Arcom VIPER series Manuale utente

VIPER

Intel PXA255 XScale RISC based

PC/104 Single Board Computer

Technical Manual

Product Information

Full information about other Arcom products is available by contacting our Website at: www.arcom.com

Useful Contact Information

Customer Support US Customer Support Europe

Tel: 913 549 1000

Fax: 913 549 1002

E-mail: [email protected]

Tel: +44 (0)1223 412 428

Fax: +44 (0)1223 403 409

E-mail:[email protected]

Sales offices Sales hotlines

United States:

Arcom

7500 West 161st Street

Overland Park

KS 66085, USA

Tel: 913 549 1000

Fax: 913 549 1002

E-mail:

[email protected]

United Kingdom:

Arcom

Clifton Road

Cambridge

CB1 7EA, UK

Tel: 01223 411 200

Fax: 01223 410 457

E-mail:

[email protected]

Belgium:

Groen Nummer:

Tel: 0800 7 3192

Fax: 0800 7 3191

France:

Numero Vert:

Tel: 0800 90 84 06

Fax: 0800 90 84 12

Germany:

Kostenlose Infoline:

Tel: 08001 824 511

Fax: 08001 824 512

Netherlands:

Gratis Nummer:

Tel: 0800 0221136

Fax: 0800 0221148

Italy:

Numero Verde:

Tel: 0800 790841

Fax: 0800 780841

Whilst Arcom’s sales team is always available to assist you in making your decision, the final

choice of boards or systems is solely and wholly the responsibility of the buyer. Arcom’s entire

liability in respect of the boards or systems is as set out in Arcom’s standard terms and

conditions of sale.

If you intend to write your own low level software, you can start with the source code supplied

by Arcom. This is example code only to illustrate use on Arcom’s products. It has not been

commercially tested. No warranty is made in respect of this code and Arcom shall incur no

liability whatsoever or howsoever arising from any use made of the code.

Arcom Control Systems is a subsidiary of Spectris plc

All trademarks recognized.

Arcom Control Systems Ltd

operate a company-wide quality

management system which has

been certified by the British

Standards Institution (BSI) as

compliant with ISO9001:2000

2192-12132-000-000

Contents

Contents......................................................................................................................................2

Revision History .........................................................................................................................3

Preface.........................................................................................................................................4

Definitions .................................................................................................................................4

Disclaimer .................................................................................................................................4

Anti-Static Handling...................................................................................................................4

Packaging .................................................................................................................................4

Electromagnetic Compatibility (EMC) .......................................................................................4

Acknowledgements...................................................................................................................4

Technical Support.....................................................................................................................5

Introduction.................................................................................................................................6

Features....................................................................................................................................7

VIPER-UPS (uninterruptible power supply)...........................................................................7

VIPER-ICE (industrial compact enclosure)............................................................................8

VIPER-FPIF1 (flat panel interface)........................................................................................8

Using the VIPER..........................................................................................................................9

Connecting a Host PC to the VIPER Console (COM1).........................................................9

Using the CompactFlash™ Socket......................................................................................10

Using the Serial Interfaces (RS232)....................................................................................10

Using the Audio Features....................................................................................................10

Using the PC/104 Expansion Bus .......................................................................................11

Using the USB Ports............................................................................................................11

Using the Ethernet Interface................................................................................................11

Jumpers and Connectors ........................................................................................................12

LK1 – Reset.........................................................................................................................13

LK2 – User Configurable Jumper 1.....................................................................................13

LK3 – User Configuration Jumper 2....................................................................................13

LK4, LK5, LK6 and LK7 – RS485/422 configuration ...........................................................13

Connectors..............................................................................................................................14

Bootloader.................................................................................................................................15

RedBoot..................................................................................................................................15

Detailed Hardware Description................................................................................................16

Processor................................................................................................................................16

Memory...................................................................................................................................16

Synchronous DRAM Interface.................................................................................................16

Bootloader EPROM.................................................................................................................17

Flash Memory/Silicon Disk......................................................................................................17

Static RAM..............................................................................................................................17

Memory Map...........................................................................................................................17

