在电话上用单片机来实现电话报警系统

电子秒表的设计 1、用系统8253定时器提供的55ms定时单位，设计秒表定时程序。 2、有关系统定时方法： PC机系统中的8253定时器0工作于方式3，外部提供一个时钟作为CLK信号, 频率：f=1.1931816MHz。 定时器0输出方波的频率:fout=1.1931816/65536=18.2Hz。 输出方波的周期Tout=1/18.2=54.945ms。8253A每隔55ms引起一次中断-Electronic stopwatch design one, using the system timer 8253 provides 55ms timing units, design stopwatch timing procedures. 2, the system timing method: PC system timer 0 of 8253 working in the way of 3, to provide an external clock as the CLK signal, the frequency: f = 1.1931816MHz. Timer 0 output square wave frequency: fout = 1.1931816/65536 = 18.2Hz. Cycle square wave output Tout = 1/18.2 = 54.945ms. 8253A every 55ms caused a disruption

本文详细系统地介绍了uC/OS-II 在51 单片机上的移植、重入实现方法、硬件仿真、固化、人机界面等关键内容。-paper detailed and systematic introduction of the Phone/OS-II in 51 MCU transplant and re-entry method, hardware simulation, curing, the man-machine interface and other key elements.

一款非常实用LCD16*2 液晶程序(时钟程序).仅供大家学习参考用-LCD16* 2 LCD (clock procedures). We only used to learning

时钟芯片ds1302 程序 源程序按版本号放在文件夹中。里面有在Protues中仿真的DSN文件。 打开MPLAB的MCP文件进行编译 将DSN文件载入Protues中 将生成的HEX导入到Protues中的16F84A中　-> RUN-Clock chip DS1302 procedures in accordance with the version number on the source folder. Protues there are in the DSN file in the simulation. Open the MPLAB compiler of the MCP file DSN file loading will be generated by HEX will Protues into Protues in 16F84A in-

C51写的串口编程的范例，供正在开发串口的兄弟可以参考！-C51 write serial programming model for the serial port is being developed can refer brothers!

使用LPT口，模拟IIC，界面友好，使用方便，不失为一个硬件调试的好帮手！ 亦可透过IIC实现双机互连，因为IIC支持主从模式:-)-LPT I used to simulate IIC, friendly interface and ease of use, hardware debugging is a good helper! Through dual-IIC interconnection, as IIC support from the main mode :-)

该代码是在凌阳单片机上实现Tcp/IP协议的代码。通过它可以让单片机接入互联网。-the code is in Sunplus SCM achieve TCP/IP protocol code. Through its SCM can allow access to the Internet.

基于TI的MSP430的方面的相关的软件和MSP430的相关的资料.-based on TI"s MSP430 aspects of the software and MSP430 relevant information.

串行DA，MAX549PDF及汇编原程序，测试成功。51控制。-serial DA, and the compilation of the original MAX549PDF procedure, tested successfully. 51 control.

本程序是实现51单片机与单片机之间的串行通信（UART）-communicate between 51 single controler