LCD1602程序（EE21学习板演示程序）

实时时钟芯片DS1302采用串行接口，只需3根引脚便可以完成操作，其使用非常方便。这里采用AT89S52单片机作为外部微处理器，来对DS1302进行控制-Real-time clock chip DS1302 serial interface, only three pins will be able to complete the operation, its use very convenient. AT89S52 microcontroller used here as an external microprocessor to control of the DS1302

pcf8563是一种实时的日历时钟芯片，它解决了计时的千年问题。-pcf8563 a real-time clock chip calendar, it has resolved a time of the Millennium problems.

8051f02x 单片机的实用排序子程序。-Singlechip 8051f02x practical sort subroutine.

民航二所单片机驱动开发-CAD 2 Microprocessor Development

点焊机控制器C51源码+SCH & DDB-spot welding machine controller C51 source SCH DDB

单片机红外遥控试用程序，红外接收头测试烧写文件。-Single-chip infrared remote control trial procedures, the first test infrared receiver programmer documentation.

RS-485接口具有较强的抗干扰性，数据传输的距离较远，在一些应用中常常需要把RS-232标准的信号转换为RS-485的标准信号进传输。图中所示电路允许数据在RS-232/RS-485这两个不兼容的串行数据接口间传递。传输速度为480波特时，传输距离可达1750米。图中双RS-232收发器IC1将主机(PC)输出的RS-232电平转换为TTL电平，驱动高速RS-485收发器IC2 的输入，倒相器使IC2、IC3在受到起始位时被激活。-RS-485 trying to lay all the thoroughly bleed at the nose picking up the birthday 扰 fern cavity 强 ， Chu Huai basin cavity beat escapement for the birthday candle远Now ， Which instance, using Beckmannia中

AVR单片机，mega16开发板，一些小程序，裸捐了。-AVR single-chip, mega16 development board, a number of small procedures, nude donated.

基于AT89S52单片机的电子万年历设计制作的汇编程序-AT89S52-based single-chip design of the electronic calendar of the assembler