arm techcon

about ARM [1]1. Arm sells only intellectual property and does not sell (physical, material) products.More than 100 companies worldwide have purchased ARM licenses, including Samsung, Freescale, NXP Semiconductors, STMicroelectronics, Texas Instruments, Toshiba,analog Device, Atmel,microsemi ... See ARM's website for detailsNumber of classic

link functionality. In ARM-LINUX-GCC, this link-mode command has the following basic form $ (cc) -static-wl,-tboot.lds,-map,system.map-nostartfiles-o boot.elf $ (OBJS) CC This is ARM-LINUX-GCC -Wl, -TBOOT.LDS,-MAP,SYSTEM.MAP-WL indicates that subsequent arguments are passed to the linker, and the arguments are separated by commas. -tboot.lds is the specified link script that plans the location

Reprinted from: http://bbs.ednchina.com/BLOG_ARTICLE_78070.HTM A good introduction to arm Technical category: Arm Release date: 17:05:47 1. capture 51 development arm Over the past few months, I have been stuck in the 51 issue. I have a little bit of laughter. It took me four months to consolidate the 51 p

Download arm-Linux-GCC tool chain You can download frequently-used cross-compilation files from the following sites:Http://frank.harvard.edu /~ Coldwell/toolchain/Http://www.kegel.com/crosstool/IFrom: http://hi.baidu.com/zhxubo/blog/item/ee0987b41c66a0748ad4b263.htmlHttp://www.handhelds.org/download/projects/toolchain/Http://ftp.arm.linux.org.uk/pub/armlinux/toolchain/Http://so.hustonline.net/list

Arm and realviewEmbedded debugging of arm realview With the development of embedded applications, especially in the field of digital communication and network, it puts forward higher requirements on processor performance. To adapt to this situation, there have been many multi-core structured processors, such as two or more arm or DSP processors. At the same time,

Environment: the ARM development board is ok6410, and the host is ubuntu10.04. 1. Preparation: Use the optical disc arm-linux-4.4.1.tar.gz tool to decompress the tool to the/usr/local/ARM directory (Add/usr/local/ARM/bin to the environment variable). Download The opencv2.2 source code; install cmake build-essential; in

Although it is convenient to use C or C ++ to write programs in Linux, the assembler source program is used for the most basic initialization of the system, such as initializing the stack pointer, setting the page table, and operating the arm coprocessor. After initialization, you can jump to C code execution. Note that the GNU assembler follows att's Assembly syntax and can download the relevant specifications from the GNU website (www.gnu.org. I. Li

The following system for ubuntu16.04, Development Board for the itop4412,4.3 inch screen.Download qt5.7 Source Qt-everywhere-opensource-src-5.7.0.tar.xzHttp://www.download3k.com/Install-Qt.html Arm cross-compilation tool download arm-2014.05-29-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2http://www.veryarm.com/arm-

Design of ARM-based digital video surveillance system [Date:] Source: Electronic Engineering album by: Wang Qin Yang Zhen [Font:Large Medium Small] 　 Introduction Image and video surveillance systems are systems that use computer and communication technology to monitor information in target regions. They are often used in transportation, energy, public security, telecommunications, military, and other departments. As the applica

Production Environment of the ARM platform Cross Compiler: production of the middleware ARM platform Cross Compiler Host environment: Ubuntu 12.04.1 64bit Gcc version 4.6.3 ubuntu 12.04.1 64bit gcc version 4.6.3 1. download the latest source code package Binutils-2.22.tar.gz Gcc-4.7.2.tar.bz2 Gmp-5.0.5.tar.xz Mpfr-3.1.1.tar.xz Mpc-1.0.1.tar.gz Glibc-2.16.0.tar.xz Glibc-linuxthreads-2.

