51单片机音乐播放文件

cmx868的应用程序 用于电话机的缴费终端的设计 经过调试 可以应用欢迎大家下载 (cmx868 application fee for the telephone terminal can be applied to the design after debugging welcome you to download)

elcirc三维环流模型，可以计算河流、河口、海洋、湖库等水流、温度、盐度输移(ELCIRC is an unstructured-grid model designed for the effective simulation of 3D baroclinic circulation across river-to-ocean scales. It uses a finite-volume/finite-difference Eulerian-Lagrangian algorithm to solve the shallow water equations, written to realistically address a wide range of physical processes and of atmospheric, ocean and river forcings. The numerical algorithm is low-order, but volume conservative, stable and computationally efficient. It also naturally incorporates wetting and drying of tidal flats. While originally developed to meet specific modeling challenges for the Columbia River, ELCIRC has been extensively tested against standard ocean/coastal benchmarks, and is starting to be applied to estuaries and continental shelves around the world.)

基于CS5460A和AT89S52的单相电功率测量仪的设计，并用ZLG7289实现数码管的驱动。资料为单相电功率测量仪源代码。(CS5460A and AT89S52-based single-phase electric power meter design, and implementation of digital control ZLG7289 driver. Information for the single-phase electric power measuring instrument the source code.)

DOS下RS485通信编程部分程序，主要是为了让人了解这种编程思想。(RS485 communication programming under DOS Part of the procedure, mainly in order to make people aware of this programming ideas.)

说明：  能实现对方波频率进行采集，能够采集低频到100K左右的方波(It can collect square wave frequencies from low frequency to about 100K.)

说明：  简单实现呼吸灯功能，希望能帮到有需要的人，也希望各个大佬纠错(Simple realization of breathing lamp function)

这是一个用51单片机系统仿真ucosii工作的protues电路 本系统包括扩展64k RAM的单片机系统和杨屹移植到51单片机的ucosii 系统 使用方法： 1.安装Protues7.4版，然后用protues打开protues 8051 simulation 文件夹 中的extern ram.DSN 文件 2.打开extern ram.DSN 后，双击单片机在弹出的窗口中的Program File 选项 中选择yy.hex文件。 (yy.hex其实就是yy文件夹中keil文档编译出来的hex文 件，yy文件夹是杨屹的ucos51 系统，用keil 2 可以打开) 3.在Clock Frequency选项中输入22.184M(杨屹的ucos51 用的是22.184M hz的单片机频率) 4.双击VTERM串口调试显示屏，在Baud Rate 选项中选择19200的波特率 5.保存，点击运行就可以看到经典的hello world 了。 (1. Protues7.4 version installed, and then open the protues folder protues 8051 simulation The extern ram.DSN file 2. Open extern ram.DSN, double-click the pop-up window of SCM in the Program File option, select yy.hex file. (yy.hex actually yy folder keil out of the document compiled hex files, yy folder is Yang Yi s ucos51 system, using keil 2 Can open) 3. In the Clock Frequency option to enter 22.184M (Yang Yi of the ucos51 using a microcontroller 22.184M hz frequency) 4. Double-click VTERM serial debug display, in the Baud Rate select 19200 baud rate options 5. Save, click Run you can see the classic hello world)

STM32点阵屏静态显示源码,实现基本的点阵屏显示功能(STM32 lattice screen static display source code, to achieve the basic dot matrix screen display function)

很强的射频卡reader源代码，支持ISO14443A、ISO14443B等卡片，支持Mifare卡，desfire 4卡，内嵌入3DES算法(A strong source of RF card reader, support ISO14443A, ISO14443B such as card, Mifare card support, desfire 4 cards, embedded 3DES algorithm)

一个单片机应用的代码，可实现基于单片机的温度数码管显示，经验证可编译通过并实现(A microcontroller application code, enabling microcontroller-based digital temperature display, proven to compile and implement)