arm techcon

function pointers are the basis for implementing callback functions, which are the basis of C program architecture. So the importance of function pointers is self-evident. However, recently on the Arm Development Board test program, found that the function pointer can be compiled, but the runtime is always error. The following is one of the simplest test program source code. static void Test () { puts ("test\n"); } static void (*f) = test; void M

Turn from: http://ds.arm.com/zh-cn/developer-resources/tutorials/working-with-arm-ds-5/ Create a simple Hello World C program with bare metal as the target After installing and obtaining the licenses required to use DS-5, this tutorial will guide you through creating, configuring, and generating simple bare-metal applications. After the application is generated, this tutorial guides you through a series of configuration steps to establish a debug con

After several days of efforts finally on the Arm-linux platform to build a apache+sqlite+php platform. Apche and SQLite online have a lot of information, and PHP for Arm-linux very little. In order to install PHP on the ARM platform to send a lot of time. So the construction process will be published here, I hope to help you. Sqlite for

Arm belongs to RISC instruction set, and x86 is representative of CISC instruction set, the result of compiler generation is more representative. Among them, parameter passing and return values are the most concerned parts of assembly/C mixed programming, especially in bootloader programming. In general, RISC tends to register to pass parameters, while x86 is passing parameters through the stack. The return value is achieved through the most efficient

"Single Arm Routing" Function: Realize communication between different VLAN Implementation method: Configure the Sub-interface, encapsulate different VLAN separately "VTP" Chinese name: Virtual LAN Relay protocol Role: Unified Management VLAN Implementation method: Configure a switch connected through a relay link in a domain "VTP Precautions" A) VTP can automatically update "domain name, version, revision number, trim, VLAN number, VLAN name"

APCS Introduction(ARM procedure Call standard) · Introduced · Register naming · Design key · Consistency · Stack · Backtracking structure · Actual parameters · function exit · Build a stack backtracking structure · APCS Standard · Something that's useful for coding Introduced The Apcs,arm procedure invocation standard (ARM Procedure call standards) prov

In order to optimize the ARM CPU to do deinterlace, learning Arm assembly, for ARM Assembly of the parameters of the rules do not understand, hereby record. Original link: Http://lli_njupt.0fees.net/ar01s05.html 5. Atpcs and inline assembly Atpcs (arm-thumb produce call Standard) is the basic rule of subroutine invoca

-Vic in armA:If the code is run in the On-chip RAM and the application needs to call the interrupt, the interrupt vector must be re-mapped to the flash Address 0x0. This is done because all the abnormal vectors are located at the address.0x0 and above. This is achieved by configuring the register memmap (in the system control module) to the user Ram mode. User code is connected to enable the interrupted vector table to be loaded0X4000 0000. 4. Arm sta

Installing the cross-compilation tool arm-linux-gcc-4.3.22011-07-08 00:55:28| Category: Embedded | Report | Font size Subscription Environment: Fedora 9STEP 1: Download arm-linux-gcc-4.3.2.tgz.Put arm-linux-gcc-4.3.2.tgz in a directory, I put it in/opt。download Site 1: http://www.arm123.com.cn/linux/arm-linux-gcc

Article 1Article, Explains the basics of SOC design! Address: http://blog.163.com/gene_lu/blog/static/64025421201111872144184/ We skip all the descriptions of arm and directly go to the questions most concerned by engineers.To design an ARM-based SOC, we must first understand an ARM-based SoC structure. Figure 1 shows a typical SOC structure:Figure 1Fro

1. Some common abbreviations and explanations of ARM MSB: the highest valid bit; LSB: minimum valid bit; AHB: advanced high-performance bus; VPB: a large-scale peripheral bus connecting the peripheral functions of the chip; EMC: external memory controller; Mam: Memory acceleration module; VIC: vector interrupt controller; SPI: full-duplex serial interface; Can: controller LAN, a serial communication protocol; PWM: pulse width modulation; TM: Embedded

, why became 1.0, I do not know, how to compile is not difficult, difficult in how to configure, related documents please read my other document "Arm-linux Tslib", of course, which document may not help you to fix, you need to use your intelligence, You may need to read the kernel-screen-driven source code. My Development suite Touch-screen controller is the CPU itself with the ad converter, kernel driver is compatible with H3600, so I ts.conf file Mo

Mplayer 1.0 already comes with most of the decoding libraries, such as FFMPEG, but the built-in audio library works very poorly in s32440. use libmad instead. therefore, to port mplayer in arm-Linux, you only need to port the two. after transplantation, the character interface is played. the arm version was first run successfully by my student Cheng lei.However, the complete version requires the following l

Article Title: Create an arm-linux cross-compiling environment step by step. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. The following files are used as examples to create an arm-linux cross-compiling environment: 　　 Compiling environment redhat 7.2 or 8.0 Binutils-2

The use record of serial Bluetooth in ap6212 under LinuxFirst, the Linux Bluetooth tool portingThe main tools used and related libraries are as follows:bluez-libs-3.36libxml2-2.7.4dbus-1.0.2glib-2.24.2bluez-utils-3.36openobex-1.5Download the appropriate source code to extract, according to the above sequence to compile.Add mk.sh content in bluez-libs-3.36 as follows#!/bin/sh./configure--prefix=/usr/bluez--host=arm-linux--target=

Sort the information according to arm official and online documents. Let's take a picture of the Architecture first. ARM microprocessor Series ARM microprocessor currently includes the following series, as well as other manufacturers based on the ARM architecture of the processor, in addition In addition to the common

I. Preface Anyone who has learned about ARM embedded knows that in order to make the PC program run on the ARM board, a cross-compilation environment must be established to compile the source code. I will not talk about the basic concepts of the Cross-compilation environment. Here, I mainly write the steps and ideas for creating a cross-compilation environment. My setup process went through four crazy days.

Arm-linux compiler cross tool detailed description arm-linux tool functions are as follows: arm-linux-addr2line program address to convert the file name and line number. In the command line, give it an address and an executable file name, it will use the debugging information of this executable file to point out that the given address is the

The main difference between this article and the previous one is that there is no use of system GMP, MPFR, MPC, Cloog, etc., but using source code to compile. 1. Compile binutils: Unzip the BINUTLS code into the SRC directory and create the Binutil directory in the build directory. Execute in the Build/binutils directory: .. /.. /src/binutils-2.25/configure--prefix=/home/charles/code/build_toolchain/toolchain--with-sysroot=/home/charles/ Code/build_toolchain/toolchain/

/********************************************************************************* * ARM Linux Qt 5. x.x No title bar * Description: * Previous QT 4.x.x version is directly with the title bar, but now the QT 5.x.x without the title bar, from the reference article * can be seen, it is necessary to transplant the window manager. * 2017-1-6 Shenzhen Nanshan Ping Shan village Zengjianfeng ********************************************************** ********