Инструкция по эксплуатации


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E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

AEC-6611

Compact Embedded Controller

Intel

®

Atom™ N270 1.6GHz Processor

Dual LAN, 2 USB2.0, 4 COM, 1 VGA

AEC-6611 Manual 2nd Ed.

January 2011

E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

Copyright Notice

This document is copyrighted, 2011. All rights are reserved. The original manufacturer reserves the right to make improvements to the products described in this manual at any time without notice.

No part of this manual may be reproduced, copied, translated, or transmitted in any form or by any means without the prior written permission of the original manufacturer. Information provided in this manual is intended to be accurate and reliable. However, the original manufacturer assumes no responsibility for its use, or for any infringements upon the rights of third parties that may result from its use.

The material in this document is for product information only and is subject to change without notice. While reasonable efforts have been made in the preparation of this document to assure its accuracy, AAEON assumes no liabilities resulting from errors or omissions in this document, or from the use of the information contained herein.

AAEON reserves the right to make changes in the product design without notice to its users.

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Acknowledgments

All other products’ name or trademarks are properties of their respective owners.

• Award is a trademark of Award Software International, Inc.

• CompactFlash

is a trademark of the Compact Flash

Association.

Windows

®

is a registered trademark of Microsoft

Corp.

• Intel

®

, Atom™ are trademarks of Intel Corporation.

• PC/AT, PS/2, and VGA are trademarks of International

Business Machines Corporation.

All other product names or trademarks are properties of their respective owners.

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Packing List

Before you begin operating your PC, please make sure that the following materials are enclosed: z

1 AEC-6611 Embedded Controller z

2 Wallmount Brackets z

1 Screw Package z

1 CD-ROM for manual (in PDF format) and drivers

If any of these items should be missing or damaged, please contact your distributor or sales representative immediately.

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Safety & Warranty

1. Read these safety instructions carefully.

2. Keep this user's manual for later reference.

3. Disconnect this equipment from any AC outlet before cleaning. Do not use liquid or spray detergents for cleaning. Use a damp cloth.

4. For pluggable equipment, the power outlet must be installed near the equipment and must be easily accessible.

5. Keep this equipment away from humidity.

6. Put this equipment on a firm surface during installation. Dropping it or letting it fall could cause damage.

7. The openings on the enclosure are for air convection. Protect the equipment from overheating. DO NOT COVER THE OPENINGS.

8. Make sure the voltage of the power source is correct before connecting the equipment to the power outlet.

9. Position the power cord so that people cannot step on it. Do not place anything over the power cord.

10. All cautions and warnings on the equipment should be noted.

11. If the equipment is not used for a long time, disconnect it from the power source to avoid damage by transient over-voltage.

12. Never pour any liquid into an opening. This could cause fire or electrical shock.

13. Never open the equipment. For safety reasons, only qualified service personnel should open the equipment.

14. If any of the following situations arises, get the equipment checked by service personnel: a. The power cord or plug is damaged. b. Liquid has penetrated into the equipment. c. The equipment has been exposed to moisture.

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d. The equipment does not work well, or you cannot get it to work according to the user’s manual. e. The equipment has been dropped and damaged. f. The equipment has obvious signs of breakage.

15. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT

WHERE THE STORAGE TEMPERATURE IS BELOW -20°C

(-4°F) OR ABOVE 55°C (131°F). IT MAY DAMAGE THE

EQUIPMENT.

FCC

This device complies with Part 15 FCC Rules.

Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received including interference that may cause undesired operation.

Caution:

There is a danger of explosion if the battery is incorrectly replaced.

Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions and your local government’s recycling or disposal directives.

