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frequent
- FPGA等精度测频模块,实现任意频率的等精度测量-FPGA and other precision frequency measurement module, such as precision measurement of any frequency
FPGA_Freq
- FPGA实现等精度测频率,非常精准,本人测试通过-FPGA implementation and other precision measuring frequency, very accurate, I test
cepin
- 基于8051单片机的频率测量程序,使用外部中断口为被测频率入口-Based on the frequency of measurement procedures 8051
CEPIN
- mcu51测频率。自己编程通过测试。能够方便移植到其他应用中-measure frequency using mcu51
pin-lv-ji
- 设计的是一个数字频率计,通过八个七段数码管显示频率值。系统时钟选择的50M的时钟,闸门时间为1s(通过对系统时钟进行分频得到),在闸门为高电平期间,对输入的频率进行计数,当闸门变低的时候,记录当前的频率值,并将频率计数器清零,频率的显示每过2秒刷新一次。被测频率通过一个拨动开关来选择是使用系统中的数字时钟源模块的时钟信号还是从外部通过系统的输入输出模块的输入端输入一个数字信号进行频率测量。当拨动开关为高电平时,测量从外部输入的数字信号,否则测量系统数字时钟信号模块的数字信号。(附详细PDF文档介
msp430
- 430单片机的频率检测仪,可测频率达到400kHz,误差较小-Frequency of 430 single-chip detector, can measure frequencies up to 400kHz, the error is smaller
C8051F041k
- 根据等精度测频原理, 给出了采用C8051F041单片机为主控芯片的高精度数字频率 计的设计方法。 该方法将待测频率信号经过整形放大后输入单片机, 然后由单片机控制内部 计数器分别对待测信号和标准信号同时计数, 再经运算处理得到测量结果, 并由LCD实时显 示, 同时通过RS232串口传至上位机进行记录分析。 该设计方法与传统测频系统相比, 具有 测频精度高, 速度快, 范围宽等优点-Equal precision frequency measurement principle,
MSP430G2231
- MSP430,测频率,可以用Cyc显示频率,500Hz以下比较准 还有待完善-MSP430, frequency measurement, can be displayed by Cyc frequency,500Hz the following comparison must have yet to be perfect
pinlvjiyuanlitu
- 测频率输出一个信号接受后转换为数字信号在液晶屏上显示出来-Measuring the frequency of the output of a signal received is converted to a digital signal on the LCD screen display
detect-The-frequency-with-msp430
- 用msp430测频率,测试的频率从0.1hz一直到5Mhz,具有广泛的通用性可以作为单片机的子模块-detect The frequency with msp430
pinlvji
- 频率计能测频率 周期 高脉宽 低脉宽 频率计能测频率 周期 高脉宽 低脉宽-verilog prepared using high-speed string-type DA-chip dac121 driver code, occupation le small, high efficiency, the current I applied to more products
Frequency--Counter
- 本文档内含有两种测频率方法,测周法 和测频法 ,含有源码及说明文档,仿真文档-This document contains two frequency measurement method, the method of frequency measurement method and week, contains the source code and documentation, simulation document
frequency
- 等精度频率计(FPGA部分),通过单片机发送频率控制字给FPGA,FPGA实现计数,再将计数结果发送给单片机后进行数据处理最后发送到数码管或液晶屏显示待测频率-Precision frequency meter (FPGA part) by the single-chip transmit frequency control word to the FPGA, FPGA, to achieve the count, and then finally sent to the digital dat
20101105
- 我仿照网上的程序写了一个用ICP测频率的程序,将测量结果显示在数码管上。但通过软件仿真发现,改变频率,数码管显示值没有变化,不知是怎么回事,请各位指教。-I follow the program online to write a program with the ICP measured frequency, the measurement results are displayed in the digital pipe. But through software simulation fo
exp12
- 本实验要完成的任务就是设计一个频率计,系统时钟选择核心板上的50MHz的时钟,闸门时间为1s(通过对系统时钟进行分频得到),在闸门为高电平期间,对输入的频率进行计数,当闸门变低的时候,记录当前的频率值,并将频率计数器清零,频率的显示每过2秒刷新一次。被测频率通过一个拨动开关来选择是使用系统中的数字时钟源模块的时钟信号还是从外部通过系统的输入输出模块的输入端输入一个数字信号进行频率测量。当拨动开关为高电平时,测量系统数字时钟信号模块的数字信号,否则测量从外部输入的数字信号。-To complete
frequency
- 测频率Measured frequency,and you can use it to get the frequency of your equipment-Measured frequency,and you can use it to get the frequency of your equipment
frequency
- 频率计1:被测频率fx小于110Hz采用测周法,显示频率XXX。XXX;fx大于110Hz采用测频法,显示频率XXXXXX; 2:可利用键盘分段测量和自动分段测量; 3:可完成单脉冲测量,输入脉冲宽度范围是100微秒--0.1秒; -Frequency meter: the measured frequency fx is less than the 110Hz measured Weeks Act, shows the frequency XXX. XXX
danpianji
- 用数码管测频率,用四个74HC573实现16*16点阵显示任意字,包括程序,原理图的仿真-16* 16 dot matrix display any word, including procedures schematic simulation with four 74HC573 digital tube measured frequency
FREQUNENCE
- 本程序实现测频率测占空比以及用TFTLCD显示的功能,范围 1Hz~24M,精度为0.01, 误差较小可忽略。占空比10k以下精准。TIM2外部计数引脚PA0作为脉冲输入计数, TIM3作为TIM2计数时间,计数周期为10ms计算100次,刚好取一秒。TIM5捕捉比较测脉宽。-The program implementation the measured frequency measured duty cycle, and displayed TFTLCD range 1Hz to 24M, a
16M-frequency-measurement
- 基于msp430的等精读法测频率 精度可达小数点后五位以上,最高频率可达200khz-Based on msp430 and intensive reading method of frequency measurement precision can reach more than five decimal places, the highest frequency of 200 KHZ