Z-World Fox LP3500 User manual

Fox (LP3500)
C-Programmable Single-Board Computer
User’s Manual
019–0111 • 041029–E

Fox (LP3500)
Z-World, Inc.
2900 Spafford Street
Davis, California 95616-6800
USA
Telephone: [phone]
Fax: [phone]
www.zworld.com
Fox (LP3500) User’s Manual
Part Number 019-0111 • 041029–E • Printed in U.S.A.
©2002–2004 Z-World Inc. • All rights reserved.
Z-World reserves the right to make changes and
improvements to its products without providing notice.
Trademarks
Rabbit and Rabbit 3000 are registered trademarks of Rabbit Semiconductor.
Dynamic C is a registered trademark of Z-World Inc.

User’s Manual
TABLE OF CONTENTS
Chapter 1. Introduction 1
1.1 LP3500 Description..............................................................................................................................1
1.2 LP3500 Features ...................................................................................................................................2
1.3 Optional Add-Ons.................................................................................................................................3
1.4 Development and Evaluation Tools......................................................................................................4
1.4.1 Tool Kit.........................................................................................................................................4
1.4.2 Software........................................................................................................................................5
1.5 CE Compliance.....................................................................................................................................6
1.5.1 Design Guidelines.........................................................................................................................7
1.5.2 Interfacing the LP3500 to Other Devices .....................................................................................7
Chapter 2. Getting Started 9
2.1 LP3500 Connections.............................................................................................................................9
2.2 Remove Battery Tab...........................................................................................................................13
2.3 Installing Dynamic C..........................................................................................................................14
2.4 Starting Dynamic C ............................................................................................................................14
2.5 PONG.C..............................................................................................................................................15
2.6 Where Do I Go From Here? ...............................................................................................................15
Chapter 3. Subsystems 17
3.1 LP3500 Pinouts...................................................................................................................................18
3.1.1 Headers and Screw Terminals.....................................................................................................18
3.2 Power Modes ......................................................................................................................................19
3.2.1 Setting the Power-Save Mode.....................................................................................................20
3.2.2 Operating in the Power-Save Mode............................................................................................21
3.2.3 Resuming Normal-Power or Low-Power Operation ..................................................................21
3.3 Digital I/O...........................................................................................................................................22
3.3.1 Digital Inputs...............................................................................................................................22
3.3.2 Digital Outputs............................................................................................................................23
3.4 Serial Communication ........................................................................................................................25
3.4.1 RS-232 ........................................................................................................................................26
3.4.2 RS-485 ........................................................................................................................................26
3.4.3 Serial Interface Port ....................................................................................................................28
3.4.4 Programming Port.......................................................................................................................28
3.5 Display Interface.................................................................................................................................29
3.6 A/D Converter Inputs (LP3500 only).................................................................................................30
3.7 PWM Outputs .....................................................................................................................................32
3.8 Relay Output Circuit (LP3500 only) ..................................................................................................33
3.9 Memory...............................................................................................................................................34
3.9.1 SRAM .........................................................................................................................................34
3.9.2 Flash Memory.............................................................................................................................34
Chapter 4. Software 35
4.1 Upgrading Dynamic C........................................................................................................................36
4.1.1 Patches and Bug Fixes ................................................................................................................36
4.1.2 Upgrades .....................................................................................................................................36