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部件名称

Below Table for China RoHS Requirements

产品中有毒有害物质或元素名称及含量

AAEON Boxer/ Industrial System

有毒有害物质或元素

六价铬 多溴联苯 多溴二苯醚

(Pb) (Hg) (Cd) (Cr(VI)) (PBB) (PBDE)

印刷电路板

及其电子组件

外部信号

连接器及线材

外壳

中央处理器

与内存

硬盘

电源

×

×

×

×

×

×

O:表示该有毒有害物质在该部件所有均质材料中的含量均在

SJ/T 11363-2006 标准规定的限量要求以下。

X:表示该有毒有害物质至少在该部件的某一均质材料中的含量超出

SJ/T 11363-2006 标准规定的限量要求。

备注:

一、此产品所标示之环保使用期限,系指在一般正常使用状况下。

二、上述部件物质中央处理器、内存、硬盘、电源为选购品。

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Chapter 1 General Information

A E C - 6 6 1 1

1.1 Introduction................................................................ 1-2

1.2 Features .................................................................... 1-3

1.3 Specifications ............................................................ 1-4

Chapter 2 Hardware Installation

2.1 Dimension and I/O of AEC-6611............................... 2-2

2.2 Location of Connectors and Jumpers of the Main Board

......................................................................................... 2-3

2.3 List of Jumpers .......................................................... 2-5

2.4 List of Connectors ..................................................... 2-6

2.5 Hard Disk Drive Installation....................................... 2-8

2.6 Memory Card Installation .......................................... 2-13

2.7 Wallmount Kit Installation .......................................... 2-16

2.8 DIN Rail Kit Installation ............................................. 2-17

Chapter 3 Award BIOS Setup

3.1 System Test and Initialization. .................................. 3-2

3.2 Award BIOS Setup .................................................... 3-3

Chapter 4 Driver Installation

4.1 Installation ................................................................. 4-3

Appendix A Programming The Watchdog Timer

A.1 Programming ........................................................A-2

A.2 ITE8781 Watchdog Timer Initial Program ............A-6

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Chapter

1

General

Information

Chapter 1 General Information

1- 1

E m b e d d e d C o n t r o l l e r

1.1 Introduction

A E C - 6 6 1 1

The newest Boxer series AEC-6611 has been introduced by

AAEON and it utilizes Intel

®

Atom™ processor. In this era of information explosion, the advertising of consumer products will not be confined to the family television, but will also spread to high-traffic public areas, like department stores, the bus, transportation station, the supermarket etc. The advertising marketing industry will resort to every conceivable means to transmit product information to consumers. System integrators will need a multifunction device to satisfy commercial needs for such public advertising.

The AEC-6611 is designed for indoor environments due to the following reasons; first, the AEC-6611 offers low power consumption system that while operating in ambient temperatures ranging from -20° to 55°C. The MTBF (Mean Time Before Failure) rating states that the AEC-6611 can operate up to 70,000 hours at

40°C ambient temperature, which indicates its careful and long-life design.

The AEC-6611 is a standalone high performance controller designed for long-life operation and with high reliability. It can replace traditional methods and become the mainstream controller for the multimedia entertainment market.

Chapter 1 General Information

1- 2

z z z z z z z z

E m b e d d e d C o n t r o l l e r

1.2 Features

A E C - 6 6 1 1

Intel

®

Atom

TM

N270 1.6 GHz Processor

COM x 4 (Optional COM x 8)

Gigabit Ethernet x 2

DC 12V Power Input

ATX Power Function

SATA Interface Support

Wallmount and DIN Rail Design for Industrial Applications

Windows

®

CE, Windows

®

XP Embedded, Windows

®

7 and

Linux Fedora Support

Chapter 1 General Information

1- 3

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1.3 Specifications

System

z z z z z z z

CPU

Memory

Intel

®

Atom

TM

N270 1.6GHz Processor

DDR2 400/533 SODIMM x 1, Max.

