串口通讯大权，介绍了RS232，RS422，RS485等串行通讯的协议，规范，具体说明等。帮助你写好串口同学...

关于keil 51 和protues的仿真练习源代码，主要练习如何用protues和keil51进行联合仿真。-About keil 51 and protues simulation exercises the source code, the main practice how to use protues and keil51 joint simulation.

成绩等级,求最小数,从0-100中找两个数，使其和与差为平方数,求1-50整除3的数,购书优惠-Performance rating, and the smallest number from 0-100 in the two to find a few to make it worse for the square and the number divisible by 3 for a number of 1-50, book discount

关于PPP点对点协议的一些详细资料-PPP point-to-point agreement on some of the detailed information

水声原理第三版,对声声的原理及处理方法有详细的讲解，是一本值得看的，水下声学方面的资料-third edition of acoustic principles, the principle of sound and handling methods in detail, is a worthy read. underwater acoustics of information

这是Adobe公司发布的PhotoShop 6.0 SDK开发包，可对PS进行二次开发。其中也含有大量关于PS的内部资料，很有参考价值。（-This is the Adobe company released PhotoShop 6.0 SDK development kit can be carried out on the secondary development of PS. Which also contains a lot of internal information on the PS, could very well refer. (

Vision and mind ebook for percepction

介绍USB的经典文章。非常值得一看，系USB开发大牛frank_wang所做-introduced USB classic article. Is an eye-catcher, is the development of the great cattle USB done frank_wang

里面有几个用C语言画图的程序，非常实用，可以用这些例子拓展画出其他图形-There are several drawing using C language program, very useful, can be used to expand these examples to draw other graphics

《匠人手记》07《巧用移位法进行多字节乘除法计算》.pdf-" Craftsmen Notes from" 07 " a clever method using multi-byte multiplication and division shift method" . Pdf

计算机辅助草绘设计技术研究，以及实现的算法-Sketch computer-aided design techniques, as well as the realization of the algorithm