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说明: 下面的程序利用友元函数求两点间的距离。请你将有关的程序补充完整,并总结为什么这里要用友元函数来求两点间的距离。(using friend to get the result.)
- 2015-07-14 16:16:25下载
- 积分:1
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78712545
一个可以控制电机的程序 能主管的显示数据(One can control the electric charge of the program can display data)
- 2009-07-13 00:56:16下载
- 积分:1
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usb_dev_audio
This is LM3S9B92 Sample Code data
- 2012-11-11 17:31:22下载
- 积分:1
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virtual-serial-port
单片机虚拟串口仿真图,里面有虚拟串口软件和串口调试助手,还有用proteus进行的仿真图,不用开发板一样进行仿真,只能说proteus太强大了。只要你想不到的,没有他做不到的!(Virtual serial port emulation chip chart, which has a virtual serial port software and serial debugging assistant, as well as performed with proteus simulation map, not the same simulation development board can only say proteus too strong. As long as you think, no he can not do!)
- 2013-07-31 16:19:11下载
- 积分:1
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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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motor3
设计的电机驱动控制系统的主要功能有①控制电机的正转、反转;②为电机设计控制速度,有5m/s、10m/s、15m/s三个等级;③给电机设定转动的位移,让电机按照设定的位移移动;④1602液晶上显示电机的位移和速度;⑤利用4*4键盘数字输入控制电机的速度、按键C和D控制正反转、按键B控制三个档位的速度。(Using SCM software and hardware systems to achieve precision stage displacement, velocity through three or four phase stepper motors (motors meet the acceleration and deceleration characteristics), control the direction, location. Completion of the control circuit board hardware, including CPU, power amplifier, buttons, LED display. Software can be implemented in C.)
- 2014-05-29 20:40:16下载
- 积分:1
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使用PCOMM实现的MFC串口调试助手
Pcomm开发的串口调试助手,能实现简单的发送和接收.(Pcomm development of serial debugging assistant)
- 2017-09-26 15:16:39下载
- 积分:1
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STC12C5A60S2_Uart_Str
该例程演示了接 联合开发网 - pudn.com
- 2020-06-26 18:20:02下载
- 积分:1
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skinforwin
Other Skin for yous App... simple, you can made more skins for it. Come whit some skins
- 2015-07-12 18:48:41下载
- 积分:1
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yejin-miaobiao
基于msp430单片机的秒表及12864函数,经过149及169验证的(Msp430 microcontroller based function stopwatch and 12864, after 149 and 169 validation)
- 2011-07-23 19:52:00下载
- 积分:1