用来做键盘和显示的芯片7279的源代码，用C编的

一个简单的利用查表法的反正切和正、余弦函数，在处理速度不快的单片机编程中，这是一个使用的方法。-The use of a simple arctangent look-up table method and positive, cosine function, the processing speed of microcontroller programming unpleasant, this is a method used.

St7920串口驱动12864 KeilV51很实用

nRF2401调试代码,主要用语nRF2401无线通信模块设计-nRF2401 debugging code, the principal terms of wireless communication module design nRF2401

车载DVD osdIC TW8816原厂代码-Car DVD osdIC TW8816 original code

pic16f629 与18B20 温度程序 -pic16f629 temperature process with 18B20

ICCAVR用户指南,ICCAVR编程手册-ICCAVR user guide ICCAVR Programming Manual

用c语言实现PID算法的程序，在PID算法的使用过程中十分有用，只要自己修改一下参数，即可用于不同的控制领域。-Used to achieve PID algorithm c language procedure, use of the PID algorithm process very useful, as long as their own tinkering parameters, can be used for different control.

单片机上网所使用的精简协议栈，包括TCPIP,ICMP等。-Single-chip used in the Internet to streamline the protocol stack, including the TCP IP, ICMP and so on.

一个电子产品开发时的部分c代码B!绝对能用!-When an electronic product development part of c code B! Absolutely can!

* 功能：运行WDT，并控制数码管D1显示输出。程序开始先对数码管D1全闪烁控制，并进行喂 * 狗处理；然后显示 - ，并进入死循环，等待WDT复位。-* Function: Run WDT, and control D1 digital tube display. The beginning of the proceedings of the first all-digital pipe D1 flicker control, and deal with dog-feeding* then display- and to enter the infinite loop, waiting for WDT reset.