用于嵌入式系统的TCP/IP协议栈

基于ARM的任一波形发生器，可以有几种波形的产生。-some thing of ARM which can contain many waves

用em4094和STC12C5412合成二代证读写器，该文中有完全原理图和软件设计思路 -Synthesis of second generation with the em4094 and STC12C5412 card reader, the text has full schematics and software design ideas

PCI总线与USB总线之间的数据通信的用户端应用程序（包括界面和通信）-PCI bus and USB data communication between the client application (including interface and communications)

u-boot for sangsum smdk2440

这些都是常用的通信设备的电路原理图，很多是高频电子线路的--Circuit diagrams for some commonly used communication devices. Many are operated under high frequency.

主要讲了单片机实现数学计算器的功能，十分好。-Major topics of the MCU math calculator features, very well.

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

keil环境下编译,产生hex文件,通过EZ-USB Control Panel下载到USB芯片CY7C68013上运行-keil compiler environment, resulting hex file, through the EZ-USB Control Panel downloaded to run on USB chip CY7C68013

51系列单片机的数码管试验的C语言程序。-51 Series single-chip digital test tube C language program.

刚做的89C51驱动12864液晶显示字符＆汉字 刚做的89C51驱动12864液晶显示字符＆汉字-89C51 驱 test做cavity-hung 12864液Joinet显striped eyelashes callous callous Lok-mortem examination做cavity hung 89C51 驱 Joinet 12864液striped显eyelashes callous callous Lok-mortem