在p1.0上产生一个占空比变化的脉冲信号，它产生的脉宽调制信号用于电机的变速控制...

这是一个单片机键盘响应程序，主要用于单片机设计中对键盘的编程，使得单片机能够显示键盘的按键-This is a microcontroller keyboard response procedures, mainly for the design of single-chip microcomputer keyboard programming, SCM makes the keyboard can display buttons

根据公版自己做的usbasp板，添加了usbcdc。-According to the public version of their own to do usbasp board, added usbcdc.

使用8031单片机加载FPGA的源代码,为FPGA的加载提供了另一种方便的方法.-use FPGA 8031 load the source code for the FPGA loaded provide another convenient way.

x5045的程序，可以在keil c51上运行，希望能给大家带来帮助-X5045 procedures keil c51 can run, I hope everyone can help

此程序为单片机编程，主要实现无线收发功能，所使用的无线芯片为PTR4000。-This procedure for single-chip programming, the main function of wireless transceivers used for wireless chips PTR4000.

红外线遥控的相关代码及主控芯片的参考资料-Infrared remote control code and master the relevant reference chip

语音芯片PM50八方源代码，在播音函数中写入你需要播音的例子即可播放对应的语音。-voice chip PM50 from all source code, the audio function you need to write radio broadcast of examples corresponding voice.

很好的AT89C2051的中文说明书 费了很大劲才找到的-AT89C2051 good Chinese manual costs a lot劲才found

压力传感器PDF文档，开发按摩系统必备资料-Pressure sensors PDF document, essential information on the development of massage system

PIC1687X单片机,LCD12232汉显,所有数据存于片内FLAISH中,断电保持,硬件调试通过-PIC1687X microcontroller, a LCD12232 Han, All data stored in chip FLAISH, maintain power outages, hardware debugging through