Graphics Controller.................................................................................................................18

Backlight Enable..................................................................................................................20

LCD Vcc Enable..................................................................................................................20

Backlight Brightness Control ...............................................................................................20

Interrupt Assignments.............................................................................................................20

Internal Interrupts ................................................................................................................20

External Interrupts...............................................................................................................20

PC104 Interrupts .................................................................................................................20

CompactFlash.........................................................................................................................21

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Real Time Clock......................................................................................................................21

Ethernet Controller..................................................................................................................22

Sound......................................................................................................................................22

Watchdog Timer......................................................................................................................22

User Configuration Jumpers ...................................................................................................22

USB Interface..........................................................................................................................22

General Purpose I/O...............................................................................................................23

PC/104 Interface.....................................................................................................................24

Serial Ports .............................................................................................................................24

COM1..................................................................................................................................24

COM2..................................................................................................................................24

COM3..................................................................................................................................24

COM4..................................................................................................................................24

COM5..................................................................................................................................24

RS422/485 Interfaces .............................................................................................................25

RS422.....................................................................................................................................25

RS485.....................................................................................................................................25

Power Supply..........................................................................................................................27

Power Management................................................................................................................27

Processor ............................................................................................................................27

UARTS ................................................................................................................................27

CompactFlash .....................................................................................................................28

Ethernet...............................................................................................................................28

USB.....................................................................................................................................28

Audio ...................................................................................................................................28

Status LED’s ...........................................................................................................................28

RESET Switch.........................................................................................................................28

Appendix A – Connector details .............................................................................................29

PL1 – 10/100M Ethernet .....................................................................................................29

PL3 - LCD Ports ..................................................................................................................29

PL4 – COMS Ports..............................................................................................................30

PL6 - Audio.........................................................................................................................30

PL7 - USB ...........................................................................................................................30

PL8 – CompactFlash...........................................................................................................31

PL9 - GPIO.........................................................................................................................31

PL10 – JTAG.......................................................................................................................32

PL10 & PL11 - PC/104 Connector.......................................................................................32

PL14 – Power 4-way Molex Mating Half – Molex 22-01-3047............................................33

Appendix B – Specification .....................................................................................................34

Appendix C - Mechanical Diagram..........................................................................................35

Appendix D - Reference Information ......................................................................................36

USB Information..................................................................................................................36

Intel......................................................................................................................................36

Revision History

Manual PCB Date Comments

Issue A

Issue B

Issue C

V1 Issue 3

V1 Issue 4

26th June 2003

8th July 2003

14th August 2003

First full release of Manual

Minor Editorial Changes

Content update

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2192-12132-000-000

Preface

Definitions

Arcom is the trading name for Arcom Control Systems Inc and Arcom Control Systems Ltd.

Disclaimer

The information in this manual has been carefully checked and is believed to be accurate.

Arcom assumes no responsibility for any infringements of patents or other rights of third parties,

which may result from its use.

Arcom assumes no responsibility for any inaccuracies that may be contained in this document.

Arcom makes no commitment to update or keep current the information contained in this

manual.

Arcom reserves the right to make improvements to this document and /or product at any time

and without notice.

Anti-Static Handling

This board contains CMOS devices that could be damaged in the event of static electricity

discharged through them. At all times, please observe anti-static precautions when handling the

board. This includes storing the board in appropriate anti-static packaging and wearing a wrist

strap when handling the board.

Packaging

Please ensure that should a board need to be returned to Arcom, it is adequately packed,

preferably in the original packing material.

Electromagnetic Compatibility (EMC)

The VIPER is classified as a component with regard to the European Community EMC

regulations and it is the users responsibility to ensure that systems using the board are

compliant with the appropriate EMC standards.

Acknowledgements

ARM and StrongARM are registered trademarks of ARM Ltd.

Intel and XScale are trademarks or register trademarks of Intel Corporation or its subsidiaries in

the United States and other countries.

CompactFlash is the registered trademark of The CompactFlash Association.

Linux is a registered trademark of Linus Torvalds.

