用8051开发usb的程序练习，对于初学者来说可以有需多的帮助

PCB设计指导-8--PCB design guide- 8.

开发SD卡的必备资料,希望大家喜欢--Useful materials for developing SD card.

RTD2525L 源程序，支持DDC，DDCCI，含DDCCI 源程序。含二个 OSD-RTD2525L source code，support DDC，DDCCI，include DDCCI source code & Two OSD source code

AT89c51等单片机可以使用的4*4 键盘程序-AT89C51 single-chip microcomputer can be used, such as 4* 4 keyboard procedures

NET-DL 套件由日立SH7750处理 器、32M SDRAM 以及8M 的FLASH为用户的软件研发提供了足够的空间。板上提供非常 丰富的外设接口：一个10M/100M 自适应快速以太网接口、两个RS-232 串口、一个JTAG调 试口以及若干个基于PIO的指示灯。系统具有体积小、耗电低、处理能力强、网络功能强大 等特点，能够装载和运行嵌入式Linux 操作系统-NET-DL Boards Hitachi SH7750 processor, 32MB of SDRAM and 8MB of Flash users to the software development provides adequate space. Board with a very rich set of peripherals : a 10M/100M Adaptive Fast Ethernet interface, two RS-232 serial ports, a JTAG Debugging mouth and a number of lights on the PIO. Systems with small size, low power consumption, processing power and networking capabilities such as powerful features, capable of carrying and running embedded Linux

用51控制对401的收发程序，简单实用-401 with 51 of the transceiver control procedures, simple and practical. . . .

纠正网上流传的绝大多数错误的硬盘安装方法，这是本人经验的结晶，可以节省您许多时间。-To correct the vast majority of Internet spread the error of hard disk installation method, which is the crystallization of my experience, I can save you a lot of time.

Ecap捕获pwm是一种适用于交流泵和电机逆变器的pwm波形编程。

mcs51汇编子程序-mcs51 compiled subprogram

ＣＰＬＤ　　一个简单程序 希望大家喜欢-CPLD a simple procedure hope you like