jiecifenxi

this file talk about wireless comunication

32位基于ARM微控制器STM32F101xx与STM32F103xx的固件函数库。该函数库是一个固件函数包， 它由程序、数据结构和宏组成，包括了微控制器所有外设的性能特征。该函数库还包括每一个外设的驱动 描述和应用实例。通过使用本固件函数库，无需深入掌握细节，用户也可以轻松应用每一个外设。因此， 使用本固态函数库可以大大减少用户的程序编写时间，进而降低开发成本。 为了节省开发时间和工作效 率，所以一般我们进行应用程序编写的过程中都会去使用芯片厂商提供的固件库像Nuvoton和TI都为他们 的32位产品制作了固件库，不过他们对固件库的称呼是库函数，其实实质都是一样的，里面大量采用结构 体，枚举和指针，能够比较方便快捷的帮助用户上手芯片，当然你觉得库函数没有达到你的要求你也可以 进行一定的修改，不过对于基本的应用库函数还是能够满足普通用户的需求的。这里我将记录我在MDK 环境下移植STM32F103xx系列的固件库的过程，其他产品线的固件库也基本都一样。(32-bit firmware library based on ARM microcontrollers STM32F101xx and STM32F103xx. The library is a firmware function package, It consists of programs, data structures, and macros that include the performance characteristics of all peripherals of the microcontroller. The library also includes drivers for each peripheral Description and application examples. By using this firmware library, users can easily apply each of the peripherals without having to master the details. therefore, The use of this solid-state library can greatly reduce the user s program preparation time, thereby reducing development costs. In order to save development time and work efficiency Rate, so we generally use the process of writing the application will be used to provide the chip vendor firmware library Nuvoton and TI are for them 32-bit products produced a firmware library, but they are called on the firmware library library function, in fact, are the same substance, which a large number of structures )

单闭环Boost电路，采用电压环闭环控制。(Single closed-loop Boost circuit, the use of voltage loop closed-loop control.)

ZEMAX 光学设计软件的一些有用的宏语言(some Macro language of ZEMAX optical design software )

该文档对于飞行程序进行了一些研究。能够体现目前飞行程序设计方面的主要编程技术(The documents are studied for flight program. To reflect the current major technology programming flight procedure design)

说明：  工业分选机程序，主要用于电芯或其他物件的品质划分和归类(Procedures for industrial sorters, mainly for quality classification and classification of cores or other items)

multisim仿真 推挽电路，基于TL494，比较全面(multisim simulate for push-pull circuit)

Business modelling with UML

一、随机点名系统需求分析 1、引言 在高等院校、职中专、大专学校里，学生考勤是一项日常必要性的工作，学校的各院系需要了解和掌握各班级的学生出勤情况，以加强对学生的教育和管理。因而学生考勤是学校一项非常重要的工作。 传统的学生考勤以及平时在课堂上的表现，主要是依靠老师在课堂上点名或学生会抽查点名制度，还有上课提问等。学生人数多、考勤不全面、数据不准确，特别是点名考勤制耗费了老师和学生大量的时间且起不到太大的效果。 (A random name system requirements analysis 1 Introduction In higher education, post secondary, tertiary school, student attendance is a necessity of daily work, school faculties need to understand and master students in each class attendance, to enhance the student' s education and management. Thus student attendance is a very important school work. The traditional student attendance and performance in the classroom usually, mainly relying on the teacher or the student named in the classroom random name system, as well as class questions, etc. Number of pupils, attendance is not comprehensive, the data is not accurate, especially upon attendance system, teachers and students spent a lot of time and not be of much effect.)

设计程序模拟先来先服务FCFS，最短寻道时间优先SSTF，SCAN和循环SCAN算法的工作过程。假设有n个磁道号所组成的磁道访问序列，给定开始磁道号m和磁头移动的方向（正向或者反向），分别利用不同的磁盘调度算法访问磁道序列，给出每一次访问的磁头移动距离，计算每种算法的平均寻道长度。(Design program to simulate a first-come first-serve FCFS, shortest seek time first SSTF, SCAN and SCAN algorithms work cycle process. Suppose there are n number of tracks consisting of tracks access sequence for a given number m, and began to track the direction of head movement (forward or reverse), respectively, using a different track sequence to access the disk scheduling algorithm, given the head of each visit distance, calculate the average seek length for each algorithm.)