2GB

VGA

Ethernet

Expansion

Solid Storage

D-sub 15P VGA Connector

10/100/1000Base-TX Ethernet RJ-45 connector x 2

Hard Disk Drive 2.5” SATA HDD x 1

Mini-PCI x 1, Mini Card x 1

Internal Type II CompactFlash

TM slot z z z z

Mechanical and Environmental

z Construction Aluminum Chassis z

Disk

Serial Port x 1

RS-232/422/485 x 1, RS-232 x 3 (x 8

USB optional)

USB 2.0 x 2

Watchdog Timer Generates a time-out system reset

Power Supply DC power input 12V z z

Mounting Wallmount and DIN rail (optional) z Net Weight

(197 mm x 57.2 mm x 110 mm)

4.75 lb (2.16 kg)

Chapter 1 General Information

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z z z z z

Gross Weight

Operating

Temperature

Storage

Temperature

Operating

Humidity

Vibration z z

Shock

EMC

8.36 lb (3.8 kg)

5°F ~ 122°F (-20°C ~ 50°C) (CFD)

5°F ~ 131°F (-20°C ~ 55°C) (HDD)

-4°F ~ 158°F (-20°C ~ 70°C)

5 ~ 90% @ 40°C, non-condensing

5G rms/ 5~500Hz/ random operation –CFD

1G rms/ 5~500Hz/ random operation –HDD

50G peak acceleration (11msec. duration) –CFD

20G peak acceleration (11msec. duration) –HDD

CE/FCC Class A

Chapter 1 General Information

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A E C - 6 6 1 1 E m b e d d e d C o n t r o l l e r

Chapter

2

Hardware

Installation

Chapter 2 Hardware Installation

2-1

E m b e d d e d C o n t r o l l e r

2.1 Dimension and I/O of AEC-6611

A E C - 6 6 1 1

SYS

HDD

DC IN

12V

USB

LAN1 LAN2

COM2 COM3

COM1

COM4

VGA

COM5

COM6

COM7

COM8

Connectors of AEC-6611

USB

LAN1 LAN2

SYS

HDD

DC IN

12V

COM2 COM3

COM1

COM4

VGA

COM5

COM6

COM7

COM8

CFD

Chapter 2 Hardware Installation

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2.2 Connectors and Jumpers of The Main Board

Component Side

CN1

CN4

CN3

CN2

JP3 JP2 BA

JP5

CN16

CN18

CN25

CN30

CN28

CN31

CN27

CN20

JP4

CN22

CN23

CN19

CN24

Chapter 2 Hardware Installation

2 - 3

E m b e d d e d C o n t r o l l e r

Solder Side

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DIMM1

Chapter 2 Hardware Installation

2 - 4

CFD1

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2.3 List of Jumpers

A E C - 6 6 1 1

The board has a number of jumpers that allow you to configure your system to suit your application.

The table below shows the function of each of the board's jumpers:

Label Function

JP1 COM2 RI/+5/+12V Selection

JP2

JP3

Clear CMOS Front Panel

AT/ATX Power Mode Selection

JP4

JP5

LVDS Inverter Voltage Selection

LVDS Operating Voltage Selection

Chapter 2 Hardware Installation

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2.4 List of Connectors

A E C - 6 6 1 1

The board has a number of connectors that allow you to configure your system to suit your application. The table below shows the function of each board's connectors:

Label

CN1

CN2

CN3

Function

External +5V Standby Power Input and

PS_ON#

Digital I/O Connector

Parallel Port Connector

CN5 COM Port 2 Connector

CN6 COM Port 3 Connector

CN7 2 nd

LVDS Connector for 18/24-bit LCD

CN8 Onboard BIOS Programming I/F (Optional)

CN9 COM Port 4 Connector

CN11 USB Port 1 Connector

CN12 1 st

LVDS Connector for 18-bit LCD

CN13 USB Port 2 Connector

CN14 USB Port 3 Connector

CN15 USB Port 4 Connector

CN16 2 nd

LVDS Inverter Connector

CN18 1 st

LVDS Inverter Connector

Chapter 2 Hardware Installation

2 - 6

E m b e d d e d C o n t r o l l e r

CN25

CN26

CN27

CN28

CN30

CN31

CN19

CN20

CN21

CN22

CN23

CN24

A E C - 6 6 1 1

Keyboard / Mouse Connector

SATA 1 Connector

+12V Power Input Connector

RJ-45 Ethernet#1 Connector

RJ-45 Ethernet#2 Connector

USB Port 5&6 Connector

+5V Standby Power Output w/ PS_ON# &

SMBus

Audio In/Out/CD-in and MIC Connector

+5V Output Connector for 2.5” SATA Hard Disk

System FAN Connector

CRT Display Connector

COM Port 1 Connector

CFD1 Compact Flash Disk

DDR2 SODIMM Slot DIMM1

Chapter 2 Hardware Installation

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E m b e d d e d C o n t r o l l e r