RedBoot and Red HatTM is a registered trademark of Red Hat Inc.

All other trademarks acknowledged.

Page 4

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Technical Support

Arcom has a team of technical support engineers who will be able to provide assistance if you

have any problems with this product:

[email protected] Tel +1 913 549 1000

Europe [email protected] Tel +44(0) 1223 412 428

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2192-12132-000-000

Introduction

This manual describes the operation and use of the VIPER single board computer. It is

designed to be a reference and user manual and includes information on using all aspects of

the board.

This manual should have been supplied as part of a VIPER Development Kit and you should

have read the Quickstart Manual.

The VIPER is an ultra low power PC/104 compatible single board computer based on the Intel

400MHz PXA255 XScale processor. The PXA255 is an implementation of the Intel XScale

micro architecture combined with a comprehensive set of integrated peripherals including, a flat

panel graphics controller, DMA controller, interrupt controller, real time clock and multiple serial

ports. The VIPER board offers a wide range of features making it ideal for power sensitive

embedded communications and multimedia applications.

The board is available in the following standard variants:

VIPER-400-M64-F16 Intel XscaleTM PXA255 400MHz CPU, 64MByte DRAM, 16MByte Flash

VIPER-400-M16-F8 Intel XscaleTM PXA255 400MHz CPU, 16MByte DRAM, 8MByte Flash

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Features

• CPU:

 Intel XScaleTM PXA255 400MHz RISC processor

• Cache:

 32k data cache, 32k instruction cache

• System Memory:

 Up to 64MByte un-buffered 3.3V SDRAM

• Silicon Disk:

 Up to 16MByte Intel Strata Flash (with Flash access LED)

 1MByte Flash EPROM for RedBoot (with Flash access LED)

 256Kbyte SRAM (with external battery backup)

• Video:

 TFT/STN (3.3V or 5V – factory fit) flat panel graphics controller, Up to 800X600,

Backlight Control.

• Audio:

 National Semiconductors LM4548 CODEC

 Line IN, Line OUT, Microphone and 200mW per channel amplified output

• Serial Ports:

 5x 16C550 compatible high speed UART’s

 2x channels with 128byte Tx/Rx FIFO

 4 x RS232 and 1 x RS422/485 Interfaces

• USB Host Interface:

 Two Universal Serial Bus (USB) interfaces

 USB 1.1 Compliant

• Network support:

 SMSC SMC91C111 10/100-BASETX Ethernet controller

• Real Time Clock (RTC):

 Battery backed RTC (external battery)

• Watchdog:

 Adjustable timeout of 271µs – 17s

• General Purpose I/O (GPIO):

 8 x 5V tolerant Inputs

 8 x 3.3V Outputs (5V tolerant)

• 2x User Jumpers:

• Expansion:

 PC/104 expansion bus - 8/16 bit ISA bus compatible interface

• JTAG Port:

 Download data to Flash memory

 Debug and connection to In-Circuit Emulator (ICE)

• Size:

 PC104 Compatible footprint 3.8” x 3.6” (96mm x 91mm)

The VIPER SBC is supported by the following products:

VIPER-UPS (uninterruptible power supply)

The VIPER-UPS serves as a 5V DC power supply and battery back up system for the VIPER

SBC. The UPS accepts between 10 – 36 VDC (10-25VAC) input and generates the +5V supply

for the VIPER. In addition to this, it includes an intelligent battery charger/switch capable of

Page 7

2192-12132-000-000

using either the onboard 500mAHr NiMH battery or an external sealed lead acid rechargeable

battery.

VIPER-ICE (industrial compact enclosure)

The VIPER-ICE is a simple low cost aluminum enclosure which provides easy connection to all

on board features. The enclosure includes the VIPER-UPS and optionally a color Q-VGA

(320x240) flat panel display and analog touch screen.

VIPER-FPIF1 (flat panel interface)

The VIPER-FPIF1 is a simple board to enable easy connection between the VIPER SBC and

an LCD flat panel.

