用定时器和控制端口,定时扫描,实现多种流水效果

电话机的工作原理,有振铃电路,电话极性保护电路,还有双音多频发送接收电路-Telephone the working principle, has ringing circuit, Phone polarity protection circuit, as well as send DTMF receiver circuit

奉献：AT45DB041读写程序 [日期：2005-11-29] 来源：侃单片机 作者：etiller [字体：大 中 小] -Dedication: AT45DB041 read and write procedures [Date :2005-11-29] Sources: McCain Singlechip Author: etiller [Font: Xinhuanet]

这仅仅是一个用于演示ICCAVR中调用汇编语言中断函数的实例，这个演示的处理方法也可以用于一般非中断汇编函数的调用。本实例中演示了字节变量和字变量在汇编中的引用和运算处理-this is only a demo ICCAVR Calling assembly language interrupt function examples, the presentation approach also can be used for general non-interrupted compilation function call. This example demonstrates a variable byte characters and variables in the compilation of the application and processing operations

AT89c2051控制9200b发双音频码用8870解码并将BCD码返回AT89C2051,然后比较的源代码和Hex文件。-AT89c2051 Two-control 9200b audio decoder yards with 8,870 and will return to BCD AT89C2051, then compare the source code and Hex documents.

瑞萨智能车大赛源码。High-performance Embedded Workshop，是瑞萨H8系列单片机开发平台。本站上传菜单里没有默认这类开发环境-Renesas smart car contest source. High-performance Embedded Workshop, is the Renesas H8 series of single-chip development platform. From this site there is no default menu such development environment

电子密码锁，可以自己设置密码，C语言编写的-Electronic code lock, you can set up their own password, C language

液晶模块12864的c语言程序，调试可用。串行。串口。-LCD module 12864 of the c language programming, debugging can be used. Serial. Serial port.

这是一个智能钟的程序..我已编译过的..可以用有时分秒和定时等功能 -This is a smart 10-minute procedure .. I have compiled the .. can sometimes accurate and regular features

文件中包括：串口通讯程序，以及两个单片机通过串口通讯的程序。-Document include: serial port communication program, as well as two single-chip serial communication through the process.

这是单片机C51的各种代码包，包括：I2C应用程序、滚动码应用原程序、红外应用源程序集、用计算机并口模拟SPI通讯的C源程序-C51 microcontroller This is the code, including : I2C applications, rolling code original application procedures, Application of infrared source sets, computer simulation of SPI communications Parallel C source files, etc.