keil 的简明教程 如何建立工程，编译，仿真，下载。

0832设计的波形发生器 DAC0832proteus-a

用VB实现USB功能，主要是通过调用EasyD12.dll动态连接库函数,控制USBU端对 DP-51学习板24WC02时行读写控制。-VB USB functions, mainly through call EasyD12.dll DLL function, USBU-right control of DP-51 learning at the plate WC02 24 firms control read and write.

16F873数字钟程序 -16F873 digital clock procedures 16F873 digital clock procedures

驱动t6963系列的液晶显示器，能显示汉字文本和图形-Driver t6963 series LCD, can display text and graphics characters

利用LS273译码器并结合8255a和8259编写的电梯控制器程序-Use LS273 decoder 8255a and 8259 prepared in conjunction with the elevator control program

这是一个倒计时器，有点缺陷，需要改进，因为我是一个初学者-This is a countdown device, a little flaw, the need to improve, because I am a beginner

暑假做的英文版个人消费系统，希望大家喜欢-The English version of summer vacation to do personal consumption systems, I hope everyone likes

LED数码管制作数字钟，一键控制，多种调试，方便快捷-The production of LED digital tube digital clock, one button control, a variety of debugging, convenient and quick

用8251a实现串行口异步通信，自发自收，波特率1200bps，采用查询方式发送，中断方式接受。自收结果显示于屏幕。按esc返回dos -8251a Serial port with asynchronous communication, spontaneous self-income, the baud rate 1200bps, using queries sent, interrupt to receive treatment. Since the close results showed on the screen. Press esc to return dos