通过对数学模型的分析建 立了无刷直流电机仿真模型，用双闭环控制进行了仿真，验证了模型的可行性...

记录实验中LM393的波形，及LM393芯片的一些原理调试图片。-Record experiment waveform LM393, LM393 chip and debug some of the principle of picture.

成绩管理系统设计,用JSP设计的-performance management system design, the design JSP

介绍uC/OS-II 在SkyEye上的移植分析.uC/OS-II 作为一个优秀的实时操作系统已经被移植到各种体系结构的微处理器上，也是目前较为常用的公开源码的实时内核。从这里入手学习嵌入式系统开发的基本概念，以及在 SkyEye 里构造一个可以运行的RTOS，能够使我们更深入地了解嵌入式开发的流程，在没有硬件的条件下也能对ARM的体系结构有个初步的认识。-on Phone/OS-II in the transplant SkyEye analysis .uC/OS-II as a excellent real-time operating system has been transplanted to various Architecture microprocessor, It is at present more commonly used open-source real-time kernel. From here start learning embedded system development of the basic concepts SkyEye Lane and the construction of an RTOS can run, enable us to a deeper understanding of embedded development processes, In the absence of hardware conditions can also ARM Architecture is a preliminary understanding.

是一个开发软件,利用pb开发的一个学生管理系统-Development is a software development using pb of a student management system

usb的原理,网上整理的，好不容易找到的，应该对很多人都很有用处！-Principle usb, organize online, and very useful!

如何建立一个真正的电子商务网站，如何使网站结构清晰合理、内容准确详实、页面生动鲜明，如何保证自己的网站能够在茫茫的网络世界脱颖而出，完整的网站建设策划方案恐怕是你在开始建设网站之前必须要考虑的问题。-How to create a true e-commerce website, how to make the site structure clear and reasonable, the accuracy of detailed, lively and clear-cut pages, how to ensure their own websites to the vast network in the world come to the fore, a complete Web site building program is probably planning to start building your web site before must be taken into account.

freeway合作嵌入平台开发IC_图纸-freeway embedded platform development cooperation IC_ drawings

在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速，以及便于实现测量过程自动化等优点，是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计，并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门，通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率，最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求，而且具有了单片机的稳定性和成熟性，且控制能力强，是一种低成本，高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct

CMM提问单 pdf文档-CMM single question pdf file!

ECG related notes. clearly states the need of right leg drive circuit.