Cisco Packet Tracer version: 6.0.0.0045Single-arm routingVLAN planningConfiguration on Switch 0:switch>enSwitch (config) #vlan 2 #创建vlan2Switch (config) #vlan 3 #创建vlan3Switch (Config-vlan) #exitSwitch (config) #exitSwitch#show VLAN #查看vlanSwitch (config) #interface range F0/2-F0/4 #range可以批量选择端口Switch (config-if-range) #switchport ACC VLAN 2 #将这3个端口添加到vlan2里面Switch (Config-if-range) #exitSwitch (config) #exitSwitch#show VLAN #查看vlan, the following 2,

Cisco single-arm routing experimental Topology diagram:650) this.width=650; "title=" 2017-05-18_094542.png "style=" height:444px;width:568px "alt=" wKioL1kc_ Iozgudyaablhh3zdgo967.png "src=" Https://s3.51cto.com/wyfs02/M00/96/18/wKioL1kc_iOzgUdYAABLhh3zdGo967.png "width= "587" height= "461"/> The configuration of the IOU1 is as follows:Interface ethernet0/0No IP address!Interface ethernet0/0.1Encapsulation dot1q 10IP address 192.168.10.254 255.2

Note the nature of the article.In fact, I want to implement my FW150US-USB wireless card function on the arm Development Board, so test the USB interface.1. Configuring the KernelDevice Drivers---> SCSI device Support---> 2. Burn and write the kernel and load[Email protected]/]# ls/dev/after inserting the USB flash drive will find that the directory is more sda1 (for some U disk, not the name, so in the automatic loading script s

1. Download and unzip the source file from the official website www.tcpdump.org, here isTcpdump-4.5.1.tar.gzLibpcap-1.5.3.tar.gz2. Compile libpcap, install directory is/home/armroot, cross compilation cannot determine Pcap type, manually designated as Linux./configure--host=arm-linux--with-pcap=linux--prefix=/home/armrootMakeMake install3. Compile the tcpdump. Cross-compilation cannot determine the kernel version, manually designated as the kernel ver

System environment:1. Operating system: Ubuntu16.042. Cross-compiling tool chain: arm-linux-gcc4.4.33, BusyBox source package: busybox-1.25.0First, modify the makefile configurationFirst unpack the source package:TAR-JXVF busybox-1.25.0.tar.bz2Enter the busybox-1.25.0 directory and modify the makefile file as follows:ARCH? = ArmCross_compile? = arm-linux-Second, modify the configuration fileMake MenuconfigC

Accustomed to the integrated development environment on Windows, it is quite painful for C/D + + development on Linux.Maybe the big guys will batch, Linux has vim how powerful tools, but really do not use, radish vegetables bar.Just contact with Linux, I feel that the debugging of the application is quite bad, with the gdb+printf, if you can learn to use GDB to debug Linux applications, quite a force lattice, is a lot of instructions to remember.For me this just into the pit is not deep, then wo

On an arm Ubuntu system, the shutdown operation can be implemented by command: Poweroff or shutdown, but without an end device or keyboard, you cannot use the command line, which uses the ACPI mechanism, ACPI listener power events, to the operating system.Implementation steps:1, the driving part, the first to implement the Gpio-keys device, the POWER key is specified, is to use an interrupt pin, the code type is defined as "Key_power"Like what:/* GPIO

The previous blog analyzed the first dozens of compilations of the arm kernel launch,Analysis today, but today only analyzes Stext in a compilation, as follows:BL __create_page_tablesLet's see how the page table is initialized before the MMU starts early in kernel.#ifdef CONFIG_ARM_LPAE/* LPAE requires an additional page for the PGD */#define PG_DIR_SIZE 0x5000#define Pmd_order 3#else#define pg_dir_size 0x4000#define pmd_order 2#endif ... Macro Pgtbl,

... mov pc, Lrmemsetup:mov R1, #MEM_CTL_BASEadrl R2, Mem_cfg_valadd R3, R1, #521: Ldr R4, [R2], #4str R4, [R1], #4cmp R1, R3bne 1bmov pc, Lr.align 4mem_cfg_val: The value of 13 registers in the storage controller. Long 0x22011110.long 0x00000700.long 0x00000700 . Long 0x00000700.long 0x00000700.long 0x00000700.long 0x00000700.long 0x00018005.long0x00018005.long 0x008c07a3.long 0x000000b1.long 0x00000030.long 0x00000030 MakefileSdram.bin:head. S led.carm-linux-gcc-c head. S-o head.oarm-linux-g

Tags: Linux arm iic i²c EEPROM Read and write operationSeveral sets of i²c buses are detected[Email protected]:~# i2cdetect-li2c-0i2c OMAP i²c adapter i²c adapteri2c-1i2c OMAP i²c Adapter I²c Adapter[email protected]:~#Check the online status of the device on each bus:-y means yes,0 represents/dev/i2c-0[emailprotected]:~#i2cdetect-y-r00 12345678 9abcdef00: -------------------- ------10:------------------ --------------20:--------uu -------------------