Page 8

2192-12132-000-000

Getting Started

The Development Kit contains a Quickstart Manual to enable users to set-up and start using the

board. Please read this manual and follow the steps defining the set-up of the board. Once you

have completed this task you will have a working VIPER system and can start adding further

peripherals enabling development to begin.

The section below has been designed as a guide to the set-up and use of some of the features

of the VIPER. If you would like more detailed information on any aspect of the board refer to the

“Detailed Hardware Description” section of this manual.

Using the VIPER

The VIPER uses the RedBoot bootloader (Red Hat Embedded Debug and Bootstrap firmware)

to provide initial boot strapping for the board. The bootloader has many features including:

Downloading and execution of embedded operating systems via a serial port (X or Y modem),

or Ethernet (support for BOOTP and TFTP).

Interactive command line interface allows management of Flash images, downloads and

general configurations.

RedBoot only has limited support for the VIPER hardware (Ethernet, Serial, Flash, SDRAM), to

use any other hardware function an operating system and appropriate drivers must be running.

Connecting a Host PC to the VIPER Console (COM1)

RedBoot does not support the flat panel controller, therefore by default the console is directed

to COM1. To view this you will need a null modem cable, which is supplied in the Development

Kit and a computer with a suitable terminal emulator. Connect one end of the null modem cable

to the VIPER’s COM1 and the other to your computer. Set the terminal emulator as follows:

Baud Rate: 115200

Data Bits: 8

Parity: None

Stop Bits: 1

Flow Control: None

Plug the power supply into the VIPER. You should now see the following in your terminal

emulator window:

Ethernet eth0: MAC address 00:80:66:10:00:01

IP: 10.2.28.4/255.255.0.0, Gateway: 10.2.1.1

Default server: 10.2.28.2, DNS server IP: 0.0.0.0

RedBoot(tm) bootstrap and debug environment [ROM]

Non-certified release, version @CURRENT@ for VIPER - built 11:40:34, Apr 16 2003

Platform: VIPER (XScale PXA255)

RAM: 0x00000000-0x04000000, 0x00013ca8-0x03fdd000 available

FLASH: 0x60000000 - 0x61000000, 128 blocks of 0x00020000 bytes each.

RedBoot>

Page 9

2192-12132-000-000

Required null modem cable pin out:

9 Way D-Sub (Female) 9 Way D-Sub (Female)

2 3

3 2

5 5

Using the CompactFlash™ Socket

The VIPER is fitted with a Type II CompactFlash socket mounted on the topside of the board.

This socket is connected to Slot 0 of the PXA255 PC Card interface. The socket supports both

Type I and Type II CompactFlash cards, for both memory and IO. The VIPER supports hot

swap changeover of the cards and notification of card insertion.

The CompactFlash card can only be inserted into the socket one way. The correct orientation is

for the top of the card i.e. the normal printed side to be face down to the PCB.

RedBoot does not support the CompactFlash interface, so a suitable operating system such as

Arcom Embedded Linux (AEL) port or Windows CE .NET, will need to be installed to support

this function.

Using the Serial Interfaces (RS232)

The five serial port interfaces on the VIPER are fully 16550 compatible. Connection to the serial

ports is made via a 40-way boxed header. The pin assignment of these headers has been

arranged to enable a 9-way IDC D-Sub plug to be connected directly to the cable. The D-Sub

connector will be compatible with the standard 9-way connector on a desktop computer. A

suitable cable is provided as part of the Development Kit.

Using the Audio Features

There are four audio interfaces supported on the VIPER, Amp out, Line out, Line in and

Microphone. The Line In, Line Out and Amp interfaces support stereo signals and the

Microphone provides a Mono input. The amplified output is suitable for direct drive of any 4-8Ω

load with a maximum power output of 2mW per channel. Connections are routed to a 12-way

header PL6. The relevant signals for each interface are shown in the table below:

Function Pin No. Signal

9 MICMicrophone 7 Audio ground reference.

1 Line input Left

5 Line input Right

Line IN

3 Audio ground reference

2 Line output Left

6 Line output Right

Line OUT

4 Audio ground reference

Amp OUT 8 Amp output Left

12 Amp output Right

10 Audio ground reference

Page 10

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