2.5 Hard Disk Drive Installation

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Step 1: Unfasten the screws on the front and rear panel

SYS

HDD

DC IN

12V

USB

LAN1 LAN2

COM2 COM3

COM1

COM4

VGA

COM5

COM6

COM7

COM8

Step 2: Unfasten the four screws on the bottom lid

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Step 3: Fasten the four HDD screws and cover with the four black damper

Black Damper

Black Damper

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E m b e d d e d C o n t r o l l e r

Step 4: Assembly the HDD chassis

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Step 5: Assembly the damper bracket

Chapter 2 Hardware Installation

2 - 10

E m b e d d e d C o n t r o l l e r

Step 6: Connect the HDD cable

A E C - 6 6 1 1

Step 7: Fasten the four screws on the bottom lid of AEC-6611

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Step 8: Fasten the two screws on the front and rear panel

SYS

HDD

DC IN

12V

USB

LAN1 LAN2

COM2 COM3

COM1

COM4

VGA

COM5

COM6

COM7

COM8

Chapter 2 Hardware Installation

2 - 12

E m b e d d e d C o n t r o l l e r

2.6 Memory Card Installation

A E C - 6 6 1 1

Step 1: Unfasten the screws on the front and rear panel

SYS

HDD

DC IN

12V

USB

LAN1 LAN2

COM2 COM3

COM1

COM4

VGA

COM5

COM6

COM7

COM8

Step 2: Unfasten the four screws on the bottom lid

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Step 3: Insert the RAM at 30-degree angle to the memory slot and press

Step 4: Close the bottom case of AEC-6611 and faten the four screws of the bottom lid

Chapter 2 Hardware Installation

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E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

Step 5: Fasten the screws on the front and rear panel

SYS

HDD

DC IN

12V

USB

LAN1 LAN2

COM2 COM3

COM1

COM4

VGA

COM5

COM6

COM7

COM8

Chapter 2 Hardware Installation

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2.7 Wallmount Kit Installation

Get the brackets ready and fasten appropriate four screws on each bracket.

After fastening the two brackets on the bottom lid of AEC-6611, the wallmount kit installation has been finished.

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2.8 DIN Rail Kit Installation

Get the DIN Rail kit ready and fasten the three screws to mount the DIN Rail kit to the bottom lid of AEC-6611

Chapter 2 Hardware Installation

2 - 17

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Chapter

3

Award

BIOS Setup

Chapter 3 Award BIOS Setup 3-1

E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

3.1 System Test and Initialization

These routines test and initialize board hardware. If the routines encounter an error during the tests, you will either hear a few short beeps or see an error message on the screen. There are two kinds of errors: fatal and non-fatal. The system can usually continue the boot up sequence with non-fatal errors. Non-fatal error messages usually appear on the screen along with the following instructions:

Press <F1> to RESUME

Write down the message and press the F1 key to continue the boot up sequence.

System configuration verification

These routines check the current system configuration against the values stored in the CMOS memory. If they do not match, the program outputs an error message. You will then need to run the

BIOS setup program to set the configuration information in memory.

There are three situations in which you will need to change the

CMOS settings:

1. You are starting your system for the first time

2. You have changed the hardware attached to your system

3. The CMOS memory has lost power and the configuration information has been erased.

The AEC-6611 CMOS memory has an integral lithium battery backup for data retention. However, you will need to replace the complete unit when it finally runs down.

Chapter 3 Award BIOS Setup 3-2

E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

Awards BIOS ROM has a built-in Setup program that allows users to modify the basic system configuration. This type of information is stored in battery-backed CMOS RAM so that it retains the Setup information when the power is turned off.

