Embest Sbc6845 User manual

SBC6845

Single

Single Board

Board

Board Computer

Computer

User

User Manual

Manual

(

( WinCE6.0

WinCE6.0

WinCE6.0 ）

Version 1.2 – Jan. 1 8 , 2 01 3

Embest Technology

i

Copyright

Copyright Statement:

Statement:

SBC6845 and its related intellectual property are owned by Shenzhen Embest

Technology Co., Ltd.

Shenzhen Embest Technology has the copyright of this document and reserves

all rights. Any part of the document should not be modified, distributed or

duplicated in any approach and form with the written permission issued by

Embest Technology Co., Ltd.

Disclaimer:

Shenzhen Embest Technology does not take warranty of any kind, either

expressed or implied, as to the program source code, software and documents

in the CD/DVD-ROMs provided along with the products, and including, but not

limited to, warranties of fitness for a particular purpose; The entire risk as to the

quality or performance of the program is with the user of products; Should the

program prove defective, the user of products assumes the cost of all

necessary servicing, repair or correction.

Revision

Revision History:

History:

Version

Version Date

Date

Date Note

Note

1.0 2011-10-24 Original Version

1.1 2012- 01 - 16

Added MartrixKey driver and updated

display driver

1.2 2013-01-1 8 Revised the layout

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Table

Table of

of

of Contents

Contents

ContentsChapter

Chapter

Chapter 1

1

1 Product

Product

Product Overview

Overview

Overview .....................................................................................................

.....................................................................................................

..................................................................................................... 1

1

1.1 Introduction ....................................................................................................................... 1

1.2 Packing List ...................................................................................................................... 1

1.3 Product Features ............................................................................................................. 1

1.4 Components on SBC6845 .............................................................................................. 3

1.5 Hardware Dimensions ..................................................................................................... 4

1.6 BSP Package in CD-ROM .............................................................................................. 4

Chapter

Chapter 2

2

2 System

System

System Boot-up

Boot-up

Boot-up and

and

and Testing

Testing

Testing .................................................................................

.................................................................................

................................................................................. 8

8

2.1 System Boot-up ................................................................................................................ 8

2.1.1 Brief Introduction to Booting Process ................................................................ 8

2.1.2 Booting from NAND Flash ................................................................................... 9

2.2 System Burning .............................................................................................................. 10

2.2.1 Hardware Connections and Configurations ....................................................

11

2.2.2 Erasing NAND Flash .......................................................................................... 12

2.2.3 Writing Bootloader and System Image ............................................................ 14

2.3 Updating the System ..................................................................................................... 16

Chapter

Chapter 3

3

3 Generating

Generating

Generating WinCE

WinCE

WinCE System

System

System Image

Image

Image ......................................................................

......................................................................

...................................................................... 20

20

3.1 Creating WinCE Development Environment ............................................................. 20

3.2 Generating Image without Changes ........................................................................... 21

3.3 Making a Customized Image ....................................................................................... 21

Appendix

Appendix ......................................................................................................................................

......................................................................................................................................

...................................................................................................................................... 30

30

Technical

Technical Support

Support

Support and

and

and Warranty

Warranty

Warranty ............................................................................................

............................................................................................

............................................................................................ 34

34

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Chapter

Chapter 1

1

1 Product

Product

Product Overview

Overview

1.1

1.1 Introduction

Introduction

SBC6845 is an ARM embedded single board computer designed by Shenzhen Embest

Technology Co., Ltd. It is a small-sized board based on Atmel

’

s industrial microprocessor

AT91SAM9G45 and featured with 128MB DDR2 SDRAM, 256MB NAND Flash and 4MB

Data Flash, as well as abundant interfaces including 5 RS232 serial interfaces (COM2 is

RS485), a CAN interface, an Ethernet interface, a high-speed USB host interface, a

SD/MMC card interface and an audio output interface.

SBC6845 is designed to satisfy the different requirements of various fields such as

industrial control, intelligent instrumentation, data acquisition and analysis, medical

products and network equipments.

