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pinlvji
- 本频率计具有测周、测频、测量占空比等基本功能,能自动换档,误差为1%-the frequency meter is measuring weeks, frequency measurement, measuring the ratio of the basic functions can automatically shift error of 1%
C
- * 功能:使用PWM6输出PWM信号,通过滤波电实现DAC转换。由KEY1控制PWM的占空比, * 每按一次按键将会改变一次PWM的占空比。 * 说明:使用示波器观察测试点PWM和PWMDAC。
The-frequency-account
- 本频率计采用数据选择器实现对任意周期信号的频率、周期、脉宽、占空比、自检等不同功能输入电路的选择,通过键盘实现了各个功能的选择,最后采用LED动态显示模块将所测的数值显示出来。
pinlvji
- 本频率计具有测周、测频、测量占空比等基本功能,能自动换档,误差为1%-the frequency meter is measuring weeks, frequency measurement, measuring the ratio of the basic functions can automatically shift error of 1%
C
- * 功能:使用PWM6输出PWM信号,通过滤波电实现DAC转换。由KEY1控制PWM的占空比, * 每按一次按键将会改变一次PWM的占空比。 * 说明:使用示波器观察测试点PWM和PWMDAC。-* Function: Use PWM6 output PWM signal, by filtering electrical realize DAC conversion. Key1 controlled by the PWM dut
The-frequency-account
- 本频率计采用数据选择器实现对任意周期信号的频率、周期、脉宽、占空比、自检等不同功能输入电路的选择,通过键盘实现了各个功能的选择,最后采用LED动态显示模块将所测的数值显示出来。-The frequency meter data selector realize periodic signal of arbitrary frequency, period, pulse width, duty cycle, different functi
cepin
- 本频率计具有测周、测频、测量占空比等基本功能,能自动换档-The frequency meter has a measurement weeks, measuring frequency, measuring the basic functions of duty cycle, etc., can automatic transmission
TestingFrequency
- (1)频率测试功能:测频范围0.1H~200H。 测试精度:恒为百万分之一。 (2)脉宽测试功能:范围0.1us~1s,精度0.01us。 (3)占空比测试功能。-(1) the frequency of test functions: the scope of testing frequency 0.1H ~ 200H. Test accuracy: Constant for the parts per million.
pinlvjifangzhen
- 可以测频率周期及占空比,8位数码管显示C语言程序-Can detect the frequency and duty cycle, 8-bit digital tube display C Language Program
Digital_temperature
- 任务:设计并制作一个以单片机为核心的温度测控系统 设计要求: ①. 被测温度范围为0—100℃。温度测量误差范围小于5℃,能进行当前环境温度调校。 ②. 测试问题通过4位LED数码管显示。 ③. 温度下限 L为30℃,上限 H为50℃。当温度≥50℃时,模拟发光二极管全亮。当温度≤30℃时,模拟发光二极管全灭。当30℃≤温度≤50℃时,输出占空比=(H-t)/(H-L)。 ④. 发挥部分:可按键设定温度下限值和上限值
CPLD-basedfrequencymeter
- 基于CPLD的复杂多功能频率计设计,实现测周期,测频率测占空比的功能-CPLD-based multi-functional and so the design of precision digital frequency meter
FTEST2
- Verilog语言,等精度频率计/测脉冲宽/测占空比-Verilog language, and other precision frequency meter/measuring pulse width/measured duty cycle
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 displa
src
- 基于Xilinx FPGA的数字频率计,包括测频测周期测脉宽测占空比等-Xilinx FPGA-based digital frequency meter, including frequency measurement measuring duty cycle pulse testing, etc.
Cymometer
- 用FPGA设计的等精度测量频率。频率的测量范围为1Hz-100MHz。可以测占空比,测时间间隔等。可测正弦波和方波。精度大于10e(-4)-Using FPGA to design the equal precision frequency measurement.Frequency of the measuring range is 1 hz- 100 MHZ.Can examine duty ratio, time interval
Frequce
- 能测量频率,并且能测占空比10 90 ,还能产生1M 占空比10 的脉冲波- 能测量频率,并且能测占空比10 90 ,还能产生1M 占空比10 的脉冲波 Can measure the frequency, and can measure the duty cycle 10 90 , but also can produce the 1M duty cycle 10 of the pulse wave
测pwm波占空比
- 基于Verilog的接受pwm波并且测量pwm波占空比(Measuring the duty cycle of PWM wave)
使用STM32测量频率和占空比的几种方法
- 使用单片机STM32L测频率和占空比的方法,实测可用(Using singlechip STM32l to measure frequency and duty cycle)
输入捕获测频率和占空比
- STM32测量频率和占空比,可调节测量范围(STM32 measurement of frequency and duty cycle)
TIMER
- STM32 的定时器能功,可以用来作为信号发生器和频率计,一方面来测频,一方面来发生频率可变,占空比可变的信号发生器(STM32 timer can work, can be used as a signal generator and frequency meter, on the one hand to measure frequency, on the one hand to variable frequency, duty cy