Entering Setup

Power on the computer and press <Del> immediately. This will allow you to enter Setup.

Standard CMOS Features

Use this menu for basic system configuration. (Date, time, IDE, etc.)

Advanced BIOS Features

Use this menu to set the advanced features available on your system.

Advanced Chipset Features

Use this menu to change the values in the chipset registers and optimize your system performance.

Integrated Peripherals

Use this menu to specify your settings for integrated peripherals.

(keyboard, mouse etc.)

Power Management Setup

Use this menu to specify your settings for power management.

(HDD power down, power on by ring, KB wake up, etc.)

Chapter 3 Award BIOS Setup 3-3

E m b e d d e d C o n t r o l l e r

PnP/PCI Configurations

A E C - 6 6 1 1

This entry appears if your system supports PnP/PCI.

PC Health Status

Use this menu to set PC Health Status.

Frequency/Voltage Control

Use this menu to specify your settings for auto detect DIMM/PCI clock and spread spectrum.

Load Optimized Defaults

Use this menu to load the BIOS default values that are factory settings for optimal performance system operations. While AWARD has designated the custom BIOS to maximize performance, the factory has the right to change these defaults to meet their needs.

Set Password

Use this menu to set Supervisor Password.

Save and Exit Setup

Save CMOS value changes to CMOS and exit setup.

Exit Without Saving

Abandon all CMOS value changes and exit setup.

You can refer to the "AAEON BIOS Item Description.pdf" file in

the CD for the meaning of each setting in this chapter.

Chapter 3 Award BIOS Setup 3-4

E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

Chapter

4

Driver

Installation

Chapter 4 Driver Installation

4 - 1

E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

The AEC-6611 comes with a CD-ROM that contains all drivers and utilities that meet your needs.

Follow the sequence below to install the drivers:

Step 1 – Install Chipset Driver

Step 2 – Install VGA Driver

Step 3 – Install LAN Driver

Step 4 – Install Mini PCI RS-232 Module Driver

Chapter 4 Driver Installation

4 - 2

E m b e d d e d C o n t r o l l e r

4.1 Installation:

A E C - 6 6 1 1

Insert the AEC-6611 CD-ROM into the CD-ROM Drive. And install the drivers from Step 1 to Step 4 in order.

Step 1 – Install INF Driver

1. Click on the STEP1-CHIPSET folder and double click on the infinst911_autol.exe

2. Follow the instructions that the window shows

3. The system will help you install the driver automatically

Step 2 – Install VGA Driver

1. Click on the STEP2-VGA folder and select the OS folder your system is

2. Double click on the .exe in the OS folder

3. Follow the instructions that the window shows

4. The system will help you install the driver automatically

Step 3 – Install LAN Driver

1. Click on the STEP3-LAN folder and select the OS folder your system is

2. Double click on the PROWin32.exe file in the OS folder

3. Follow the instructions that the window shows

4. The system will help you install the driver automatically

Step 4 – Install Mini PCI RS-232 Module Driver

Installing Mini PCI RS-232 driver in Windows XP and Windows

7

Chapter 4 Driver Installation

4 - 3

E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

Once the card is installed and the computer is restarted, Windows will detect the board and attempt to load the drivers for it.

1. Windows will detect a “PCI Serial Port”. Select “Install from a list or specific location (Advanced)” as the shown of figure 1 and then click “Next.”

Figure 1

2. Select “Search for the best driver in these locations.”

Next select “Include this location in this search:” and then click “Browse” to open the “ CD-ROM/Driver/

STEP4-MINI PCI RS-232 Module” file as shown in figure 2 . Click “Next.”

Chapter 4 Driver Installation

4 - 4

Figure 2

E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

3. Windows has found an updated driver for this device as shown in figure 3 and then click “Next.”

Figure 3

4. The “Completing the Found New Hardware Wizard” dialog. Appears as shown in figure 3, and then click

“Finish.”

