tcp_ip中心协议栈的代码，主要用于嵌入式系统开发，已经刻不容缓。

pc端usb下载程序DNW的源代码，配合开发板usbd程序可以实现pc和开发板互通-usb client pc download the source code of DNW, with the development board can USBD pc and realize mutual development board

320X240液晶控制 dsfasfdsaf-LCD 320X240agadgagagggg

c8051f020的I2C程序，已经通过调试-c8051f020 the I2C procedures have been adopted to debug

3*4键盘扫描程序 已加消抖功能 可以扩展为4*4~~~ 只用8个I/O口就能实现-3* 4 keypad scanner Buffeting extinction have been added functions can be extended to 4* 4 ~ ~ ~ only eight I/O port will be able to realize

单片机FM收音机芯片（cs1100）程序 -Single-chip FM radio chip (cs1100) procedures

两个点的线性插值定点数算法 说明：1、基本公式 y=( y2-y1 ) ( x-x1 ) / ( x2-x1 ) + y1 2、根据直线斜率的正负、内插外插的不同，分为6种情况。 3.参见文件夹中的“插值算法的6种情况”一图。-two points of linear interpolation algorithm for determining points : one, the basic formula y = (y2- y1) (x-x)/(x2- x1) y1 2, according to the slope of the linear positive and negative, interpolation, extrapolation of different, divided into six kinds of situations. 3. See folder "interpolation algorithm for the six species of" a map.

单片机的数字时钟例程,定义运行状态,可以调整倒计时分,小时调整等.-SCM digital clock routines, the definition of operations, the countdown can be adjusted, such as the adjustment hour.

4-20MA信号发生器，含电路图，使用说明以及汇编源程序-4-20MA signal generator, including schematics, source code for use as well as the compilation

总测试程序，不仅可以测定其转速的信息，而且可以用于测定其报警信息的内容。可联合以上的程序进行调试。-The total test procedure can not only determine his speed information, but can be used for the determination of the contents of its report to the police information. The above procedures can be combined for debugging.

这是一个车用电机调速器的AVR单片机的整套C语言的源代码，实用工程。-This is a motor vehicle s AVR MCU package of C language source code, and practical engineering.