Fox (LP3500)
4.2 Programming Cable............................................................................................................................37
4.2.1 Switching Between Program Mode and Run Mode...................................................................37
4.2.2 Detailed Instructions: Changing from Program Mode to Run Mode.........................................37
4.2.3 Detailed Instructions: Changing from Run Mode to Program Mode......................................... 37
4.3 Sample Programs................................................................................................................................38
4.3.1 Power Modes..............................................................................................................................38
4.3.2 Digital I/O...................................................................................................................................38
4.3.3 Serial Communication................................................................................................................ 39
4.3.4 A/D Converter Inputs.................................................................................................................39
4.3.5 PWM Outputs.............................................................................................................................40
4.3.6 Relay Output...............................................................................................................................40
4.3.7 Vcc Monitoring ..........................................................................................................................40
4.3.8 LP3500 Calibration ....................................................................................................................40
4.3.9 LCD/Keypad Module Sample Programs....................................................................................41
4.4 LP3500 Libraries................................................................................................................................42
4.5 LP3500 Function APIs....................................................................................................................... 43
4.5.1 LP3500 Power Modes ................................................................................................................43
4.5.2 Board Initialization.....................................................................................................................47
4.5.3 Digital I/O...................................................................................................................................48
4.5.4 Serial Communication................................................................................................................ 50
4.5.5 A/D Converter Inputs.................................................................................................................52
4.5.6 Vcc Monitoring (LP3500 only)..................................................................................................64
4.5.7 PWM Outputs.............................................................................................................................65
4.6 Relay Output (LP3500 only)..............................................................................................................66
Appendix A. LP3500 Specifications 67
A.1 Electrical and Mechanical Characteristics ........................................................................................68
A.1.1 Exclusion Zone..........................................................................................................................71
A.1.2 Headers......................................................................................................................................72
A.2 Conformal Coating............................................................................................................................73
A.3 Jumper Configurations ...................................................................................................................... 74
A.4 Use of Rabbit 3000 Parallel Ports .....................................................................................................77
Appendix B. Prototyping Board 81
B.1 Mechanical Dimensions and Layout.................................................................................................82
B.2 Using the Prototyping Board.............................................................................................................83
B.2.1 Interface to LP3500 ................................................................................................................... 83
B.2.2 Demonstration Board.................................................................................................................84
B.2.3 Prototyping Area........................................................................................................................84
Appendix C. LCD/Keypad Module 85
C.1 Specifications.....................................................................................................................................85
C.2 Contrast Adjustment..........................................................................................................................87
C.3 Keypad Labeling................................................................................................................................88
C.4 Header Pinouts...................................................................................................................................89
C.4.1 I/O Address Assignments ..........................................................................................................89
C.5 Bezel-Mount Installation................................................................................................................... 90
C.6 Connect the LCD/Keypad Module to Your LP3500.........................................................................92
C.7 LCD/Keypad Module Function APIs................................................................................................93
C.7.1 LEDs..........................................................................................................................................93
C.7.2 LCD Display..............................................................................................................................94
C.7.3 Keypad..................................................................................................................................... 110
C.8 Sample Programs.............................................................................................................................113
Appendix D. Plastic Enclosure 115
D.1 Assembly Instructions.....................................................................................................................116
D.2 Dimensions......................................................................................................................................118

User’s Manual
Appendix E. Power Management 119
E.1 External Power Supply.....................................................................................................................119
E.2 Batteries and External Battery Connections.....................................................................................121
E.2.1 Replacing the Backup Battery..................................................................................................122
E.2.2 Power to VRAM Switch...........................................................................................................122
E.2.3 Reset Generator ........................................................................................................................123
E.3 Chip Select Circuit ...........................................................................................................................123
Appendix F. Programming Cable 125
Appendix G. Running a Sample Program 129
Notice to Users 131
Index 133
Schematics 137

Fox (LP3500)

User’s Manual 1
1. INTRODUCTION
The LP3500 is a low-power single-board computer with built-in
analog and digital I/O. Although the LP3500 was designed spe-
cifically for low-power applications and data logging, it has a
host of features that make it attractive for other applications as
well. Low power is often required in portable equipment operat-
ing from batteries or from solar power. The LP3500 is ideal for
monitoring equipment or processes that are far-removed from a
power supply, remote telemetry (RTUs), pipeline control and
monitoring, well-head monitoring; and use on mobile equipment
such as refrigeration trucks. An optional plastic enclosure and an
LCD/keypad module are available.
The Tool Kit has the essentials that you need to design your own
low-power microprocessor-based system, and includes a com-
plete Dynamic C software development system.
1.1 LP3500 Description
The LP3500 is a low-power single-board computer that incorporates the powerful and
low-EMI Rabbit 3000 microprocessor, flash memory, static RAM, digital I/O ports, A/D
converter inputs, PWM outputs, RS-232/RS-485 serial ports, and both parallel and serial
interfaces that allow other devices to be connected to the LP3500.
All aspects of the LP3500 are designed for low power consumption and operates at a vari-
ety of power levels, including a power-save mode, to fit customer-specified conditions at
any given time. The CPU runs at a nominal speed of 7.4 MHz, and operates at 2.8 V to
conserve power. The LP3500 consumes less than 20 mA when fully operational, and less
than 100 µA when in the power-save mode. A replaceable coin-type battery will allow the
LP3500 to operate in sleep mode for over 3 years. The LP3500 is normally powered from
an external battery or power supply. When the unit is in the power-save mode, it can be
awakened by an internal timer, an RS-232 signal, or via polling of an external input. The
LP3500 can be switched from the power-save mode to full operation and back under pro-
gram control. In addition, various sections of circuitry (such as the RS-232 ports) can be
switched off under program control to further conserve power when not in use.

