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M
- STM32测频,数脉冲测频,三个定时器,M法测频 适合测高频-STM32 frequency measurement, digital pulse frequency measurement, three timers, M method to measure the frequency Suitable for measuring high-frequency
NE
- NE 杯波形跟踪仪代码,选用STM32处理器,在MDK开发环境开发,用红外遥控实现控制,内哈测频程序,已及在输出信号的高电平对应输入信号的下降沿实现输出波形的移动-NE Cup waveform tracker code, use STM32 processor, MDK development environment to develop, with the infrared remote control to achieve, Hannay frequency measurement pro
[04]-Under-the-STM32-chip-frequency-72MHZ-full-th
- Under the STM32 chip frequency 72MHZ
fpga
- 本系统以STM32控制器为核心,配合FPGA,采用等精度测量法,通过程控放大器对不同输入电压信号进行分档,实现宽带小信号放大。分档放大后的信号经过整形电路,通过FPGA对其边沿进行检测计数能够实现对正弦波的测周与测频,方波时间间隔的测量,矩形波占空比的测量,并采用彩色TFT进行显示测量信息。对于输入的高频信号能够在低于10mv有效值准确完成电路的放大和测频。-The system with STM32 controller as the core, with FPGA, using equal
fenkun
- 可以得到很精确的幅值、频率、相位估计,STM32制作的MP3的全部资料,内含心电信号数据及运用MATLAB写的源代码。- You can get a very accurate amplitude, frequency, phase estimation, STM32 all the information produced by the MP3, ECG data and includes source code written in MATLAB.
fiujang
- STM32制作的MP3的全部资料,车牌识别定位程序的部分功能,小波包分析提取振动信号中的特征频率。- STM32 all the information produced by the MP3, Part of the license plate recognition locator feature, Wavelet packet analysis to extract vibration signal characteristic frequency.
STM32-KEYPPWM
- STM32最小系统上 利用按键来控制PWM的输出,改变输出频率。控制器件。-Use keys to control PWM output, change the output frequency on STM32 minimum system. Control devices.
STM32测频
- ADC采集及编程,可以很好的测量电压和频率什么的。很好用,(ADC acquisition and programming, you can very good measurement of voltage and frequency. It's very easy to use.)
变声器
- 通过ADC采样获得语音信号,存储在SRAM中,进行频谱搬移实现变声,用DAC输出(Through ADC sampling to obtain the voice signal, stored in the SRAM, frequency shift to achieve sound, DAC output)
基于stm32测试控制变频器控制异步电机
- 基于stm32测试控制变频器控制异步电机(Control asynchronous motor based on STM32 test control frequency converter)
频率计
- 测量频率,有三个量程,自动调节,可以在OLED显示屏上显示结果。(The measuring frequency is automatically adjusted by three measuring ranges.)
SPWM_双极性_TIM8
- STM32双极性SPWM程序代码,互补输出,有死区,频率可调。(STM32 bipolar SPWM program code, complementary output, there are dead zones, adjustable frequency.)
STM32神舟III号例程源码20130905
- 01.LED点灯实验(STM32神舟III号-寄存器版) 02.LED双灯闪烁实验(STM32神舟III号-寄存器版) 03.LED三个灯同时亮同时灭(STM32神舟III号-寄存器版) 04.LED流水灯(STM32神舟III号-寄存器版) 05.STM32芯片32MHZ频率下跑点灯程序(STM32神舟III号-寄存器版)(01.LED lighting experiment (STM32 Shenzhou III - register version) 02.LED double
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 cycle variable signal generator)
测量频率
- 功能:测量两路输入的频率,并在液晶上显示。 有两种方法测频率,一种是周期测频法,一种是频率计数法: 周期测频法要求有参考时钟,通过对一个或者几个周期信号内参考时钟的计数来测量; 频率计数法就是单位时间内测出被测信号的改变次数,从而得到频率。 第一种方法的精度与参考时钟的速度有关,速度越快精度越高,第二种的精度跟所取的单位时间有关,时间越长,精度越高。所以前者适合测低频,后者适合测高频。 所以要想测量准确就得看你所测信号的频率范围了。 你也可以结合这两者的优势,实现互补。
直接测周法
- 采用直接测周期法测量信号频率,最小可测到10HZ,平台为STM32F103(measurement signal ;direct;frequency)
上位机查询模式
- 使用stm32F103测频率的keil c源程序(STM32 frequency measurement)
PWM DAC
- stm32 pwm方波,改变引脚输出频率,通过占宽比来调节输出引脚的电压(STM32 PWM square wave, changing the output frequency of the pin, and adjusting the voltage of the output pin by occupying the width ratio)
周期
- 本程序是用STM32F103芯片进行开发的,实现对方波信号的频率测量,并显示在12864液晶屏上(This program is developed with STM32F103 chip, and the frequency measurement of the signal of the other side is realized, and it is displayed on the 12864 LCD screen.)
4-20mA XTR111正式版
- STM32 硬件PCB 图纸 输出4-20MA电流信号 采集频率信号(STM32 hardware PCB drawing outputs 4-20mA current signal and collects frequency signal)