1.2

1.2 Packing

Packing

Packing List

List



A

SBC6845 board



A

serial cable



A

network cable



A

USB cable



A

12V power adapter



A

LCD touch-screen (optional item, available in 4.3-inch 480*272 or 7-inch

800*480 )



A

CD-ROM

1.3

1.3 Product

Product

Product Features

Features

Dimensions: 106.5mm x 94mm (6-layer PCB)

Operation temperature: -40 ~ + 85 ℃

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Operating Humidity: 0% ~ 90%

Power Supply: 12V/1.25A

Processor: Atmel AT91SAM9G45

On-Board Memories:

64MB*2 DDR2 SDRAM

256MB NAND Flash

4MB Data Flash

Audio/Video Output Interfaces:



A

3.5mm jack



A

2*20-pin DIP interface for LCD touch-screen



A

buzzer

Data Transfer Interfaces:

5 serial interfaces



A

CAN 2.0 interface (isolated)

2 USB 2.0 interfaces



A

10/100Mb Ethernet interface



A

SD card slot (hot plugging)

Pins for SPI , I2C , PWM , ADC , Keypad and GPIO

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1.4

1.4 Components

Components

Components on

on

on SBC6845

SBC6845

USB Host

Ethernet

Audio Out

Debug

Power

Touch

Buzzer

LCD

LED

Panel

Keypad

16 GPIO

SPI&IIC&PWM&ADC

DEBUG&COM0&COM1&COM2(RS485)&COM

DEBUG&COM0&COM1&COM2(RS485)&COM 3

3

Reset Key

CAN

RS485

User Key

Power

AT91SAM9G45

DDR

DDR 2

2

DDR

DDR 2

2

NandFlash

Figure

Figure 1-1

1-1

1-1 Components on SBC6845

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1.5

1.5 Hardware

Hardware

Hardware Dimensions

Dimensions

Figure

Figure 1-2

1-2

1-2 Hardware Dimensions

1.6

1.6 BSP

BSP

BSP Package

Package

Package in

in

in CD-ROM

CD-ROM

The CD-ROM provided along with SBC6845 contains a BSP package that helps

development of WinCE system. U sers can make a custom system running on SBC6845

platform by utilizing the package. The table shown below lists out the contents of the

BSP attached with the corresponding descriptions.

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U sed for display of VS2005 Catalog Items View

C ommon code of EBOOT

First-level user boot code

Screen display-relevant code

EBOOT code required when booting from SD

EBOOT code required when booting from DataFlash

Pin configuration file for LCD display

AT91SAM9G45 Chip-level IO driver

AT91SAM9G45 I2C interface driver

AT91SAM9G45 button pin driver

Extension 4X4 matrix keypad code

NAND Flash driver

SD card driver

AT91SAM9G45 serial interface driver

AT91SAM9G45 internal NIC MAC-layer driver

NDIS network interface driver

AT91SAM9G45 SPI pin driver

CAN bus driver

External RTC driver

WM9711chip driver

AD1981 audio chip drive

Video decoding driver

Touch-screen chip driver

AT91SAM9G45 USB device pin driver

AT91SAM9G45 USB host pin driver

Head file in BSP

KITL-relevant code

C ode used to generate WinCE 6.0 OAL.EXE

Code unsed to generate WinCE 6.0 OAL.EXE

Configuration files used to customize system

Display

GPIO

I2C

KeyPad

MatrixKey

NAND

NAND Flash

Flash

SDHC

Serial

EMACB

EmacbNDIS

SPI

CAN

RTC

WAVEDEVWM9711

WAVEDEVAD1981

VideoDecoder

TouchScreen

USBHSFN

USB_HOST

EBOOT

FirstBoot

SplashScreen

SDCard

SPIDataFlash

SBC6845

CATALOG

SRC

DRIVERS

BOOTLOADER

INC

KITL

MISC

OAL

OALEXE

OALLIB

FILES

Contents

Contents of

of

of BSP

BSP

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The table shown below lists the module driver options that are available in BSP when

viewing them in Visual Studio 2005, as well as their corresponding descriptions.

Modules

Modules Descriptions

Descriptions

Check the option if AD1981 external audio

codec is required

Check the option and SPI interface driver as

well if CAN bus is required.

By default, LCD driver is enabled to support

4.3-inch, 5.6-inch and 7-inch screen provided

by Embest. The adoption of an appropriate

display configuration will be determined

automatically according to states of jumpers

JP10 and JP11.

Check the option if Ethernet is required.

Check the option if GPIO is required.

Check the option if I2C is required.

Check the option if matrix keypad is required.

T he corresponding pins of U56 connector on

SBC6845 include PC16, PC17, PC18, PC19,

PC22, PC23, PC24 and PC25.

Check the option if SD card is required.

Check the option if USART serial interface

extended from AT91SAM9G45 on SBC6845 is

required.

Check the option if SPI is required.

Check the option if touch-screen is required.

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Modules

Modules Descriptions

Descriptions

Check the option if USB device is required.

