DDS芯片9851的驱动程序~用来产生不同频率的正弦波波形~

该时钟以24小时制显示时间，并可显示2000年至2049年之间的任何日期及星期，日期与时间经按键可相互切换，可输入8个闹钟时间设置，每个闹钟设置包括响铃的时间（小时与分钟）、对工作日有效还是对周末有效的标志，以及本项设置是否启用的标志等三部分。这8个闹钟设置均保存在EEPROM中，即使掉电也不用重新输入。-The 24-hour clock to display time, and shows from 2000 to 2049 and any date between the weeks, the date and time as may be mutually switch button, enter the eight alarm time settings, each set including the ringing of an alarm clock Duration (hours and minutes), the effective working days or weekends effective road signs, as well as whether or not to enable this setting, such as a symbol of three parts. This 8 alarm settings are stored in EEPROM, even brown-out do not have to re-enter.

介绍了使用单片机产生音乐的方法，以及生日歌，祝你平安，八月桂花香的示例程序。-Introduce the use of single-chip generated music methods, and the birthday song, I wish you peace,八月桂花香sample procedures.

基于8051的高精度的秒表汇编程序，从0到60秒，有复位，暂停，累计功能。附加protues连接图-Based on the 8051 compilation of high-precision stopwatch program, from 0 to 60 seconds, a reset, pause, the cumulative function. Additional protues connection diagram

信号滤波，使用在AVR. 串口接收数据格式 0xFFFF+数据位。-Signal filtering, the use of the AVR. Serial receive data format 0xFFFF+ Data bit.

yright 2002 Cygnal Integrated Products, Inc. // // Filename: LIION_BC_MAIN.c // Target Device: 8051F300 // Created: 11 SEP 2002 // Created By: DKC // Tool chain: KEIL Eval C51 // // This is a stand alone battery charger for a Lithium ION battery. // It utilizes a buck converter, controlled by the on-chip 8-bit PWM, // to provide constant current followed by constant voltage battery charge.

这是一个控制两个步进电机的程序，可以作为小车的驱动电机程序，实现正、反转、转弯等功能-This is a stepper motor control of the two procedures can be used as the drive motor vehicle procedures, implementation is, reverse, turning and other functions

51单片机控制的电动自行车驱动系统源程序(CHUNTIAN) -51 microcomputer control drive system for electric bicycle source (CHUNTIAN)

mp3学习资料 对初学者很有帮助 内有原码和原理图-mp3 learning materials useful for beginners, there are the original code and schematic diagram

瑞士盛世瑞恩公司的温湿度传感器SHT11的温湿度测量的例子程序。- Swiss prosperous times auspicious graciousness company s warm humidity sensor SHT11 warm humidity survey example procedure.

关于51单片机的ucos-II操作系统移植论文，详细介绍简单操作系统的移植硬件知识和CPU结构知识及单片机软件编程技巧-About 51 MCU ucos-II operating system migration papers, details of a simple migration of hardware, operating system, CPU structure of knowledge and the knowledge and SCM software programming skills