I2c的通信协议 主控端。 没有写从端。不好意思

基于NXP51单片机LPC932电子时钟的设计（致远公司学生用开发板）-LPC932 Singlechip NXP51 based on the design of the electronic clock (TOWIN company for student development board)

单片机驱动IDE硬盘的C程序-SCM IDE hard drive C Program

pc与51单片机的快速串行通信程序。开发环境KeilC-pc with 51 single-chip fast serial communication program. Development environment KeilC

一些常用的c51源码，编程时可以参考。-some frequently used source decoder, the reference can be programmed.

用增强型单片机51RD2做的控制器，功能包括驱动320*620的LCD，AD/DA采集，键盘采集，微型打印机接口，多CPU通信，ISP在线远程下载等。-with enhanced microcontroller 51RD2 do controller, Driver features include 320* 620 LCD, AD/DA acquisition, keyboard acquisition, micro-printer interface, Multi-CPU communications, remote ISP online downloads.

这是一个关于秒表倒计时的程序，写的很经典，拿来就可以用-It is a countdown on the stopwatch program, written in a very classic, brought can use

现场总线PROFIBUS技术发展现状.rar-Profibus fieldbus technology development status. Rar

文介绍一种用单片机普通I/O 口实现串行通信的方法，可在单片机的最小应用系统中实现与两个以上串行接口设备的多机通信。附有电路图和源代码。-text introduces a microcontroller I/O port serial communications, in the smallest single-chip microcomputer application system to achieve more with two serial interfaces of multi-machine communication. With circuit and the source code.

控制电机运动的G代码程序,如果对G代码不清楚,请先看懂G代码,然后再看本程序.-Control motor movement, G code program, if the G code is not clear, please understand G code, and then look at the procedures.

4*4矩阵键盘（行扫描法） （S51环境）-4* 4 matrix keyboard (line scanning) (S51 environment)