有一个单片机的振荡信号，可以用这个工具来实现频率F。

在51单片机系统中实现CRC校验的方法，以及CRC校验的原理-51 single-chip microcomputer system in the realization of the CRC checksum, as well as the principles of CRC Checksum

TLC2543实时时钟芯片的读取程序，采用AVR单片机读取，并附上芯片的Datasheet。-TLC2543 real-time clock chip reader, using AVR read, accompanied Chip Datasheet.

单片机红外通信的一些原理和原代码， 可使用在各种仪表中-SCM infrared communication theory and some of the original code can be used in various Instrument

DS18B20各种应用的C51程序大全,包含各种范例-A wide range of applications DS18B20 Guinness C51 procedures, including various examples of

c51单片机与ＰＣ间的串口 通信驱动程序-C51 MCU and PC serial communication between the driver

一个用AVR 单片机开发的工程实例，应该对同行有很大帮助-A single-chip with AVR development project examples, it should be of great help to peer

利用ps2键盘向单片机输入数据，这样做不仅可以减少输入输出口，而且程序代码短小精悍，可以极大的提高单片机的执行效率．-Ps2 keyboard to use single-chip input data, to do so not only can reduce the input and output port, and program code dapper, you can greatly improve efficiency in the implementation of SCM.

CF8051F040开发板的 flash_download程序-CF8051F040 development board

利用单片机AT89S51与adc0809设计一个数字电压表，能够测量0－5V之间的直流电压值，四位数码显示，但要求使用的元器件数目最少-AT89S51 with adc0809 use of single-chip design of a digital voltage meter, capable of measuring between 0-5V DC voltage value, four digital display, but requires the use of minimum number of components

触摸屏芯片ads7846ads7843驱动程序(C语言编写），单片机控制的触摸屏驱动程序（C编写）-Touchscreen chip ads7846ads7843 Driver (C language), SCM control Touchscreen Driver (C preparation)