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按键 步进电机
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.)
- 2018-01-29 13:24:17下载
- 积分：1
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无线信道时延扩展仿真
无线信道时延扩展仿真
一、仿真目的
在数字通信中，无线信道所表现出的时延扩展将有可能引起接收信号的码间串扰。实验的目的是从时域角度方面对移动信道的多径环境引起的接收信号时延扩展现象进行仿真。(wireless channel delay spread simulation
One, the simulation purpose
In digital communication, wireless channel delay spread shown will likely cause the received signal crosstalk code. The aim of the experiment is to delay the received signal due to multipath environment of mobile channel in time domain and the phenomenon of simulation.)
- 2014-06-17 23:41:02下载
- 积分：1
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WM8731RegConfig
WM8731是高性能的音频编码解码芯片，使用时需要通过IIC总线进行配置，本程序可以直观的设置各寄存器的参数，并自动生成C或C++语言代码。使用方便。(WM8731 is a high-performance audio codec chip, need to use IIC bus configuration, this procedure can be intuitively set the parameters of the register, and automatically generate C or C++ language code. Easy to use.)
- 2010-10-05 11:05:59下载
- 积分：1
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110kv
根据设计任务书的要求，本次设计为110kV 变电站电气一次部分初步设计，并绘
制电气主接线图及其他图纸。该变电站设有两台主变压器，站内主接线分为110kV、
35kV 和10kV 三个电压等级。各个电压等级分别采用单母线分段接线、单母线分段带
旁母接线和单母线分段接线(From the guide of engineering design assignment, we have to
design primary power-system of 110kV substation and draw main
electrical one-line diagram and others. There are two main
transformer in the substation in which main electrical connection
can be divided into three voltage grades: 110kV, 35kV with 10kV.It
deposits sectionalized single bus bar scheme, sectionalized single
and transfer bus bar and sectionalized single bus bar scheme per
grade.)
- 2020-11-01 11:49:54下载
- 积分：1
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timer2
AVR单片机 定时器的应用 初始化 以及中断程序(AVR microcontroller timer application initialization and interrupt routine)
- 2013-08-12 10:59:38下载
- 积分：1
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Light-water-program
流水灯程序，在89C52的单片机上让LED灯按照顺序的逐个点亮(Light water program, 89C52 microcontroller on the LED lights lit one by one in the order of)
- 2015-03-11 02:06:18下载
- 积分：1
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race-game
经典赛车游戏的基础模型，基于LPC2138芯片设计，可在ILI9320 LCD触摸屏上操作(The basis of classic car racing game model, based on the LPC2138 chip design, can be in ILI9320 LCD touch screen operation)
- 2016-04-21 11:14:22下载
- 积分：1
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hmi_v013
用于TI 3S9B96开发板
实现功率转换的功能(Development board for the TI 3S9B96 achieve power conversion function)
- 2011-11-25 17:42:31下载
- 积分：1
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OV7670_DS_(1_4)
ov7670 datasheet，ov7670摄像头数据手册(this is the ov7670 datasheet)
- 2018-09-11 09:28:22下载
- 积分：1
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17_LCD1602基本显示程序
简单的lcd1602显示代码，说明通俗易懂(Simple lcd1602 display code)
- 2020-06-17 19:20:02下载
- 积分：1
