一个变频器的代码,用msp430就能实现.低成本,可靠性也不错.

周立功单片机DP51+程序-weeks meritorious SCM DP51 procedures

STC单片机的在线下载功能的ISP原代码-STC MCU ISP online download function of the original code

Why your source code are not be used? 1.The content is too simple 2.Is not a sourcecode or document 3.lack of files 4.Directory or platform is not correct selected 5.Description is not detailed 6.Compressed file has password 7.Sourcecode duplicate or already exist

64位键盘扫描程序，调试通过。51系统，keil-51编写-64 keyboard scanner, debugging through. 51 system, keil-51 preparation

用 PIC16F73 做的温控器,压缩包中有硬件排版图、原程序、还有编译好的 HEX 文件。-PIC16F73 do with the temperature control device, compressed packages of hardware layout map, the original procedure, compiled HEX file.

在做项目（工程）的时候，我们经常要用到比较多的按键，而且IO 资源紧张， 于是我们就想方设法地在别的模块中节省IO 口，好不容易挤出一两个IO 口，却 发现仍然不够用，实在没办法了就添加一个IC 来扫键。一个IC 虽然价格不高， 但对于大批量生产而且产品利润低的厂家来说，这是一笔不菲的开支! 那，我们能不能想到比较好的扫键方法：用最少的IO 口，扫最多的键？可以吗？-Doing the project (engineering), we often use the relatively large number of keys, and the IO resource constraints, so we are trying to save in another module IO ports, finally out of one or two IO ports, only to find is still not enough there is really no other way to add an IC to sweep on the keys. Although the price of an IC is not high, but low profits, high-volume production and product manufacturers, this is spending a lot of money! That, we can not think of a better scan key method: with a minimum of IO ports, scan Most of the keys? OK?

单片机音乐播放程序，附带三首已编音乐代码，音乐调声可调-Singlechip music player program, three have been incidental music code, music, acoustic tune adjustable

使用51单片机用算法的方式来产生SPWM的程序-Use 51 MCU way to use the algorithm to generate SPWM program

用于串口数据的监视，对于想要通过串口开发程序的朋友一定很有帮助。-Serial data for surveillance, for want through the serial development process will certainly be helpful friend.

该模拟器是在Keil7.0中使用。 只要把Ex02Dll.dll复制到 X:KeilC51BIN目录下。 打开测试程序，编译运行即可看到如图led.jpg中所显示的效果。-The simulator is used in Keil7.0. As long as Ex02Dll.dll copied to the X : Keil C51 BIN directory. Open test procedure, compile operation can be seen in figure led.jpg reflected by the results.