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1. Build a cross-compilation environment 1) modify the attributes of the OPT folder in the root directory Sudo chmod A + w/OPT 2) decompress the cross-compilation tool chain we found to/OPT TarXF crosstool.tar.bz2-C/OPT 3) modify the bash

1. Add the corresponding macro in the configuration file: Add # define config_cmd_mycmd2 to/include/configs/mx51_bbg_android.h, create the corresponding cmd_mycmd.c file in the common directory, and implement do_mycmd () function and u_boot_cmd

How to Use win7 with administrator permissions: 1. Right-click "computer" and choose "manage"> "user and group" 2. Find the administrators, right-click the attributes, and remove the check box before "this account has been disabled. Back to

After the upgrade to Ubuntu 8.10, the network configuration is a little different, and finally it is done, The result of filling in 255.255.255.0 In the prefix is "OK", which is dimmed and cannot be clicked. After a long time, I found this

Create a cross-compilation environment (ubuntu10.04) 1. Download The arm-linux-gcc-4.3.2.tgz 2. Extract the file sudo tar zxvf arm-linux-gcc-4.3.2.tgz-C/ 3. Add the environment variable vim ~ /. Bashrc Add export Path = $ path: /usr/local/ARM/4

I think this is a good introduction! O (distinct _ distinct) O ~ Download the following content before installation: ActivePerl 5.10.1 this is the latest version. s60 SDK requires Perl 5.6.1 or later.Http://www.activestate.com/activeperl/ JRE

The make command can contain four parameters: Flag, macro definition, description file name, and target file name. The standard format is:Make [flags] [macro definitions] [targets]The flags option in UNIX System and Its Meaning are: -F FileSpecify

Summary: In the socket port, a socket is only the hub of the interaction information between the user program and the kernel. It does not have much information, nor does it have the network protocol address andPort Number and other information.

1. Basic explanation 　　TypedefIt is a keyword in C language and defines a new name for a data type. The data types here include internal data types (INT, Char, etc.) and Custom Data Types (Struct). Used in programmingTypedefThere are two purposes:

Instance resolution {03-10  0-110  1000  0000}NC = 1 After encoding, the output code stream is:0000 1000 1110 0101 1110 1101 The detailed decoding process is as follows: 1.AccordingCoeff_tokenAndNCQuery table(See standard table9-5)To obtain the

How to configure DaVinci memory On dvevm, the memory is 256 m, so the routines in codec are configured according to the M memory. In other specific applications, the target board memory is not set to 256 MB. Therefore, memory configuration is an

This article mainly analyzes the compilation code lowlevel_init.s related to the u-boot startup process. The target platform uses PXA270 as an example. The file is located on the board/myboard/lowlevel_init.s and mainly executes memory-related

The error message and possible solution of partition magic are listed behind by number. The information is also divided into groups according to the error category. 1. Other errors (3-38) (1) #3 insufficient memoryThis error may occur when you

Since the release of ubuntu 8.10, many of my friends have joined 8.10. However, some of my friends have reported that Upgrade After arriving at Ubuntu 8.10, the NVIDIA graphics card is not working properly. If you cannot update the graphics

1. Installation Sudo apt-Get install TFTP Sudo apt-Get install xinetd   2. Create a shared directory Sudo mkdir/tftpboot 3. Change the shared directory to the maximum permission. Sudo chmod 777 tftpboot 4. modify the configuration file (/etc/inetd.

Power on ResetEnv. OS _auto_flag = 1Nand flash Boot Please select function:0: USB download file1: UART download file2: Write NAND Flash with download file3: Load pragram from NAND Flash and run4: erase NAND Flash regions5: Write nor flash with

Usage of registration device files, deletion of registration device files, registration interruption, and deletion interruption Register the device file function prototype: int register_chrdev (unsigned int major, const char * Name, struct

// Design an "aircraft" abstract class which derives two sub-classes: "transport plane" and "aircraft plane.// The transport plane class contains three attributes: name, model, and valid load.// The class includes three attributes: name, model, and

In ubuntu8.10, mplayer is used to play files in rmvb format. 1. mplayer is mainly used to watch audio and video files in rmvb format. Although its built-in movie player is intelligent, however, it does not support playing rmvb (only audio and no

/** Name: Step by Step delivery network Spider (1)** Version: V1.0** Author: Zhang Shuangxi** Date: 2010.10.17** Function: Find a valid URL from a string (correct URL in HTML syntax expression)** Process Design:* Filter URLs Based on HTML syntax