5. Repeat the above process for the second, third, fourth, and fifth AAEON PCI Communications Port.

6. Please re-start your Windows.

Finalizing Mini PCI RS-232 module settings

Check your Windows System/Device Manager to confirm the proper installations of Mini PCI RS-232 drivers:

Multifunction adapters

AAEON OX16PCI954 PCI UARTs

AAEON OX16PCI95x PCI bridge

Ports(COM & LPT)

Chapter 4 Driver Installation

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E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

4-port Mini PCI module will show 4 AAEON PCI

Communications Port and 2-port Mini PCI module will show 2

AAEON PCI Communications Port as the figure 4 shows 4 ports Mini PCI module

Figure 4

Mini-PCI RS-232 module set up in Linux

If the module is a 4-port Mini PCI module, you don’t need to proceed with the set up process, you can use it directly. For 2-port

Mini PCI module, please use the following sequences to set up the module.

cat /proc/tty6/driver/serial command to check your

COM port settings.

As the screen showing, use 16550A to be UART prefix is the system COM ports, and we can see this system with

2 COM ports, leave it as ttyS0, ttyS1.

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E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

2. Make lspci -v command to find OXmPCI952 IRQ and I/O address

As the screen showing, we can find “Serial controller:

Oxford Semiconductor Ltd:” this alphabetic string and then we will see the next line with IRQ number and the next with I/O address

3. Open the file: /etc/rc.local and add two commands

setserial /dev/ttySX1 port IOADDR1 irq Y uart 16950 baud_base 115200 setserial /dev/ttySX2 port IOADDR2 irq Y uart 16950 baud_base 115200

In above command line X1, X2 are the COM port numbers and it must be beyond beforehand. In this case,

X1 is 4, X2 is 5, and Y is IRQ number. Finally, we can set the I/O address individually.

setserial /dev/ttyS4 port 0xe000 irq 9 uart 16950 baud_base 115200 setserial /dev/ttyS5 port 0xe100 irq 9 uart 16950 baud_base 115200

4. Please re-start your computer. display is shown as below. If yes, this setup has been done successfully.

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Chapter 4 Driver Installation

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A E C - 6 6 1 1 E m b e d d e d C o n t r o l l e r

Appendix

A

Programming the

Watchdog Timer

Appendix A Programming the Watchdog Timer A-1

E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

A.1 Programming

AEC-6611 utilizes ITE 8781 chipset as its watchdog timer controller. Below are the procedures to complete its configuration and the AAEON initial watchdog timer program is also attached based on which you can develop customized program to fit your application.

Configuring Sequence Description

After the hardware reset or power-on reset, the ITE 8781 enters the normal mode with all logical devices disabled except

KBC. The initial state (enable bit ) of this logical device (KBC) is determined by the state of pin 121 (DTR1#) at the falling edge of the system reset during power-on reset.

Appendix A Programming the Watchdog Timer A-2

E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

There are three steps to complete the configuration setup: (1) Enter the MB PnP Mode; (2) Modify the data of configuration registers; (3)

Exit the MB PnP Mode. Undesired result may occur if the MB PnP

Mode is not exited normally.

(1) Enter the MB PnP Mode

To enter the MB PnP Mode, four special I/O write operations are to be performed during Wait for Key state. To ensure the initial state of the key-check logic, it is necessary to perform four write opera-tions to the Special Address port (2EH). Two different enter keys are provided to select configuration ports (2Eh/2Fh) of the next step.

(2) Modify the Data of the Registers

All configuration registers can be accessed after entering the MB

PnP Mode. Before accessing a selected register, the content of

Index 07h must be changed to the LDN to which the register belongs, except some Global registers.

(3) Exit the MB PnP Mode

Set bit 1 of the configure control register (Index=02h) to 1 to exit the

MB PnP Mode.

Appendix A Programming the Watchdog Timer A-3

E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

WatchDog Timer Configuration Registers

Configure Control (Index=02h)

This register is write only. Its values are not sticky; that is to say, a hardware reset will automatically clear the bits, and does not require the software to clear them.

