SCM procedures performed music

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.

单片机的C语言应用程序设计,相信对学习单片机的朋友有一定的帮助-SCM C language application programming, I believe the study SCM friends can help

使用国产CH341A芯片实现USB转串口，完全兼容AVR JTAGICE，可以自动升级。 支持芯片: ATmega16(L), ATmega162(L), ATmega169(L or V), ATmega32(L), ATmega323(L), ATmega64(L), ATmega128(L). 原理图还附加了RS232接口，可以方便用户自主选择串口或USB下载程序。 还附加有可自动升级的HEX文件-The use of domestically produced CH341A chip USB to serial port, fully compatible with the AVR JTAGICE, can be automatically upgraded. Support chips: ATmega16 (L), ATmega162 (L), ATmega169 (L or V), ATmega32 (L), ATmega323 (L), ATmega64 (L), ATmega128 (L). Schematics also added a RS232 interface, can easily users to choose the serial or USB download. Additional there is also automatically upgrade the HEX file

麦迪工作室51单片机开发板键盘的驱动代码。设计了抬键监听机制，防止一次按键多次触发。-Madison Studio 51 MCU development board keyboard-driven code. Designed to raise key monitoring mechanism to prevent a key trigger several times.

在keil c51 环境下利用中断方式查询 键盘并实现键值查询等功能-Keil c51 environment in the use of the keyboard interrupt inquiries and realize the functions of key inquiries

另外一个RC531非接触式读卡器的全部源代码，实现全部功能-another RC531 non-contact reader the full source code, to achieve full functionality

提供了一个简单的KEIL C51工程模板，包含最基本的函数以及宏定义，简化KEIL C51开发过程。-Provides a simple template KEIL C51 project, including the most basic function and macro definitions, to simplify the development process KEIL C51.

ds1302的单片机程序实现，适用51的时钟芯片-ds1302 the SCM program, the application of 51 clock chips

KeilC51编程,51与DDS芯片 AD9850的接口程序.包括对DDS的初始化以及输出控制.-KeilC51 programming, and 51 AD9850 interface program. DDS including initialization and output control.

飞思卡尔单片机MC9SDG128B的计数器源程序，用于速度测量中脉冲个数统计，可以实现速度测量，路程测量等。-Freescale" s single-chip counters MC9SDG128B source for the pulse velocity measurement in the number of statistics, can achieve the speed measurement, distance measurement.