

Summary of the Available I/O Models.......................................................... 2

Hardware Considerations............................................................................ 10

I/O Timing Issues ......................................................................................... 12

Scheduler-Related I/O Timing Information ......................................... 13

Firmware and Hardware-Related I/O Timing Information................ 14

Programming Considerations ..................................................................... 15

Declaring I/O Objects in Neuron C....................................................... 16

Overlaying I/O Objects .......................................................................... 17

Multiplexing I/O Models ....................................................................... 18

Performing I/O: Functions and Events ................................................ 18

General I/O Functions .................................................................... 18

I/O Events........................................................................................ 22

Using Functions or Events ............................................................. 25

I/O Functions for Timer/Counter Objects...................................... 26

I/O Measurements, Outputs, and Functions ....................................... 28

Direct, Serial, and Parallel I/O Models.......................................... 28

Timer/Counter I/O Models.............................................................. 28

Output Models................................................................................. 29

Chapter 2. Direct I/O Models........................................................................... 31

Bit Input/Output .......................................................................................... 32

Hardware Considerations ..................................................................... 32

Programming Considerations ............................................................... 34

Syntax .............................................................................................. 34

Usage ...............................................................................................35

Bit Input Example ..........................................................................35

Bit Output Example........................................................................ 35

Byte Input/Output........................................................................................ 35

Hardware Considerations ..................................................................... 35

Programming Considerations ............................................................... 37

Syntax .............................................................................................. 37

Usage ...............................................................................................37

Byte Input Example........................................................................ 37

Byte Output Example ..................................................................... 38

Leveldetect Input ......................................................................................... 38

Hardware Considerations ..................................................................... 38

Programming Considerations ............................................................... 39

Syntax .............................................................................................. 40

Usage ...............................................................................................40

Example ........................................................................................... 40

Nibble Input/Output .................................................................................... 40

Hardware Considerations ..................................................................... 40

Programming Considerations ............................................................... 42

Syntax .............................................................................................. 42

Usage ...............................................................................................43

Nibble Input Example .................................................................... 43

1 2 3 4 5 6 7 8 9 10 ... 208 209

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