搜索资源列表
shuzipinluji
- 数字频率计的设计可以分为测量计数和显示。其测量的基本原理是计算一定时间内待测信号的脉冲个数，这就要求由分频器产生标准闸门时间信号，计数器记录脉冲个数，由控制器对闸门信号进行选择，并对计数器使能断进行同步控制。控制器根据闸门信号确定最佳量程。-The design of digital frequency meter can be divided into measurement and display count. The basic principle of its measurement i
rtai_satellite_dish_positioner_project
- Most satellite dish actuators send a series of pulses to indicate their position. By counting pulses the positioner knows where the dish is pointing. It is possible to use a serial port and Linux with RTAI patches in order to count these pulses, thus
freq_measure
- 用CPLD对输入脉冲进行计数，从而计算频率-Using CPLD to count the input pulses in order to estimate the frequency of
quadrature
- The output from incremental optical encoders and from many other types of measurement devices is known as a “quadrature” signal. A quadrature signal consists of two square waves 90° out of phase. The input channel on our encoder interface board count
baheyouxiji
- 拔河游戏机， 1、 设计一个能进行拔河游戏的电路。 2、 电路使用15个(或9个)发光二极管，开机后只有中间一个发亮，此即拔河的中心点。 3、 游戏双方各持一个按钮，迅速地、不断地按动，产生脉冲，谁按得快，亮点就向谁的方向移动，每按一次，亮点移动一次。 4、 亮点移到任一方终端二极管时，这一方就获胜，此时双方按钮均无作用，输出保持，只有复位后才使亮点恢复到中心。 5、 用数码管显示获胜者的盘数。教学提示: 1、 按钮信号即输入的脉冲信号，每按一次按钮都应能进行有效的计数。 2、 用可逆计数器的加
pulsecount
- s3c2410利用外部中断对外部脉冲进行计数的裸机程序-s3c2410 use of external interrupt count external pulses bare metal process
question4
- Q4 This exercise is to count logic pulses on a single input bit using a Polling technique
fgg
- 频率的测量实际上就是在1s时间内对信号进行计数，计数值就是信号频率。用单片机设计频率计通常采用两种办法，第一种方法是使用单片机自带的计数器对输入脉冲进行计数；第二种方法是单片机外部使用计数器对脉冲信号进行计数，计数值再由单片机读取。-In the measurement of frequency is actually 1s to count time signal, numerical is signal frequency. Using single-chip microcomputer f
xzvxvxcvz12g
- In the measurement of frequency is actually 1s to count time signal, numerical is signal frequency. Using single-chip microcomputer frequency plan by using two kinds of method, usually the first approach is to use own counter chip counting input puls
YCMoter
- 利用IO口直接控制摇床电机，对IO口所发脉冲进行计数，达到摇床电机所需控制。-IO ports using the direct control of shaker motor, issued on the IO port to count pulses to achieve the required shaker motor control.
jishuqi
- 各种功能计数器利用数字电路技术数出给定时间内所通过的脉冲数并显示计数结果-Features the use of digital circuit technology a few counters for a given period of time the number of pulses passed by the count and display the results
jsq
- 以单片机为核心器件，通过编写的程序，来对外部脉冲计数。-A microcontroller as the core component of the program by writing to count external pulses.
Experiment24_ne555
- 6位数的计数器源程序，可以从0一直999999，NE555的输出口P3.5计数,开机显示0000000数码管数据p0,数码管控制p2口,计数脉冲NE555 P3.5输出 调整NE555的电位器，可以观察到计数的变化， 去掉ne555的跳线，则停止计数-6-digit counter source, can be from 0 999999, NE555 s output P3.5 count, boot displays digital data 0000000 p0, p2 digital c
speed
- 使用霍尔测速，一周上贴有4个小磁铁，转一周产生4个脉冲，定时器计一秒，计算产生脉冲个数-Speed ??with Hall, a week posted 4 small magnets, one revolution produces four pulses, the timer count second, calculate the number of pulse
Use-the-STM32-timer-
- 使用STM32的定时器进行输入脉冲的计数代码-Use the STM32 timer carries on the count of input pulses code
51_test-frequency
- 首先要把51hei单片机开发板上的ne555的方波输出信号J7的第一脚用杜邦线,引入P3.2口,数码管即可显示ne555震荡电路当前的频率值,旋动PR1电位器可发现数字有变化. 原理：1秒钟内计数外部脉冲个数，如计数1000次，则表示频率为1000Hz -First, we should 51hei microcontroller development board ne555 square wave output signal with the first pin of J7 DuPo
TEST3
- T0发出周期为2S的脉冲，T1做计数器计数，并动态扫描显示计数脉冲数。-Given period of 2S T0 pulse, T1 do counter, and dynamic scanning display count pulses.
Pulse-count
- 脉冲计数并通过LCD显示出来的程序，可以用来监测脉冲的个数，比如在进行编码器脉冲的技术等等场合都很实用。-Pulse-counting procedures, and out through the LCD display can be used to monitor the number of pulses, such as during the encoder pulse technology, and so on are very practical.
Two-serial-interrupt-Transceiver
- STC51系列双串口中断收发-INT0计数脉冲例程。-STC51 series dual serial port interrupt routine transceiver-INT0 count pulses.
clok count and reset
- counting0 amount of pulses with reset