Check the option if USB host is required.

Check the option if hardware decoding is

required.

To

generate FIRSTBOOT and EBOOT that boot

system from DataFlash, please check

DataFlash bootloader;

To

generate

FIRSTBOOT and EBOOT that boot system

from NAND Flash, please check NandFlash

bootloader.

Check the option if Hive registry is required.

Check the option if the spare space is required

to save data after WinCE is written in NAND

flash.

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Chapter

Chapter 2

2

2 System

System

System Boot-up

Boot-up

Boot-up and

and

Testing

2.1

2.1 System

System

System Boot-up

Boot-up

Currently SBC6845 WinCE 6.0 system can boot up from NAND Flash or serial interface.

This section will briefly introduce the boot-up principle of SBC6845 WinCE 6.0 system

and give you a detailed explanation of the booting process from NAND Flash.

2.1.2

2.1.2 Brief

Brief

Brief Introduction

Introduction

Introduction to

to

to Booting

Booting

Booting Process

Process

When SBC6845 is powered up, the ROMBOOT program embedded in the CPU

AT91SAM9G45S will be running automatically to check if there is a BootLoader in NAND

Flash. I f so, the BootLoader would be copied to SRAM of AT91SAM9G45S and executed.

I f not, the program will continue searching in DataFlash. I f eventually there is no any

BootLoader found in both flash memories, the program will shift to downloading mode

waiting for input from serial interface. The following figure shows the system booting

process.

Figure

Figure 2-1

2-1

2-1 System Booting Process

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2.1.3

2.1.3 Booting

Booting

Booting from

from

from NAND

NAND

NAND Flash

Flash

When system boots up from NAND Flash, the first-level boot code FIRSTBOOT at

0x00000000 in NAND Flash is copied to the SRAM of AT91SAM9G45 and executed.

FIRSTBOOT will initialize AT91SAM9G45, SDRAM and NAND Flash, and copy the

second-level boot code EBOOT at 0x00080000 in NAND Flash to the SDRAM on

SBC6845 to execute EBOOT, which by default will be proceeding to copy WinCE image

named NK.bin from the address 0x00080000 in NAND Flash to SDRAM and let

operating system take over. Furthermore, EBOOT is used to manage bottom-layer

hardware and configure settings related to data sharing with operating system.

The figure shown below is the storage structure of NAND Flash;

Figure

Figure 2-2

2-2

2-2 Storage of NAND Flash

The detailed booting process of WinCe is shown below;

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Figure

Figure 2-3

2-3

2-3 Detailed WinCE Booting Process

2.2

2.2 System

System

System Burning

Burning

By default, SBC6845 is installed with a Linux system, and therefore users have to burn

the NAND Flash on the board with a WinCE system by themselves . The following

contents will introduce how to burn the flash with a whole system step by step by using

the WinCE6.0 provided in the CD-ROM and a burning tool SAM-BA from Atmel, or using

VS2005 WinCE6.0 development environment or other TFTP server (e.g.

CEDownload.exe) to download a WinCE system image NK.bin to the board through

EBOOT and network. (The EBOOT generated by current BSP version can only support

downloading WinCE system image file NK.bin, not FIRSTBOOT and EBOOT.)

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1.1.1

1.1.1 Hardware

Hardware

Hardware Connections

Connections

Connections and

and

and Configurations

Configurations

1

1）Use a cross-over serial cable and a USB cable to connect SBC6845 to your

PC.

2

2）Configure HyperTerminal on your PC according to the settings shown in the

following figure;

Figure

Figure 1-1

1-1

1-1 Configure HyperTerminal

3

3）Connect the power adapter provided along with the product to SBC6845 and

press Reset button on the board;

Note:

Please ensure the jumpers JP8 and JP14 on SBC6845 are disconnected before you

power up the board in case there is any boot code in NAND Flash or Data Flash which

will lead to malfunction of the burning tool SAM-BA.

If a window pops up and prompts you to install USB device after you power up the board,

please select “ Install

Install

Install Automatically

Automatically

Automatically ” and click Next

Next to finish installation process.

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1.1.2

1.1.2 Erasing

Erasing

Erasing NAND

NAND

NAND Flash

Flash

1

1）Start SAM-BA to open the following window;

Figure

Figure 1-2

1-2

1-2 SAM-BA Initial Window

If the hardware is connected properly, \usb\ARM0

\usb\ARM0

\usb\ARM0 will appear in Select

Select

Select the

the

connection

connection text box. Now select at91sam9g45-ek

at91sam9g45-ek

at91sam9g45-ek in the Select

Select

Select your

your

board

board drop-down menu and click Connect

Connect

Connect .

