FileConvert

【AVR + Proteus】数码管显示两路AD转换结果([AVR+ Proteus] digital display two way AD conversion result)

一个鼠标基于C8051f340为核心的USB鼠标程序，在开发板上已调可用。用Keil打开。(A mouse-based core C8051f340 USB mouse program has been transferred is available on the development board. Opened with Keil.)

基于ARM7的嵌入式试验平台的各种外围器件的程序设计（LCD，键盘，数码管等）(ARM7-based embedded test platform for a variety of peripheral devices program design (LCD, keyboard, digital tube, etc.))

从程序员的角度看计算机操作系统~ 很不错的书 大家都加油了(Computer Systems--A Programmer s Perspective)

Visual C++数据库编程与实例 pdf超高清电子版与原书光盘，非常不容易搞来的，福利来啦！200多M，只能分割，敬请见谅！主卷是VisualCDatabaseProgramAndExamples.zip，还需要下载12个分卷，此为第5分卷(Visual C++ database programming with examples pdf electronic version of ultra-high-definition optical disc with the original book, is not easy to engage in, and benefit coming! More than 200 M, only split, please forgive me!)

可根据需要上传图片logo 首页链接的调用（点击排在前5位的站点） 文字链接的调用（可取消） login.asp 后台管理登陆口 帐号、密码均为admin(According to the need to upload pictures logo The home page links (click to call the top 5 sites) Text link call (can be cancelled) Login.asp background management landing port The account and password are admin)

步进电机是将电脉冲信号转变为角位移或线位移的开环控制电机，是现代数字程序控制系统中的主要执行元件，应用极为广泛。。在非超载的情况下，电机的转速、停止的位置只取决于脉冲信号的频率和脉冲数，而不受负载变化的影响，当步进驱动器接收到一个脉冲信号，它就驱动步进电机按设定的方向转动一个固定的角度，称为“步距角”，它的旋转是以固定的角度一步一步运行的。可以通过控制脉冲个数来控制角位移量，从而达到准确定位的目的；同时可以通过控制脉冲频率来控制电机转动的速度和加速度，从而达到调速的目的。(Stepper motor is an open loop control motor which transforms electrical pulse signal into angular displacement or linear displacement. It is the main executive element in modern digital control system, and is widely applied. In the case of non overloaded, the motor speed and stop position depends only on the pulse frequency and pulse number, regardless of load changes, when the stepper driver receives a pulse signal, it drives stepper motor to set the direction of rotation of a fixed angle, called "step", it is the rotation of the fixed point of the operation step by step. We can control the angular displacement by controlling the number of pulses, so as to achieve the goal of accurate positioning. At the same time, we can control the speed and acceleration of motor rotation by controlling the pulse frequency, so as to achieve the purpose of speed regulation.)

说明：  msp430单片机的电压表程序。用430的ad转换在用数码管显示电压值(msp430 microcontroller voltmeter program. The ad with the 430 conversion voltage value with a digital LED display)

at91sam7a3在iar下的sdcard例程，调试通过，可以作为学习参考(at91sam7a3 the sdcard routine, under the iar through debugging, can be used as a study reference)

STM32 SPI程序 感觉还不错 大家可以试试看(STM32 SPI program I feel pretty good we can give it a try)