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从PCI一直讲到PCI EXPRESS的文章，对于理解PCI-E的发展历程很有帮助-PCI has been mentioned from the article, PCI EXPRESS, PCI-E for understanding the development process very helpful

Pocket PC系统开发程序， 1、可实现重启系统 2、获取系统内部的基本信息 3、使喇叭发出固定频率的声音-Pocket PC system development process, one can realize reboot the system 2, to obtain basic information system 3, so that the issue of fixed-frequency speaker

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lpc932芯片 用于modbus通讯的范例-c51 source code for modbus ,lpc932 mcu

12864液晶驱动库下实现的菜单程序，包括画图，反白的函数，结构体和函数指针实现菜单的转换。-12864 LCD driver library to achieve the menu under the procedures, including drawing, anti-white function, structure and function pointers to achieve the menu conversion.

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* 功能：DP_51PRO实验仪图形液晶显示实验。在屏幕上半部分显示一幅图片 * 在屏幕下半部分显示“重庆科技学院”等 -* Function: DP_51PRO experimental instrument experimental graphic liquid crystal display. Half of the screen shows a picture* in the second half of the screen shows

运用数控机床上的逐点比较插补算法来实现悬挂物体控制系统的画图要求-use of CNC machine tools-by-point comparison of interpolation algorithm to achieve flag objects of the class control system requirements

清华嵌入式系统作业，lpc2124+lcd+串口+ucos-Tsinghua embedded system operation, lpc2124+ lcd+ Serial+ ucos

The PCF7991AT is a fully integrated Advanced Basestation IC, ABIC, designed for car immobilizer systems providing read and write access to an identification transponder. The device is intended for use with the NXP transponder family (PCF79xx) as well as other transponder types operating at 125 kHz and employing ASK, Amplitude Shift Keying for write and AM/PM for the read operation. The receiver characteristics (amplifier gain,filter cutoff frequencies) can be optimized to system and transponder requirements. The PCF7991AT IC is designed for easy integration into immobilizer read/write and read-only systems featuring a high degree of integration and very low external component count. The device integrates a powerful antenna driver/modulator, a low-noise adaptive sampling time demodulator, programmable filters/amplifier and digitizer, required to design high-performance basestations. A three wire microcontroller interface is provided for programming the PCF7991AT as well as for th