Note:

Please short JP8 on SBC6845 before you click Connect

Connect

Connect .

2

2）Then the main window of SAM-BA will be shown as below. Click NandFlash

NandFlash

tab, and select Enable

Enable

Enable NandFlash

NandFlash

NandFlash in Scripts

Scripts

Scripts drop-down menu and then

click Execute

Execute

Execute ;

Figure

Figure 1-3

1-3

1-3 Enable NAND Flash

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The information box at the bottom of the window will show the details when

you operate.

3

3）Select Erase

Erase

Erase All

All

All in the Scripts

Scripts

Scripts drop-down menu and click Execute

Execute

Execute to erase

the contents of NAND Flash as the figure shown below;

Figure

Figure 1-4

1-4

1-4 Erase NAND Flash

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1.1.3

1.1.3 Writing

Writing

Writing Bootloader

Bootloader

Bootloader and

and

and System

System

System Image

Image

4

4）Select Send

Send

Send Boot

Boot

Boot File

File

File in the Scripts

Scripts

Scripts drop-down menu and click Execute

Execute

Execute to

open the window shown below;

Figure

Figure 1-5

1-5

1-5 Select FIRSTBOOT.nb0

Find FIRSTBOOT.nb0 on your PC and click Open

Open

Open . SAM-BA will burn the

NAND Flash starting from 0x00000000 to write FIRSTBOOT.nb0.

Note:

If you can not find FRSTBOOT.nb0 in the above window, please click File

File

File Type

Type

drop-down menu and select All

All

All Files

Files

Files (*.*)

(*.*)

(*.*) to display all the files.

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5

5）Type 0x80000

0x80000

0x80000 in Address

Address

Address text box within Download/Upload

Download/Upload

Download/Upload File

File

File block of

the window and click on the right of Send

Send

Send File

File

File Name

Name

Name text box to open

the following window;

Figure

Figure 1-6

1-6

1-6 Select EBOOT.nb0

Find EBOOT.nb0 on your PC and click Open

Open

Open , and then click Send

Send

Send File

File

File on

the right of Send

Send

Send File

File

File Name

Name

Name text box to write EBOOT.nb0 into NAND Flash.

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6

6）Type 0x200000

0x200000

0x200000 in Address

Address

Address text box within Download/Upload

Download/Upload

Download/Upload File

File

File block of

the window and click on the right of Send

Send

Send File

File

File Name

Name

Name text box to open

the following window;

Figure

Figure 1-7

1-7

1-7 Select NK.nb0

Find NK.nb0 on your PC and click Open, and then click Send

Send

Send File

File

File on the

right of Send

Send

Send File

File

File Name

Name

Name text box to write NK.nb0 into NAND Flash.

WinCE 6.0 image has been written to SBC6845.

You

can reboot the board and enter the

system now.

1.2

1.2 Updating

Updating

Updating the

the

the System

System

Updating system refers to implementation of replacing kernel file NK.nb0 only when

there is already a complete system in NAND Flash where FIRSTBOOT.nb0, EBOOT.nb0

and NK.nb0 exist.

This section will show you how to implement system kernel updating by using

CEDownload.exe software and network interface on SBC6845.

Note:

Although kernel file can be updated separately by using SAM-BA and USB interface,

there is possibility that the system might be unstable if writing it without erasing NAND

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Flash in advance. Therefore, this method is not recommended. While in the process of

downloading kernel by using CEDownload.exe, EBOOT will automatically erase the

data at the corresponding address.

1

1）Use a cross-over serial cable and a network cable to connect SBC6845 to

your PC;

2

2）Run CEDownload.exe

CEDownload.exe

CEDownload.exe under \ 03

03

03 WinCE

WinCE

WinCE 6.0

6.0

6.0 Kit\04

Kit\04

Kit\04 Tools\

Tools\

Tools\ in the CD-ROM

on your PC to open WinCE

WinCE

WinCE Download

Download

Download Server

Server

Server window as shown below ;

Figure

Figure 1-8

1-8

1-8 WinCE Download Server Window

Click on the right of File

File

File text box to find the file NK.bin

NK.bin

NK.bin on your PC.

Note:

The kernel file to be downloaded from WinCE Download Server is named NK.bin, but

not NK.nb0. The file will be eventually converted to NK.nb0 by EBOOT and written to

NAND Flash.

Embest SBC6845 User manual

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