Digi 9P 9360/9750 manual User keys, Example A9M24x0

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The command “run” allows to execute variables as sequence od commands.

Here values of other variables could be used to simplify the scripts. (e.g. $(filesize) )

Example (A9M24x0):

The following variables are available:

ipaddr = 192.168.42.10

serverip = 192.168.42.1

loadaddress = 0x30100000

bootfile = uImage-a9m2410dev

setenv bootcmd tftp\;bootm

This command is identical with:

setenv bootcmd tftp 30100000 uImage-a9m2410dev\;bootm 30100000

and:

setenv bootcmd tftp 30100000 $(bootfile)\;bootm 30100000

User keys

Note: CC9P9360/9750 and A9M2410/2440 only

There are two User Keys on the development board, which can be used with functions from U-Boot. It is common to use them for booting different kernel versions or using different rootfs. For example:

#setenv key1 run boot_usb

#setenv key2 run boot_net

#saveenv

When User Key 1 is pressed in the start phase of U-Boot, the contents of the variable “key1” is executed, i.e. the target will boot from a USB medium.

When User Key 2 is pressed the target boots via TFTP/NFS.

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Contents LxNETES User’s Guide ConnectCore 9P 9360/9750 Page Page Page Contents Building the First Project Interfaces & Devices Appendix B Introduction OverviewCross-development environment Linux kernel sources Template projectExample applications Features General featuresWhat’s new in LxNETES 3.2? RTC Gpio This is a tip. It contains useful information about a topic Conventions used in this manualAcronyms and abbreviations Requirements System Requirements/PrerequisitesSystem requirements Optional but recommended components Disk spaceTftp daemon Applications & ServicesNFS server JTAG-Booster N E T E S U s e r ’ s G u i d e Connecting host PC with development board Getting StartedIntroduction Seyon MinicomSeyon Settings Connect powerTest Ethernet configuration # ifconfig eth0 Installing LxNETESGuided Installation Manual Installation N u a l Installation Building the Default Project Run configureBuilding the First Project Run make Run make installApplication Development Writing applicationsAdding your own applications Using C++ Included example applicationsDisplay Proc/cpuinfo contents Debugging applications Choose the right architecture for your target Web server Boa Included pre-built applicationsShell applications busybox Telnet daemon utelnetdEmbedded Qt Nano-X/microwindowsMem Useful applicationsWriting your own kernel modules What is a kernel module?Kernel Development Writing kernel modulesAdd the module to the build environment Building and loading of kernel modulesIncluded Kernel modules Minimal Advanced Topics Modifying the default projectD i f y i n g t h e d e Fault p r o j e c t Building a custom project Boot process BootIntroduction Bank # 0 00000000 32 MB ConnectCore 9P 9360/9750NAND-Flash Linux boot methodsUSB NOR FlashMMU Linux boot processV a n c e d T o p i c s Passing arguments to the kernel Automating the image downloadUpdating the Flash memory Updating a running system manually Updating a running system the easy wayDownload the new image file to RAM Erase the Flash partitionWrite the image to Flash Boot KernelRoot File System Updating a corrupted system using a debugger Root File System Types Set bootargs to be passed to the kernel Download the kernel to RAM via TftpLaunch the kernel from RAM JFFS2 Copy the kernel to RAM O t F i l e S y s t e m T y p e s N E T E S U s e r ’ s G u i d e Serial interface Interfaces & DevicesLCD interface USB host interfaceI2C interface SPI interfaceReal time clock RTC How to set the initial system date and timeCompact flash interface SD card interfacePCI interface CD contents Appendix aRelated documentation Docs Images Install.shReadme.txt RelNotes.txtHardware SetupConnectCore 9P 9360 CC9P9360 ConnectCore 9P 9750 CC9P9750Sdram memory layout Memory layoutsFlash memory layout ConnectCore 9P 9360 / ConnectCore 9PTextbase N E T E S U s e r ’ s G u i d e Appendix B Boot command referenceO o t c o m m a n d r e f e r e n c e Skipped CC9C CCXP270 UNC90 Example A9M24x0 User keys