Digi 9P 9360/9750 manual NOR Flash, Usb

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A d v a n c e d T o p i c s

A faster way to do this is to use the "boot_flash" macro.

NOR Flash

Use the following commands if you have NOR Flash (similar to booting from NAND).

#setenv bootargs console=...

ip=$(ipaddr):$(serverip)::$(netmask):2440:eth0:off root=/dev/mtdblock2 rootfstype=jffs2

#cp.b <start flash> <load_addr> <kernel_image_size>

#bootm <load_addr>

A faster way to do this is to use the "boot_flash" macro.

USB

It is possible to load a kernel image from a USB storage device. Copy the kernal to the FAT partition of the USB device.

Copy the kernal to the USB stick.

The commands update_kernel_usb and guu are provided.

Enter the following to copy the kernel from the USB stick to the memory.

#run guu

The image can now be executed with the bootm command.

There is also a macro for boot_usb which does both steps. It is run boot_usb.

# run boot_usb

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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 Cross-development environment IntroductionOverview Example applications Linux kernel sourcesTemplate project What’s new in LxNETES 3.2? FeaturesGeneral features RTC Gpio This is a tip. It contains useful information about a topic Conventions used in this manualAcronyms and abbreviations System requirements RequirementsSystem Requirements/Prerequisites 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 Introduction Connecting host PC with development boardGetting Started Seyon MinicomSeyon Settings Connect powerTest Ethernet configuration # ifconfig eth0 Installing LxNETESGuided Installation Manual Installation N u a l Installation Building the First Project Building the Default ProjectRun configure Run make Run make installAdding your own applications Application DevelopmentWriting applications Display Using C++Included example applications 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 modulesIncluded Kernel modules Minimal Add the module to the build environmentBuilding and loading of kernel modules 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 Introduction Boot process Boot 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 Updating the Flash memory Passing arguments to the kernelAutomating the image download Updating a running system manually Updating a running system the easy wayWrite the image to Flash Download the new image file to RAMErase the Flash partition Root File System BootKernel Updating a corrupted system using a debugger Root File System Types Launch the kernel from RAM Set bootargs to be passed to the kernelDownload the kernel to RAM via Tftp 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 Related documentation CD contentsAppendix a 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