Watch Dog Timer 1, 2, 3 Control Register (Index=71h,81h,91h

Default=00h)

Appendix A Programming the Watchdog Timer A-4

E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

Watch Dog Timer 1, 2, 3 Configuration Register (Index=72h,

82h, 92h Default=001s0000b)

Watch Dog Timer 1,2,3 Time-Out Value (LSB) Register

(Index=73h,83h,93h, Default=38h)

Watch Dog Timer 1,2,3 Time-Out Value (MSB) Register

(Index=74h,84h,94h Default=00h)

Appendix A Programming the Watchdog Timer A-5

E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

A.2 ITE8781 Watchdog Timer Initial Program

.MODEL SMALL

.CODE

Main:

CALL Enter_Configuration_mode

CALL Check_Chip mov cl, 7 call Set_Logic_Device

;time setting mov cl, 10 ; 10 Sec dec al

Watch_Dog_Setting:

;Timer setting mov al, cl mov cl, 73h call Superio_Set_Reg

;Clear by keyboard or mouse interrupt mov al, 0f0h mov cl, 71h call Superio_Set_Reg

;unit is second. mov al, 0C0H mov cl, 72h

Appendix A Programming the Watchdog Timer A-6

E m b e d d e d C o n t r o l l e r

call Superio_Set_Reg

; game port enable mov cl, 9 call Set_Logic_Device

Initial_OK:

CALL Exit_Configuration_mode

MOV AH,4Ch

INT 21h

Enter_Configuration_Mode PROC NEAR

MOV SI,WORD PTR CS:[Offset Cfg_Port]

MOV DX,02Eh

MOV CX,04h

Init_1:

MOV AL,BYTE PTR CS:[SI]

OUT DX,AL

INC SI

LOOP Init_1

RET

Enter_Configuration_Mode ENDP

Exit_Configuration_Mode PROC NEAR

MOV AX,0202h

A E C - 6 6 1 1

Appendix A Programming the Watchdog Timer A-7

E m b e d d e d C o n t r o l l e r

CALL Write_Configuration_Data

RET

Exit_Configuration_Mode ENDP

Check_Chip PROC NEAR

MOV AL,20h

CALL Read_Configuration_Data

CMP AL,87h

JNE Not_Initial

MOV AL,21h

CALL Read_Configuration_Data

CMP AL,81h

JNE Not_Initial

Need_Initial:

STC

RET

Not_Initial:

CLC

RET

Check_Chip ENDP

Read_Configuration_Data PROC NEAR

MOV DX,WORD PTR CS:[Cfg_Port+04h]

Appendix A Programming the Watchdog Timer A-8

A E C - 6 6 1 1

E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

OUT DX,AL

MOV DX,WORD PTR CS:[Cfg_Port+06h]

IN AL,DX

RET

Read_Configuration_Data ENDP

Write_Configuration_Data PROC NEAR

MOV DX,WORD PTR CS:[Cfg_Port+04h]

OUT DX,AL

XCHG AL,AH

MOV DX,WORD PTR CS:[Cfg_Port+06h]

OUT DX,AL

RET

Write_Configuration_Data ENDP

Superio_Set_Reg proc near push ax

MOV DX,WORD PTR CS:[Cfg_Port+04h] mov al,cl out dx,al pop ax inc dx out dx,al ret

Superio_Set_Reg endp.Set_Logic_Device proc near

Appendix A Programming the Watchdog Timer A-9

E m b e d d e d C o n t r o l l e r A E C - 6 6 1 1

Set_Logic_Device proc near push ax push cx xchg al,cl mov cl,07h call Superio_Set_Reg pop cx pop ax ret

Set_Logic_Device endp

;Select 02Eh->Index Port, 02Fh->Data Port

Cfg_Port DB 087h,001h,055h,055h

DW 02Eh,02Fh

END Main

Note: Interrupt level mapping

0Fh-Dh: not valid

0Ch: IRQ12

.

.

03h: IRQ3

02h: not valid

01h: IRQ1

00h: no interrupt selected

Appendix A Programming the Watchdog Timer A-10

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