Digi 9P 9360/9750 Operation & User’s Manual
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Digi 9P 9360/9750, 29 Building the First Project Building the First Project CHAPTER 4 Building the Default Project Until now you have worked with the pre-loaded, default kernel image on the target. The next step is to rebuild it on your development host PC to familiarize yourself with the build process. Step 1: Run configure Start a new shell and change into your LxNETES installation directory. Create a new directory underneath and change to that directory. Then execute configure for your platform to configure your project. Example: This configures your project for t
Digi 9P 9360/9750, 21 Getting Started Getting Started CHAPTER 3 Introduction This chapter describes how to configure and test your host PC and development board (target) and how to start up the device for the very first time. Connecting host PC with development board Step 1: Connect serial port Connect the host PC to the development board (target) using a serial null-modem cable. The serial connection is used to interact with the target device. Step 2: Connect Ethernet interface The Ethernet connection can be established by connecting a crossover cable directly to the development board’s Ethernet port and your host PC. Alternatively, if y
Digi 9P 9360/9750, Linux boot methods 46 LxNETES User’s Guide Linux boot methods Linux is booted by U-Boot in one of the following ways: TFTP/NFS Flash memory USB storage device (e.g. an USB memory stick) The following information describes each boot method. TFTP/NFS With this method, the Linux kernel is downloaded through Ethernet via TFTP protocol from the server's TFTP folder. Use the "tftp" command from the U-Boot command line to copy a kernel image from your TFTP server to the target's RAM. Then use "bootm" to execute it. NAND-Flash This method will load the Linux kernel and the root file system from NAND Flash. Use the "n
Digi 9P 9360/9750, Boot process 44 LxNETES User’s Guide Boot process This chapter describes the boot process of U-Boot and Linux. Introduction A boot loader is a small piece of software that executes soon after powering up a computer. On a desktop PC it resides on the master boot record (MBR) of the hard drive and is executed after the PC BIOS performs various system initializations. The boot loader then passes system information to the kernel and then executes the kernel. For instance, the boot loader tells the kernel which hard drive partition to mount as root. In an embedded system the role of the boot loade
Digi 9P 9360/9750, 37 Application Development Nano-X/microwindows Nano-X makes it possible to write applications using the framebuffer with an API similar to Xlib. There are two demo applications. To use either you must start with the nano-X server. and then the application. For further details see http://www.microwindows.org/ Embedded Qt Embedded Qt is a small variant from the Troll Tech Cross Platform GUI toolkit. A demo is included. To start the demo enter the following: For further information see http://www.trolltech.com/products/qt3/embedded/ # nano-X & # nanox_bar & On targets with small flash, nano-X is disabled by default.
Digi 9P 9360/9750, 75 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
Digi 9P 9360/9750, 71 ••••••••••••••••••••••••••••••••••••••••••••••••••••••• • Appendix B U-Boot command reference This chapter gives an overview of common used U-Boot commands. Detailed information can be found at: http://www.denx.de/wiki/view/DULG/Manual?stickboard=tqm8xxl To get to the U-Boot prompt press any key immediately after you have powered the target on or pressed reset. At the prompt type “help” or “?” to get an overview of the supported commands.
