数字频率合成器DDS9851控制系统的单片机源代码，键盘输入频率，液晶显示，并实时输出所需频率，该系统可选择输出方波和正弦波。...

C51汇编必做试验7 -- 通过串行口与PC机通信（上位机控制的必备）-C51 compilation of tests must be done 7- through the serial port with the PC, communications (Host Computer Control Essential)

一个凌阳DA转换程序可以产生正弦波，三角波-Sunplus a DA conversion process can produce sine wave, triangle wave

准确，快速，方便地获得温度在现代企事业单位，厂房车间和家庭中有着越来越重要的意义。本文设计了一套基于MSC51单片机的温度采集系统。应用该系统可以即时、准确地获得两路温度参数（可扩展至256路），测温范围达0~125C，参数精确至0.25C，并可以现场控制欲采集的指定传感器的温度参数，通过数码管显示出来，通过RS232接口可连接至计算机，并通过监控软件观察实时数据和波形。该系统具有易扩展、精度高、成本低等特点，适宜现场监控，实验室，家庭等对温度有要求的场所。-Accurate, rapid and easy access to the temperature in the modern enterprises, plant has a home workshop and more and more important. This article has designed a single chip MSC51-based temperature acquisition system. Application of the system can be immediate, accurate access to two temperature parameters (can be expanded to 256 road), temperature range of 0 ~ 125C, precise parameters to 0.25C, and can be collected at the scene To control the temperature of the sensor parameters specified by the digital tube shown through RS232 interface can be connected to the computer and monitoring software through real-time data and waveform observation. The system is easy to expand with high precision, low cost, and suitable for field monitoring, laboratory, on the home

基于51的动态内存管理-dynamic memory management

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

近来自己做了温度计,MCU芯片是51的, 温度芯片是DS18B20,显示屏是3310.-Recently own a thermometer, MCU chip is 51, temperature chip DS18B20, the screen is 3310.

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这是一个系列的单片机实验例子，有流水灯、数码管显示、行列式键盘、串口通信、系统功能等内容，是单片机初学者的最佳学习内容

单片机子程序 对初学者的课程设计应该会有些帮助^o^-SCM subroutine for beginners courses should be designed to be helpful ^ o ^

自己写的1621驱动程序（绝对可以用的，针对NEC单片机的）-Write your own 1621 driver (certainly we can use for NEC MCU)