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Digi JACKRABBIT User Manual

Digi JACKRABBIT User Manual (94 pages)

C-Programmable Single-Board Computer

Brand: Digi | Category: Single board computers | Size: 1 MB

Table of Contents

Table of Contents
3
Chapter 1. Introduction

5
Chapter 2. Getting Started

11
- Development Kit Contents
  11
- Development Hardware Connections
  12
- Installing Dynamic C
  16
- Run a Sample Program
  17
  - Troubleshooting
    17
- Where Do I Go from here
  18
  - Real-Time Clock
    18
  - Technical Support
    18
Chapter 3. Subsystems

19
- Jackrabbit Pinouts
  20
  - Headers
    20
- Digital Inputs/Outputs
  21
  - Digital Inputs
    21
  - Digital Outputs
    22
  - Bidirectional I/O
    24
- A/D Converter
  25
- D/A Converters
  27
  - Da1
    28
  - Da0
    30
- Serial Communication
  32
  - Rs-232
    32
  - Rs-485
    32
  - Programming Port
    34
- Programming Cable
  36
  - Changing between Program Mode and Run Mode
    36
- Memory
  37
  - Sram
    37
  - Flash EPROM
    37
- Other Hardware
  38
  - External Interrupts
    38
  - Clock Doubler
    38
  - Spectrum Spreader
    39
Chapter 4. Software Reference

41
- An Overview of Dynamic C
  41
- Library Functions
  42
- Sample Programs
  43
- Cooperative Multitasking
  52
  - Advantages of Cooperative Multitasking
    54
- Jackrabbit Function Calls
  55
  - I/O Drivers
    55
  - Serial Communication Drivers
    59
- Upgrading Dynamic C
  60
  - Patches and Bug Fixes
    60
  - Add-On Modules
    60
Appendix A. Specifications

61
- Electrical and Mechanical Specifications
  62
  - Exclusion Zone
    64
  - Headers
    65
- Jumper Configurations
  66
- Conformal Coating
  68
- Use of Rabbit 2000 Parallel Ports
  69
Appendix B. Prototyping Board

73
- Prototyping Board Overview
  74
  - Prototyping Board Features
    75
- Mechanical Dimensions and Layout
  76
- Using the Prototyping Board
  77
  - Demonstration Board
    78
  - Prototyping Board
    80
Appendix C. Power Management

83
- Power Supplies
  83
- Batteries and External Battery Connections
  86
  - Battery Backup Circuit
    87
  - Power to VRAM Switch
    88
  - Reset Generator
    88
- Chip Select Circuit
  89
Index

91
Schematics

93

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