Debugging applications 36 LxNETES User’s Guide Included pre-built applications The sources for the included applications can be found in the software folder on the LxNETES CD. Shell applications: busybox The “busybox” includes all standard shell applications like “cat”, “chmod”, “echo”, “mount”, “sh” and some more. They ar
Digi 9P 9360/9750, System Requirements/Prerequisites 16 LxNETES User’s Guide DOS or DOS-emulator (such as dosemu) Optional but recommended components: Qt3 development tools For using LxNETES, a recent Linux distribution based on GNU C Library glibc version 2.3 (a free implementation of the Standard C Library) is needed. To find out which glibc version is installed on your system use the following commands: Please make sure that you use GNU Make version 3.80 or later. Check yours with the following command: Check the versions of required applications wit
Digi 9P 9360/9750, 15 Requirements Requirements CHAPTER 2 System Requirements/Prerequisites System requirements Your development system should be a reasonably fast x86-based host PC with an Ethernet interface, a serial port, and a parallel port. Different Linux distributions such as SuSE, Debian, or RedHat can be used for the development. This documentation is based on the Debian Linux distribution; however, other distributions with minor changes in the settings can also be used. Please refer to the manuals of your Linux distribution if settings are not working as described in this document. The foll
Digi 9P 9360/9750, 11 Introduction Features What’s new in LxNETES 3.2? Linux Kernel Linux Kernel 2.6.12.5 Added touch screen driver for the ConnectCore 9P family Added RTC driver for the ConnectCore 9P family Build process based on autoconf Bootloader New U-Boot boot loader, based on version 1.1.3 Tool chain gcc-3.4.4 cross compiler for NET+ARM, ARM, and XScale processors General features With LxNETES you receive a Development Kit and BSP with the following features: Support for Linux kernel 2.6 Support for the foll
Digi 9P 9360/9750, 39 Kernel Development Kernel Development CHAPTER 6 Writing kernel modules What is a kernel module? Modules are pieces of code that can be loaded and unloaded into the kernel upon demand. They are useful because they extend the functionality of the kernel without the need to reboot the system. A typical kernel module is the device driver, which allows the kernel to access hardware connected to the system. Without modules, you would have to build substantial kernels and add new functionality directly into the kernel image. Besides havi
Digi 9P 9360/9750, Modifying the default project 42 LxNETES User’s Guide Once you have configured the kernel to your system needs, save the configuration and exit. To rebuild the kernel use one of the build commands seen before. $ make (to build the entire project) $ make uImage(to build only the linux kernel)
Digi 9P 9360/9750, 62 LxNETES User’s Guide USB host interface A USB host driver is included and enabled in the default kernel configuration. To operate multiple USB devices simultaneously, connect a USB hub to the USB host port. A memory stick can be mounted as followed I2C interface A driver for the I2C interface is included and enabled in the default kernel configuration. Devices attached to the I2C interface can be accessed via /sys/bus/i2c/device/<your device>. SPI interface A driver for the SPI interface is included and enabled in the default kernel configuration. It can be accessed via /sys/bus/spi/device/<your device>. LCD interface A
Digi 9P 9360/9750, 49 Advanced Topics Uncompressing Linux....................................................................... done, booting the kernel. Linux version 2.6.12.5-fs.1 ([email protected]) (gcc version 3.4.4) #1 Mon Sep 19 17:30:44 CEST 2005 CPU: ARM926EJ-Sid(wb) [41069264] revision 4 (ARMv5TEJ) CPU0: D VIVT write-back cache CPU0: I cache: 8192 bytes, associativity 4, 32 byte lines, 64 sets CPU0: D cache: 4096 bytes, associativity 4, 32 byte lines, 32 sets Machine: A9M
U-Boot command reference 72 LxNETES User’s Guide # help # ? - alias for 'help' # autoscr - run script from memory # base - print or set address offset # bdinfo - print Board Info structure # boot - boot default, i.e., run 'bootcmd' # bootd - boot default, i.e., run 'bootcmd' # bootelf - Boot from an ELF image in memory
Digi 9P 9360/9750, 67 ConnectCore 9P 9360 (CC9P9360) ConnectCore 9P 9750 (CC9P9750) hardware This folder contains hardware specific content. The JTAG Booster software (if supported by the target platform) is located here, hardware reference manuals and (depending on your target platform) files for CPLD logic. Please refer to the documentation in this directory for more information. LxNETES These files will be installed on the development host computer during the installation process. This includes source code and the environment to build the complete LxNETES distribution setup This folder contains files needed to install LxNETES File Des
Digi 9P 9360/9750, Related documentation 66 LxNETES User’s Guide There following folders are on the CD: Readme.txt Briefly describes LxNETES and lists the CD contents. RelNotes.txt Contains the last release information. install.sh A script to install LxNETES on your host computer. For more information see chapter 4 (installation). docs The doc folder contains this User's Manual and additional documentation. images This folder contains pre-built images for your target platform. These images are already programmed into the Flash memory on all modules shipped with a development kit. The files in the imags folder are named according to
Digi 9P 9360/9750, 43 Advanced Topics Building a custom project To create a custom project, that is a project for your custom hardware, first configure the default project. Follow the steps described in "Building the Default Project" up to running configure. Then run: In this example, ConnectCore 9P 9360 dev module ( cc9p9360dev)was used as the template project. Substitute the platform that is most similar to the platform you intend to create. Then create a new build directory and configure for your custom platform: Check the detected settings are correct in the new run of configure. Now you can reconfigure your custom kernel by
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