Artila M-508 Manuel utilisateur

Overview

M-508 is a Linux ready Single Board Computer featuring four

serial ports, 10/100 Mbps Ethernet, USB port and SD socket for

flash disk expansion. The pre-install Linux OS and GNU tool

chain make M-508 ready for your application development.

Features

1. ARM920T ARM Thumb Processor with 200MIPS at

180MHz, Memory Management Unit

2. 16-KByte Data Cache and 16-KByte Instruction Cache

3. 64MB SDRAM, 32MB Flash on board

4. 512KB non-volatile FRAM (M-508T only)

5. One 10/100 Mbps Ethernet

6. Two USB 2.0 full speed (12 Mbps) Host Ports

7. Multimedia Card Interface for SD memory card

8. Four RS-232/485 ports software selectable

9. Port 4 also supports RS-422

10. 32 General Purpose DIO

11. +5VDC power input

12. Pre-installed Standard Linux 2.6.14 OS

13. GNU tool chain available in Artila CD

Packing List

M-508 is shipped with following items

1. M-508

2. CB-F10M9-20 10-pin header to DB9 male cable x4

3. Artila CD includes Tool Chain, Installation guide and

example programs

Optional Accessory

1. CB-F9F9-150: DB9 Female serial console Cable

M-508 Layout

M-508 Quick Installation Guide

3.0 mm

Screw: Φ 3 mm

JTAG CN1

Power LED

Ready LED

LAN LED

Power LED (PWR)

Power LED will keep solid green when power is applied.

Ready LED (RDY)

After Power ON, M-508 will decompress the kernel and root file

system to RAMDISK. Once system is boot up, the Ready LED will

show solid green. The Ready LED will be turned off after M-508

received “halt” command.

Link/Act (LAN)

When Ethernet port are connected to the network, Link/Act will show

solid green and if there is traffic in the Ethernet, this LED will flash

Serial Port LED (LD3~LD6)

These four dual color LEDs indicate the data traffic at the serial ports.

When RXD line is high then Orange light is ON and when TXD line

is high, Green light is ON.

Debug LED (LD1~2)

The debug LEDs are located near LAN LED and are used for system

boot debug. If system are correctly boot, they are switch off.

Serial Port

The serial port pin assignment is shown as follow:

Port 1/3: RS-232/422 (software selection)

RS-232: RXD,TXD,RTS,CTS,GND

RS-422: TXD+, TXD-,RXD+,RXD-,GND

Port 2: RS-232/422 (software selection)

RS-232: RXD,TXD,RTS,CTS,DSR,DTR,DCD,GND

RS-422: TXD+, TXD-,RXD+,RXD-,GND

Port 4: RS-232/422/485 (software selection)

RS-232: RXD,TXD,RTS,CTS,GND

RS-422: TXD+, TXD-,RXD+,RXD-,GND

RS-485: Data+, Data-, GND

Serial Console Port:

Serial console port is used for accessing M-508 using RS-232. At

factory, serial console port is disabled because serial console port

shares the Port 3 connector with the pin definition as shown:

User need to prepare or order a serial console cable

(CB-F9F9-100) and enable the serial console port as described in

Enable Serial Console port section.

Power Connector

Connect the +5VDC power line to M-508. If the power is

properly supply, the power LED will show a solid green color.

Please check the power voltage

and polarity before connecting it

Ethernet Port

The Ethernet Port uses RJ45 connector

SD Socket

The SD socket is compatible with SD memory card

specification version 1.0. The SD Socket is located in the back

panel of the PCB.

USB Port

The USB port is a USB2.0 high speed host port. It can be used

to expand the hardware function of M-508 and exchange file

and data between PC. Currently the hardware support by M-

508 USB is shown as follow:

1. USB Storage Device

2. USB to Wireless LAN Adaptor (Ralink RT2571)

3. USB to Modem (CDC compliant)

4. USB Camera

Contact Artila if you find your hardware is not shown on the

list.

Reset Button

Press the “Reset” button to activate the hardware reset. Please

always use “reboot” command to reset M-508. You should

only use this function if the software reboot does not function

properly.

