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this document contains the tips and trick for UBUNTU 8.10. It deceibes the following procedures and tips used for Ubuntu 8.10: 1.Procedure to create and login as root from GUI page no. 2 2.Procedure to install ns­ 2 in ubuntu 8.10 page no. 2 3.Procedure to install VLC player in Ubuntu 8.10 page no. 6 4.Procedure to install Real player in Ubuntu 8.10 page no.7-this document contains the tips and trick for UBUNTU 8.10. It deceibes the following procedures and tips used for Ubuntu 8.10: 1.Procedure to create and login as root from GUI page no. 2 2.Procedure to install ns­ 2 in ubuntu 8.10 page no. 2 3.Procedure to install VLC player in Ubuntu 8.10 page no. 6 4.Procedure to install Real player in Ubuntu 8.10 page no.7

PID控制仿真程序 假设一个控制系统：10kg的水，使用最大1kW的电阻丝加热，简化计算，假设焦耳和卡的转化单位为1，而不是4.2加热效率为 Watt [瓦],散热效率为5*T [瓦]设定目标温度为60度， 则100000秒内的温度变化曲线是如何的？-PID control simulation program assumes that a control system: 10kg of water, using hot-filament maximum 1kW resistor to simplify the calculation, assuming the conversion of Joule and card unit of one, instead of 4.2 for heating efficiency Watt [W], thermal efficiency of 5* T [W] set a target temperature of 60 degrees, then the 100000 sec the temperature curve is how?

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共享记忆体是指同一块记忆体区段被一个以上的行程所分享。这是我们所知速度最快的行程间通讯方式。使用共享记忆体在使用多CPU的机器上，会使机器发挥较佳的效能。-shared memory is with a memory segment was more than one trip to share. We know this is the fastest means of communication between the itinerary. The use of shared memory in the use of multi-CPU machines, machines will play better efficiency.

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ISCSI target.It can be used to make up a IPSAN system.

本文研究论述了基于S3C2410 LCD控制器的Linux驱动程序设计与实现，介绍了S3C2410的LCD控制器的数据和控制管脚，并给出了LCD的控制流程和LCD的控制器设置规则，参照TFT-LCD LQ092Y3DG01的逻辑要求和时序要求设计了其驱动电路，设置了主要LCD寄存器；论述了在嵌入式Linux中基于FrameBuffer机制的LCD驱动程序的实现方法。主要研究了Linux帧缓冲设备驱动程序框架，详细分析了帧缓冲设备驱动程序层次结构、核心功能模块和数据结构，设计了FrameBuffer的处理机制以及底层驱动的接口函数针对具体的LCD面板如何在嵌入式Linux中编写帧缓冲设备的驱动程序。最后在FrameBuffer机制的基础上，基于三星公司S3C2410处理器的开发平台系统地开发了嵌入式Linux下的LCD显示驱动程序，实现了简单的嵌入式GUI图形API的设计，并在LQ092Y3DG01上显示了清晰稳定的图像和汉字。测试表明该驱动通用性好，能驱动大部分的LCD；可移植性强，经过少许修改即可应用在其他嵌入式系统中，是S3C2410驱动LCD的一套较佳的解决方案