twd rts

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Gnu c and ANSI C

the same section together. The Linux kernel prefers this technology. For example, the initialization code of the system is arranged in a separate section, after initialization, you can release this part of memory.* Aligned (alignment)The aligned attribute is used for variables, structures, or union types. It specifies the aligned quantity of variables, structure fields, structures, or associations, in bytes. For example:++ Include/asm-i386/processor. h294: struct i387_fxsave_struct {295: Unsign

Django from getting started to forgetting to learn notes

0x00 Django ConceptDjango-python a framework that integrates the code of the Cgi,wsgi pattern into a web framework.0x01 MTV ModeUnlike the general MVC model, because of the integration of Django itself, C (Controller) has been integrated and does not need to be set up, and for us it is important for MTV (Model,template,view) three modules. Understanding the association between three modules is the key to learning Django.Django-admin startproject CMS (project name)->python manage.py Startapp appn

Gnu c Extension

used. # DEFINE _ init _ attribute _ (_ Section _ (". init. Text "))) In the Linux kernel, all functions labeled as _ init are stored in the. init. Text Section during the link. In addition, all the _ init functions are in the Section. initcall. init also saves a function pointer. during initialization, the kernel will call these _ init functions through these function pointers and release the init section after initialization. In the Linux kernel source code, segment-related important macro def

BCB6 Compiled LUA5.15 success!

Because you want to provide scripting functionality in a native app, Python's release is a hassle. Because the scripting features are simple, we decided to try the legendary Lua.The first step, download the source code. Although Lua has a binary version to download, but because I am using the turbo C + + Explorer (that is, the free version of C++builder), I decided to compile the source code myself. The download location is of course Lua's official website: http://www.lua.org.The second step is

GNUC extension used by Linux Kernel

, structure fields, structures, or union Qi, in bytes, for example: ++ Include/asm-i386/processor. h 294: struct i387_fxsave_struct { 295: unsigned short cwd; 296: unsigned short swd; 297: unsigned short twd; 298: unsigned short fop; 299: long fip; 300: long fcs; 301: long foo; ...... 308: }__ attribute _ (aligned (16 ))); It indicates that the variable of this structure type is 16 bytes aligned. Generally, the compiler selects an appropriate alignm

Gcc core extension linuxforum

attribute is used for variables, structures, or union types. It specifies the aligned quantity of variables, structure fields, structures, or associations, in bytes. For example: ++ Include/asm-i386/processor. h 294: struct i387_fxsave_struct { 295: unsigned short cwd; 296: unsigned short swd; 297: unsigned short twd; 298: unsigned short fop; 299: long fip; 300: long fcs; 301: long foo; ...... 308: }__ attribute _ (aligned (16 ))); It indicates tha

Linux C gets the current working directory

#include Operation Result:Buffer:p: (NULL) size:0Dir:/mnt/sdb1/yangyx/system system programming/File directory interface and sound card implementationBuffer:/mnt/sdb1/yangyx/system system programming/File directory interface and sound card implementation Twd:/mnt/sdb1/yangyx/system system programming/File directory interface and sound card implementationLinux C gets the current working directory

The Linux device tree in my eyes (four interrupts)

./ {Model = "Marvell Armada 375 family SoC";compatible = "marvell,armada375";Soc {#address-cells = #size-cells = Interrupt-parent = Internal-regs {compatible = "Simple-bus";#address-cells = #size-cells = [Email protected] {compatible = "Arm,cortex-a9-twd-timer";Reg = Interrupts = Clocks = };GIC: [email protected]0 {compatible = "Arm,cortex-a9-gic";#interrupt-cells = #address-cells = Interrupt-controller;reg = };}Pcie-controller {compatible = "Marvell,

A detailed tutorial on using tripwire to monitor data integrity under Linux installation and construction tripwire system

the statement to the next line in this line (before and after 113 lines)!$ (twdb)/$ (HOSTNAME). TWD; ← Add this sentence (do not monitor the database) [Root@sample ~]# twadmin--create-polfile-s/etc/tripwire/site.key/etc/tripwire/twpol.txt← Create an encrypted format profile from a text configuration file Please enter your site passphrase:← input "site keyfile" password (not displayed after input)Wrote policy file:/etc/tripwire/tw.pol [Root@sample ~]#

Complete Linux kernel analysis-mathematical co-processor (1)

math_emulate.c will be called () function to use the software to "interpret" Each coprocessor command. Math_emulate.c, The Mathematical co-processor simulation program in Linux 0.12, fully simulates the 80387 chip to execute the co-processor command. Before processing a coprocessor command, the program will first establish a "soft" 80387 environment in the memory using data structures and other types, including imitating all 80387 internal stack-type accumulators ST [], control word register CW