General Purpose IO (GPIO)

GPIO signals are housed in a 20-pin box connector, GPIO1 and

GPIO2. Each of the connector includes 16 channels of GPIO. The

pin definition is as shown following:

The signal level of GPIO is CMOS level and pitch of the pin header

is 2.54 mm. Each of the DIO pin can be programmed as digital input

or digital output.

CN1 JTAG Header

JTAG header is located near power connector and it is a 2x4 2.0 mm

pin header and the pin definition is shown as follow:

COM2 TTL Header

COM2 TTL is a CMOS/TTL signal pin connector and it is

connected to UART of port 2 and its definition is as shown

below

This connector allows user to design an internal Modem to work

with M-508.

JP2 Boot manager selection

JP2 is boot selection jumper near CN1. Set to position 2-3

always. Change the setting will cause incorrectly boot up.

USB Client connector (J3)

USB client port is reserved for future enhancement. This

function is disabled by software.

Pin definition is as follow:

1. Data +

2. Data -

3. Host_detect

4. GND

RS-485 terminator jumper (J5,J7,J8,J9)

Short the jumper will enable the 120 ohm terminator as shown

below

910

1112

1314

1516

1718

1920

DI0

DI2

DI4

DI6

DI8

DI10

DI12

DI14

GND

+5V

DI1

DI3

DI5

DI7

DI9

DI11

DI13

DI15

GND

+3.3V

910

1112

1314

1516

1718

1920

DI16

DI18

DI20

DI22

DI24

DI26

DI28

DI30

GND

+5V

DI17

DI19

DI21

DI23

DI25

DI27

DI29

DI31

GND

+3.3V

GPIO1 GPIO2

2 4 6 8

1 3 5 7

JTAG

Definition

GND

+5VDC

RTS

TXD

CTS

RXD

3 2 1

1 2 3 4

Factory Default Settings

LAN 1 IP Address: 192.168.2.127

Password: guest

Supervisor: root (use ssh to login)

Password: root

Serial Console: Disabled

Network Settings

To configure the IP address, Netmask and Gateway setting, please

modify /disk/etc/rc as following:

ifconfig eth0 192.168.2.127 netmask 255.255.255.0

For DHCP setting:

dhcpcd eth1 &

Wireless LAN Configuration

M-508 supports wireless LAN by using USB WLAN adaptor

which uses Ralink RT2571 (rt73) controller. Please refer to the

website http://ralink.rapla.net for the supporting list of the USB

WLAN adaptor.

To configure the wireless LAN setting, please use command:

modprobe rt73

ifconfig wlan0 up

iwconfig wlan0 essid XXXX key YYYYYYYY mode MMMM

For infrastructure mode XXXX is the access point name and

YYYYYYYY is the encryption key and MMMM should be

managed

For Ad-Hoc mode mode XXXX is the M-508 host name and

YYYYYYYY is the encryption key MMMM should be ad-hoc.

To configure the IP address use command

dhcpcd wlan0 & or ifconfig wlan0 192.168.2.127 netmask

255.255.255.0

File System

M-508 configures the root file system as RAMDISK and the user

disk (/disk) which includes /home and /etc directory are

configured as Flash Disk. To find out the file system information,

please use command /mount as shown as below. In addition, use

command /df to find out the disk space of the disk. The

RAMDISK uses 8MB SDRAM space to store the root file system

and 8MB for uboot loader and Linux Kernel Therefore it is about

16MB free SDRAM for user application software. The image of

Linux kernel and root file system is stored in the flash memory

and it uses about 4MB flash memory space and the rest of 12MB

flash memory is designed for user flash disk to store user’s

program.

Therefore, user’s program and utility software must be saved

in the user disk space (/disk). Files saved to other directory

Utility Software:

M-508 includes busybox utility collection and Artila utility

software as follow:

Devices list

The supported devices are shown at /dev directory. Following

list are most popular ones:

1. ttyS0: serial console port

2. ttyS1 to ttyS4: serial port 1 to port 4

3. mmc to mmc2: SD memory card

4. sda to sde: USB flash disk

5. ttyUSB0 to ttyUSB1: USB RS-232 adaptor (fdti_sio.ko)

6. rtc: Real Time Clock

7. gpio: General Purpose digital I/O

8. ttyACM0 and ttyACM1: USB Modem (CDC compliant)

The second flash memory is configured as disk-1 and its

available space is 15MB. In addition, M-508T is equipped with

512KB FRAM and it is configured as sram

Artila Utility Software:

The introduction of Artila utility software as follow:

1. update : update loader, kernel or root file system image.

