This procedure is the use of ARM7 control of two

单片机程序，计算开关次数并保存次数，并能调用显示时间，清除纪录。-Single-chip process, calculating the number and save the number of switches, and can call the show time to clear the record.

Verilog实现的DDS正弦信号发生器和测频测相模块，DDS模块可产生两路频率和相位差均可预置调整的值正弦波，频率范围为20Hz-5MHz，相位范围为0°-359°，测量的数据通过引脚传输给单片机，单片机进行计算和显示。-Verilog realize the DDS sine wave signal generator and frequency measurement module test phase, DDS module can generate both frequency and phase difference can be preset to adjust the value of sine wave, frequency range of 20Hz-5MHz, phase range of 0 °-359 ° , measurement data and transmit them to the single-chip pin, single-chip microcomputer to calculate and display.

C51单片机中文介绍-C51 microcontroller introduce Chinese

这是一个在proteus软件上仿真的例子。对学习proteus这个软件具有很好的了解。-This is a software simulation in proteus example. Proteus in learning this software has a very good understanding.

低电压检测. A口低8位接键盘列线，键盘行线接VDDIO；B口高8位接LED // 按K1键 低电压为2.4v // 按K2键 低电压2.8v // 按K3键 低电压3.2v // 按K4键 低电压为3.6v

自制MP3硬盘播放器，含电路图（DDB）以，源代码及使用说明-Self-made hard drive MP3 players, including circuit diagrams (DDB) to, source code and use

LCD 0108驱动程序 -LCD Driver for LCD 0,108 0,108 0,108 LCD Driver for LCD Driver 0108 Driver

主要讲了单片机是实现仿真国际象棋的功能。十分好。-Major topics of the microcontroller is to achieve simulation chess functions. Very well.

这是一个简单的mcs-51中断，使得P0口的8个LED灯轮流亮。-This is a simple interruption of mcs-51, making P0 port 8 bright LED lights alternately.

师哥们做的单片机键盘、液晶显示程序，汇编语言，函数算法很清晰-Division buddies to do the single-chip microcomputer keyboard, LCD process, assembly language, function algorithm is clear