使用软件仿真usb接口的一个程序,十分精炼,要求计算每一个指令的运行时间,很值得品味...

此程序实现"看门狗"WDT的功能*/此程序实现"看门狗"WDT的功能*/

51单片机编写的DDS的串行驱动之类的c语言程序，可以产生波形。-51 single-chip DDS prepared by serial driver like c language program, can generate waveforms.

常用元件汇总，包括：1N系列二极管、74系列、4000与4500、变容二极管参数、常用二极管、常用芯片、场效应管性能、光电器件、横流二极管、快恢复二极管、三极管等-Summary of commonly used components, including: 1N series of diodes, 74 series, 4000 and 4500, Varactor parameters, commonly used diodes, commonly used chip FET performance, optoelectronic devices, cross-flow diodes, fast recovery diodes, transistors, etc.

AD977acn的应用电路及源码，使用凌阳的IDE编写的源码，提供底层的驱动。-AD977acn circuit and the application source code, the use of Sunplus IDE prepared by the source. for the bottom of the drive.

8MHz，FLL+自动校准。

利用51单片机演奏音乐。定时器控制歌曲的频率（音调），延时时间控制节拍，可以轻松更改为自己想要的歌曲-The use of 51 single-chip music. Timer control of song frequency (pitch), delay time to control the beat, you can easily change the songs you want

AVR m16的开发板，本人制作。有Protel99的原理图和PCB图。可根据个人需要修改。-AVR m16 development board, I produced. There Protel99 the schematic diagram and PCB Fig. Can be based on individual needs to be revised.

LPC900 FLASH单片机DTMF发送演示实例-LPC900 FLASH examples of single-chip DTMF send demo

关于AD采样的MCS51源程序，很有价值借鉴-AD sampling on MCS51 source, a valuable reference

RS422 RS485技术标准-RS422 RS485 technical standards