2Fox (LP3500)
1.2 LP3500 Features
•Rabbit 3000®microprocessor operating at up to 7.4 MHz.
•512K/128K static RAM and 512K/256K flash memory options.
•26 digital I/O: 16 protected digital inputs and 10 high-current digital outputs provide
sinking and sourcing outputs.
•8 single-ended or 4 differential analog channels with Vcc monitoring option: 11-bit single-
ended or 12-bit differential channels.
•3 PWM outputs.
•Six serial ports
1 RS-485
3 RS-232 (one 5-wire and one 3-wire or three 3-wire), jumper option for logic-level
outputs; Serial Port E has a “listen” and “wake-up” capability
1 logic-level serial interface for optional add-ons
1 asynchronous clocked serial port dedicated for programming
•Battery-backed real-time clock.
•Watchdog supervisor.
Two LP3500 models are available. Their standard features are summarized in Table 1.
Appendix A provides detailed specifications.
The LP3500 can be mounted in two ways. It can be mounted to a panel or on a plastic-
enclosure base, which allows I/O connections to be made using traditional connectors with
0.1" spacing. The LP3500 can also be inverted and mounted directly to mating connectors
on a motherboard of the customer's design. The first approach is appropriate where I/O
connections go directly to devices and switches. The second approach is appropriate
where additional circuitry is incorporated on the motherboard.
Table 1. LP3500 Models
Feature LP3500 LP3510
Microprocessor Rabbit 3000 running at 7.4 MHz
Static RAM 512K 128K
Flash Memory 512K 256K
A/D Converter Inputs
(ranges from 0–1 V DC to 0–20 V DC, 4 channels
may be individually configured for 4–20 mA) Yes No
C-form Bistable Relay Yes No

User’s Manual 3
1.3 Optional Add-Ons
•Plastic enclosure (can be wall-mounted or panel-mounted), which consists of a base
and a cover for either the LP3500 by itself or an assembly made up of the LP3500 and
the LP3500 Prototyping Board. The base is also available separately.
•The Prototyping Board included with the Tool Kit is a convenient means of interfacing
to the LP3500 via the screw-terminal headers on the Prototyping Board. The Prototyp-
ing Board is also available for separate purchase.
•4M and 8M serial flash expansion cards.
•LCD/keypad module with 7-key keypad and seven LEDs.
Further details on the Prototyping Board, the plastic enclosure, and the LCD/keypad mod-
ule are provided in Appendix B, Appendix C, and Appendix D.
Visit Z-World’s Web site for up-to-date information about additional add-ons and features
as they become available. The Web site also has the latest revision of this user’s manual
and schematics.

4Fox (LP3500)
1.4 Development and Evaluation Tools
1.4.1 Tool Kit
A Tool Kit contains the hardware essentials you will need to develop applications with the
LP3500 single-board computer. The items in the Tool Kit and their use are as follows.
•LP3500 User’s Manual with schematics (this document).
•Dynamic C CD-ROM, with complete product documentation on disk.
•Programming cable, used to connect your PC serial port to the LP3500.
•AC adapter, used to power the LP3500 via the Prototyping Board
. The AC adapter is
supplied with Tool Kits sold in the North American market. If you are using another
power supply, it must provide 3 to 30 V DC
.
•Prototyping Board with pushbutton switches, LEDs, and screw-terminal headers. The
Prototyping Board can be hooked up to the LP3500 to demonstrate the I/O capabilities
of the LP3500 and to provide a prototyping area for you to develop your own add-on
circuits. The screw-terminal headers extend the LP3500’s headers for development, and
can also be used in a production environment.
•Plastic enclosure with four screws.
•Four stand-offs with mounting screws.
•Screwdriver.
•Rabbit 3000 Processor Easy Reference poster.
•Registration card.
Figure 1. Tool KitLP3500 Tool KitTool Kit
PROG
DIAG
Programming
Cable
(101-0276)
Screwdriver
User's Manual
S and-Offs
and Screws
AC Adap er
(North American
kits only)
Pro o yping Board
Fox (LP3500)
C-Programmable Single-Board Computer
Users Manual
0190111  020815A
Plas ic Enclosure
GND RxE TxE GND RxC TxC GND RxB TxB GND + 85  GND +K OUT9 OUT8 OUT7 OUT6 OUT5 OUT OUT3 OUT2 OUT1 OUT0
GND VIN GND VBAT EXT GND PWM2 PWM1 PWM0 GND AIN7 AIN6 AIN5 AIN AIN3 AIN2 AIN1 AIN0 GND
IN15 IN1 IN13 IN12 IN11 IN10 IN09 IN08 GND IN07 IN06 IN05 IN0 IN03 IN02 IN01 IN00 GND
J2
J21 J22 J23
J11J12
J1J13
J 1 J 2 J J 3 J
GND
VIN
S1 S2 S3 S
RN1
DS DS3 DS2 DS1
D1
PWR
J5
R1
VIN
GND
VIN
GND
VIN
GND
VIN
GND
GND
VIN
J3
3 V VBAT