液位检测程序，可做到四级灵敏度，通过短路冒实现

linux设备驱动程序(中文第三版)源代码程序。

这是学习linux shell 脚本的基础教材，是学习linux的入门教程-This is a linux shell script based learning materials, introductory tutorial to learn linux

数码管及键盘管理--Manage digital tube and keyboard.

应用背景 使用fpga芯片ep4ce22c22c8n，使用桥驱动芯片驱动步进电机 关键技术使用l293驱动芯片来驱动步进电机。。module IR(clk_48m,reset,out_door,addr,data,data_rd,rd,rw,Grating_a,Grating_b);  input clk_48m,data_rd,reset,rd,rw,Grating_a,Grating_b; 

包含Silicon出品的F020教学实验机的所有源程序。代码书写规范可移植强。即使没有实验板，代码本身也有参考价值-The F020 includes Silicon Chupin teaching experiment all the source machine. Strong writing portable code specifications. Even without the test board, the code itself also has reference value

一本不错的数字图像处理书（冈萨雷斯中文版）总共有三个压缩文件需要放在一起解压缩-A good digital image processing book (Gonzalez Chinese version) a total of three files need to be extracted with

header file of the specific codes for LPC2100 target boards Every project should include a copy of this file, user may modify it as ne-header file of the specific codes for LPC21 00 target boards Every project should include a copy of this file, the user may modify it as ne

应用背景定时器是用来闪烁发光二极管的。每一次溢出，定时器产生一个中断，这是用来眨眼的。由于定时器的时钟由smclock（运行在约1MHz），8溢出数近似每0.5秒钟闪烁一次。 ；关键技术本示例使用定时器时钟从smclock。这个时钟是基于单片机的电流频率1MHz。在这种情况下，我们希望LED切换每0.5s。利用上述公式，我们可以计算出如何程序定时器。计数结果在524288，这是8倍65536。该定时器将产生一个溢出中断，并重置一次，它达到65536。因为我们要数到524288，之后每8溢出中断，LED将被切换的。

windows下接收usb转串口的工具，能够支持pxa270开发板！-windows to receive a tool for serial port usb switch, capable of supporting PXA270 development board!

s document describe davicom ic dm9000 DM9000_h.h . this ic can be used in the embedded systems and network lan cards. its is 10/100Mpbs ic.