Unix Unleashed, Third Edition is written with the power user and system administrator in mind. This book will help the reader understand the nuances of the major Unix variants including SVR4, HP-UX, Solaris, AIX, BSD, IRIX, SunOS, and Linux. It will help the reader decide which Unix shell works best for their particular situation. Other topics such as Kernel Configuration, Networking, User Administration, and File Management are covered extensively for the administrator who wants a variety of options to choose from for best performance. The book also provides in-depth coverage of configuring and optimizing mail, DNS, HTTP and other services many companies deploy across their intranet and on the Internet
标签: administrator Unleashed Edition written
上传时间: 2017-01-13
上传用户:来茴
三星公司提供的vivi0.1.4源码,支持网络更新kernel和sysfiles,下载后更名为vivi.tar.bz2
上传时间: 2017-01-19
上传用户:hopy
PC与单片机双向通讯智能温控程序 #include <AT89X51.H> #include <intrins.h> #define Key_UP P1_0 #define Key_DOWN P1_1 #define Key_SET P1_2 #define RelayOutPort P2_0 #define LEDPort P0 #define DELPort P2_1 #define LEDTwoC P3_6 #define LEDThreeC P3_7 #define TMPort P2_7 #define INBUF_LEN 5 //数据长度 unsigned char inbuf1[INBUF_LEN]={ 0 , 0 , 0 , 0 , 0 } //发送缓冲区 unsigned char inbuf2[50] //接收缓冲区 unsigned char count3 void init_serialcomm( void ) { SCON = 0x50 //SCON: serail mode 1, 8-bit UART, enable ucvr TMOD |= 0x20 //TMOD: timer 1, mode 2, 8-bit reload PCON |= 0x80 //SMOD=1 TH1 = 0xFA //Baud:4800 fosc=11.0592MHz IE |= 0x90 //Enable Serial Interrupt TR1 = 1 // timer 1 run } //向串口发送一个字符 void send_char_com( unsigned char ch) { SBUF=ch while (TI== 0 ) TI= 0
标签: include intrins define Key_UP
上传时间: 2014-11-29
上传用户:风之骄子
VB遥控播放器红外遥控解码 #include <regX52.h> #define c(x) (x*110592/120000) sbit Ir_Pin=P3^2 sbit beep=P2^1 //sbit RELAY=P2^0 #define INBUF_LEN 4 //数据长度 unsigned char inbuf1[INBUF_LEN]={ 0 , 0 , 0 , 0 } //发送缓冲区 unsigned char inbuf2[50] //接收缓冲区 unsigned char count3 void init_serialcomm( void ) { SCON = 0x50 //SCON: serail mode 1, 8-bit UART, enable ucvr T2CON=0x30 TH2=0x00 TL2=0x00 RCAP2H=0xFF RCAP2L=0xDC TR2=1 } //向串口发送一个字符 void send_char_com( unsigned char ch) { SBUF=ch while (TI== 0 ) TI= 0
标签: include 110592 120000 define
上传时间: 2013-12-21
上传用户:yph853211
是des的一种算法,被称为计数器模式(counter mode)
上传时间: 2014-11-27
上传用户:大三三
Vxworks 下的视频采集程序,该驱动程序是PCI类视频卡,测试程序为:test.cpp 通过初始化后,运行UTL_LVE("1.mpg",5,1),将视频文件保存为1.mpg。 其中1.mpg为文件名,5为时间秒,1为mode。
上传时间: 2017-01-29
上传用户:miaochun888
本例展示了如何利用外设TIM2来产生四路频率不同的信号。 TIM2时钟设置为36MHz,预分频设置为2,使用输出比较-翻转模式(Output Compare Toggle Mode)。 TIM2计数器时钟可表达为:TIM2 counter clock = TIMxCLK / (Prescaler +1) = 12 MHz 设置TIM2_CCR1寄存器值为32768,则CC1更新频率为TIM2计数器时钟频率除以CCR1寄存器值,为366.2 Hz。因此,TIM2通道1可产生一个频率为183.1 Hz的周期信号。 同理,根据寄存器TIM2_CCR2 、TIM2_CCR3和 TIM2_CCR4的值,TIM2通道2可产生一个频率为366.3 Hz的周期信号;TIM2通道3可产生一个频率为732.4 Hz的周期信号;TIM2通道4可产生一个频率为1464.8 Hz的周期信号。 可以通过示波器观察各路输出
上传时间: 2014-01-22
上传用户:plsee
FreeBREW is a collection of open source software for BREW. BREW Foundation Framework provides a multitasking-aware kernel which supports a layered, per-task and per-state event dispatching mechanism to enable robust, state-pattern programming in BREW
标签: BREW Foundation collection Framework
上传时间: 2017-02-07
上传用户:上善若水
Free open-source disk encryption software for Windows Vista/XP, Mac OS X, and Linux Main Features: * Creates a virtual encrypted disk within a file and mounts it as a real disk. * Encrypts an entire partition or storage device such as USB flash drive or hard drive. * Encrypts a partition or drive where Windows is installed (pre-boot authentication). * Encryption is automatic, real-time (on-the-fly) and transparent. * Provides two levels of plausible deniability, in case an adversary forces you to reveal the password: 1) Hidden volume (steganography) and hidden operating system. 2) No TrueCrypt volume can be identified (volumes cannot be distinguished from random data). * Encryption algorithms: AES-256, Serpent, and Twofish. Mode of operation: XTS. Further information regarding features of the software may be found in the:http://www.truecrypt.org/
标签: open-source encryption Features software
上传时间: 2013-12-20
上传用户:123啊
采用VHDL语言设计一个4通道的数据采集控制模块。系统的功能描述如下: 1.系统主时钟为100 MHz。 2.数据为16位-数据线上连续2次00FF后数据传输开始。 3.系统内部总线宽度为8位。 4.共有4个通道(ch1、ch2、ch3、ch4),每个通道配备100 Bytes的RAM,当存满数据后停止数据采集并且相应通道的状态位产生报警信号。 5.数据分为8位串行输出,输出时钟由外部数据读取电路给出。 6.具备显示模块驱动功能。由SEL信号设置显示的通道,DISPLAY信号启动所选通道RAM中数值的显示过程。数值顺次显示一遍后显示结束,可以重新设定SEL的值选择下一个通道。模块数据线为8位,显示器件为4个8段LED。 7.数据采集模式如下:单通道采集(由SEL信号选择通道),多通道顺次采集(当前通道采满后转入下一通道),多通道并行采集(每通道依次采集一个数据)。模式由控制信号MODE选择,采集数据的总个数由NUM_COLLECT给出。 8.数据采集过程中不能读取,数据读取过程中不能采集
上传时间: 2013-12-25
上传用户:zycidjl