Sunday, October 25, 2009

tinyOS make error

There is an error might be occurred when compiling.
/opt/msp430/msp430/include/stdlib.h:52: syntax error before "asm"
make: *** [exe0] Error 1

Here is a solution,

Modify Line 52 of /opt/msp430/msp430/include/stdlib.h:
extern void exit(int) __asm__(”__stop_progExec__”) __ATTR_CONST__;

extern void exit(int) __ATTR_CONST__;
void exit(int a) __asm__("__stop_progExec__");

Monday, August 03, 2009

YuShanNet - Base Station Installation Guide


  • Overview - Base Station Functionality

Helping forwarding the user tags' information to the server.

Using 3G communicate to the server.


  • Install Debian From USB CD-ROM

Do NOT install any addiction package (space is limited)

  • Install required package

apt-get install libdevice-serialport-perl

apt-get install expect

apt-get install wvdial

apt-get install rsync

apt-get install beep

apt-get install ntpdate

  • Change time zone

ln -sf /usr/share/zoneinfo/Asia/Taipei /etc/localtime

  • Edit wvdial.conf

vim /etc/wvdial.conf


[Dialer Defaults]
Init1 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0

Modem Type = USB Modem

IDSN = 0

New PPPD = yes

Phone = *99#

Modem = /dev/ttyUSB1

Username = default

Password = default

Ask Password = 0

Dial Command = ATD

Stupid Mode = yes

  •  Create udev rule for serial device

vim /etc/udev/rules.d/taroko.rules 

kerne;="ttyUSB*", SYSFS{idVendor}=="0403", SYSFS{idProduct}=="6001", SYMLINK="TAROKO"

vim /etc/udev/rules.d/battery.rules


KERNEL=="ttyUSB*", SYSFS{idVendor}=="067b", SYSFS{idProduct}=="2303", SYMLINK="BATTERY"

  •  Edit rc.local

vim /etc/rc.local



/usr/bin/wvdial &

sh /root/BaseStation/run &

sh /root/BatteryMonitor/run &

sh /root/

exit 0

  • Copy and extract Base Station file to /root

 File structure


    |-- BaseStation
    |   |--
    |   |-- run
    |   |-- send
    |   |   `-- message
    |   `-- wildernessnet.sql
    |-- BatteryMonitor
    |   |--
    |   `-- run

  •  Add crontab tasks

crontab -e


# m h  dom mon dow   command

*        *    *     *       *       sh /root/ "/sbin/ifconfig" "/root/BaseStation/send/message/" "network.log"

*/10    *    *    *       *       sh /root/ "sh /root/" "/root/BaseStation/send/message/" "check.log"

*        *    *    *       *       rsync -av --compress --remove-source-files --timeout=10 --progress /root/BaseStation/send/ YuShanNet@ > /root/rsync.log 

  •  Add ssh key to server

ssh-keygen at StarBox (no passphrase)

copy the content of to the authorized_keys at the server



  •  Programs description      Receive the message from user's tag and forward to PC         Communication with the battery                   PC self-check procedure           Dump command inforamtion


All data that needed to send to the server will be placed under BaseStation/send directory.

Once the data is sent successfully, the data will be deleted.






Tuesday, January 06, 2009

Picture flow for ARM embedded system

This is the final project of SOC design lab. The goal is using FPGA to decoding jpeg files and show the pictures on the LCD screen. We use touch panel ( not support multi-touch) to create ipod like picture view applicaiton.