Also use update —FORMAT to format user disk. Type

update—help to find the command usage

Update can only operated under supervisor mode (password :

root)

2. setuart: configure serial port setting. An example show as

followed to configure port 1 as RS-485 interface with baud rate

921600. Please note only port 1 support 9-bit data at RS-485

How to make more utility software

You might also find utility software available on Artila CD

under /Matrix and iPAC/utility such as ntpclient, ssh, scp, bluez

and ssh-keygen. If you want, you can ftp or copy the utility

software to M-508 user disk (/disk). Also you can use find the

source code and use the GNU Tool Chain to make the utility by

yourself.

Mounting External Storage Memory

To find out the device name of the external memory device

which plug into M-508, you can use the command

/dmesg | grep sd

/dmesg | grep mmc

Type

mount /dev/sda1 to mount the USB disk and

mount /dev/mmc0 to mount SD card

Install GNU Tool Chain

Find a PC with Linux 2.6.X Kernel installed and login as a root

user then copy the arm-linux-3.3.2.tar.gz to root directory of

PC. Under root directory, type following command to install the

M-508 Tool Chain

#tar zxvf arm-linux-3.3.2.tar.gz

Welcome Message

To modify the welcome message, user can use text edit to

modify the /etc/motd.

Web Page Directory

The web pages are placed at /home/httpd and the boa.conf

contains the boa web server settings. The home page name

should be index.html

Getting started the Hello program

There are many example programs in Artila CD. To compile the

sample you can use the Make file to and type

make

To compile and link the library. Once done, use ftp command

ftp 192.168.2.127

And bin command to set transfer mode to binary

ftp>bin

to transfer the execution file to M-508 user disk (/disk) and use

chmod +x file.o

Change it to execution mode and

./file.o

to run the file

Adjust the system time

To adjust the RTC time, you can follow the command

/date MMDDhhmmYYYY

where

MM=Month (01~12)

DD=Date (01~31)

hh=Hour

mm=minutes

YYYY= Year

/hwclock –w

To write the date information to RTC

User can also use NTP client utility in Artila CD to adjust the

RTC time.

/ntpclient [time server ip]

SSH Console

M-508 support SSH. If you use Linux computer, you can use

SSH command to login M-508. The configuration of SSH and

key are located at

/etc/config/ssh

The key generation program is available at Artila CD

/matrix and ipac /utility/ssh_keygen

User can copy this program to M-508 to generate the key

Frequently Asked Question

1. Forgot password:

If you forgot the password for login, please use serial console to

modify the password

2. Rest M-508 to factory default setting

The factory default setting is available at /default directory. User

can copy the default setting to /etc and /home directories manually or

format the user disk to set M-508 to factory default setting.

Performing disk format will erase all the files in user disk. Therefore

please backup the files you need in USBDISK first before format the

disk. Use command:

/update —FORMAT

To format disk.

3. Forgot the IP address

If you forgot the M-508 IP address, you can use the Java Manager

available in Artila CD to search the IP address of M-508

Or use serial console port to find out the IP address by

#ifconfig

Enable Serial Console Port

The serial console port is disabled as factory default setting.

To enable the serial console, you need to use the serial

console cable (CB-RJ2CON-100) and connect it to port 3.

Use any terminal software such as hyper terminal and setting

as follow:

Baud Rate: 115200

Data bits: 8

Parity: N

Stop bit: 1

Terminal type: ANSI

Once system is power on, you will see “Starting M-508….”,

Keep typing $$$$ to turn on the serial console function. If

the serial console is enabled, you will see “Console (ttyS0)”

as follow. Repeat this procedure will disable the serial

console and Screen will show “Console (null)”

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