GCC extension for Linux Kernel

: # DEFINE _ exit _ attribute _ (unused, _ Section _ (". Text. Exit ")))80: # DEFINE _ initdata _ attribute _ (_ Section _ (". Data. init ")))81: # DEFINE _ exitdata _ attribute _ (unused, _ Section _ (". Data. Exit ")))82: # DEFINE _ initsetup _ attribute _ (unused ,__ section _ (". setup. init ")))83: # DEFINE _ init_call _ attribute _ (unused ,__ section _ (". initcall. init ")))84: # DEFINE _ exit_call _ attribute _ (unused ,__ section _ (". exitcall. Exit "))) The connector can arrange the

Linux Device Tree in my eyes (four interruptions ),

it./{Model = "Marvell Armada 375 family SoC ";Compatible = "marvell, armada375 ";Soc {# Address-cells = # Size-cells = Interrupt-parent = Internal-regs {Compatible = "simple-bus ";# Address-cells = # Size-cells = Timer @ c600 {Compatible = "arm, cortex-a9-twd-timer ";Reg = Interrupts = Clocks = };Gic: interrupt-controller @ d000 {Compatible = "arm, cortex-a9-gic ";# Interrupt-cells = # Address-cells = Interrupt-controller;Reg = };}Pcie-controller {Co

IPhone5S stock market function How to use? Apple 5s stock Market function use method

As a first step, we find the "stock market" App in iphone5s, open it and click on the button in the lower right corner of the Open interface. The second step, then we go to the "stock" operating interface, we click on the top right button, add a stock symbol: The third step, such as we now enter "Cny=x", and then we click to select "Cny=x" code, add, click "Finish." Now you will see the renminbi exchange rate against the dollar. If we are operating in other currencie

Advanced wireless functions of Tenda Routers

The wireless advanced features of the Tenda router have already been set for the wireless network. Today we will introduce the wireless advanced feature settings. You can use the wireless advanced settings to set the Wireless Parameters in detail, this includes a wireless probe code, 80211g/n rate, Fragmentation threshold, and the RTS threshold. Take the tengda router as an example.1. the BG protection mode facilitates slow wireless connections to smo

Introduction to RS-232

Usually the RS-232 interface appears in 9-pin (DB-9) or 25-pin (DB-25) Type Generally, there are two groups of RS-232 interfaces on the PC, called COM1 and com2 RS-232C interface signal RS-232C Gauge Standard Interface has 25 lines, 4 lines, 11 control lines, 3 timing lines, 7 standby and undefined lines, commonly used only 9, they are 1. The data set ready-DSR status indicates that the modem is in usable state. 2. Data Terminal ready-DTR indicates that the data terminal can use 3 request to sen

Serial Assistant Notes

-connect PC and MCUSeven-wire cross-connect: applicable between PC and PC to connect the signal to: (TXD,RXD), (RXD,TXD), (SG,SG), (rts,cts), (Cts,rts), (DSR.DTR), (DTR,DSR)RTS for request send, CTS for permission to send, DSR ready for data device, DTR ready for Data terminalIf the microcontroller is a TTL type (>2.4v is 1, less than 0.5V means 0), then a level

FPGA-based data non-blocking switching Design

FPGA-based data non-blocking switching Design [Date:] Source: China Power Grid Author: Bai Haibin, Lu Xiaoqing [Font:Large Medium Small]   0 Introduction With the development of FPGA and large-scale integrated circuits, there is a new way to implement data exchange. In this design, FPGA completes the exchange of serial data signals (TXD, RXD), and a dedicated Time Slot Switching chip completes the serial handshake line (RTS, CTS,

Python serial Library

Pyserialoverview This module encapsulates the access for the serial port. it provides backends for python running on Windows, Linux, BSD (possibly any POSIX compliant system), Jython and ironpython (. net and mono ). the module named "serial" automatically selects the appropriate backend.It is released under a free software license, see license.txt for more details.(C) 2001-2008 Chris liechti cliechti@gmx.netThe project page on SourceForge and here is the svn repository and the download page.The

Centos wireless Nic Configuration

Centos wireless Nic ConfigurationI have a notebook that is not commonly used. It is a centos system. When I accidentally press Fn at a time, the network is no longer available. Afterwards, I finally got it and took a note.1. Check whether the driver is still running$ Lspci | grep Network. 0 Network controller: Realtek semiconduco., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)If the NIC information appears, the driver is normal and the configuration is incorrect.2. view the NIC status$ Ifconf

Router troubleshooting methods

be configured through the front panel. Another method is to connect the modem to the asynchronous interface of the router, establish reverse telnet, and send the setting command to configure the modem. The show interface async and show line commands are the most widely used tools for diagnosing asynchronous communication port faults. In the show interface async command output report, the only condition that the interface status report is closed is that the encapsulation type is not set for the

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