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Compiling tcps2.c..................................................................................................... 2-16
Uploading tcps2-release and Running the Program ................................................. 2-17
Testing Procedure Summary .................................................................................... 2-19
Chapter 3 Managing Embedded Linux ........................................................................3-1
System Version Information..................................................................................................... 3-2
System Image Backup.............................................................................................................. 3-2
Upgrading the Firmware............................................................................................. 3-2
Loading Factory Defaults........................................................................................... 3-4
Backing Up the User File System............................................................................... 3-5
Deploying the User File System to Additional UC-7420/7410 Units ........................ 3-5
Enabling and Disabling Daemons............................................................................................ 3-6
Setting the Run-Level.............................................................................................................. 3-8
Adjusting the System Time...................................................................................................... 3-9
Setting the Time Manually......................................................................................... 3-9
NTP Client................................................................................................................ 3-10
Updating the Time Automatically............................................................................ 3-10
Cron—daemon to Execute Scheduled Commands .................................................................3-11
Connecting Peripherals.......................................................................................................... 3-12
USB Mass Storage.................................................................................................... 3-12
CF Mass Storage ...................................................................................................... 3-12
Chapter 4 Managing Communications ........................................................................4-1
Telnet / FTP ............................................................................................................................. 4-2
DNS ......................................................................................................................................... 4-2
Web Service—Apache............................................................................................................. 4-2
Saving a Web Page to the CF Card ............................................................................ 4-4
IPTABLES............................................................................................................................... 4-6
NAT........................................................................................................................................ 4-10
NAT Example .......................................................................................................... 4-10
Enabling NAT at Bootup.......................................................................................... 4-10
Dial-up Service—PPP.............................................................................................................4-11
NFS (Network File System)................................................................................................... 4-14
Setting up UC-7420/7410 as an NFS Server............................................................ 4-14
Setting up UC-7420/7410 as an NFS Client............................................................. 4-15
Mail........................................................................................................................................ 4-16
SNMP .................................................................................................................................... 4-16
Open VPN.............................................................................................................................. 4-17
Chapter 5 Programmer’s Guide....................................................................................5-1
Flash Memory Map.................................................................................................................. 5-2
Linux Tool Chain Introduction................................................................................................. 5-2
Debugging with GDB.............................................................................................................. 5-3
Device API............................................................................................................................... 5-4
RTC (Real Time Clock) ........................................................................................................... 5-4
Buzzer...................................................................................................................................... 5-4
WDT (Watch Dog Timer) ........................................................................................................ 5-5
UART....................................................................................................................................... 5-9
LCM....................................................................................................................................... 5-10
KeyPad................................................................................................................................... 5-10
Make File Example.................................................................................................................5-11
Chapter 6 UC Finder......................................................................................................6-1