搜索资源列表
基于stm32的DDS芯片AD9851驱动
- 用stm32驱动AD9851,能够精确产生72M频率以内的正弦波和占空比可调的方波
stm32-Frequency-meter
- 使用stm32通用计数器做的一个简易频率计,可以算出脉冲宽度还有其占空比-Done using a general-purpose counter stm32 simple frequency counter, you can calculate the pulse width as well as its duty cycle
PWM_Input
- STM32定时器PWM输入捕获,利用TIM1计算脉冲频率及占空比。-This example shows how to use the TIM peripheral to measure the frequency and duty cycle of an external signal.
PWM_Output_Input
- 用TIM3定时器在PA6、PA7、PB0、PB1输出四种频率相同占空比分别是50 、37.5 、25 、12.5 的信号。 用TIM2的PWM_Input功能,从PA1口捕获PWM信号的频率及占空比,并用USART1输出测量信息。-At TIM3 timer with PA6, PA7, PB0, PB1 output frequency of the same four are 50 duty cycle, respectively, 37.5 , 25 , 12.5 of the
STM32-TIM1-PWM
- 通过对 TIM1 定时器进行控制,使之各通道输出插入死区的互补PWM 输出, 各通道输出频率均为17.57KHz。 其中,通道1 输出的占空比为50 ,通道2 输出的占空比为25 ,通道3 输 出的占空比为12.5 。各通道互补输出为反相输出。 TIM1 定时器的通道1 到3 的输出分别对应PA.08、PA.09、PA.10 引脚,而通 道1 到3 的互补输出分别对应PB.13、PB.14 和PB.15 引脚,将这些引脚分别接 入示波器正接线,GND 引脚接示波器负接线,
stm32-PWM-output-waveform-display
- stm32 ARM单片机的PWM输出,然后通过通过ADC采样,并且在2.8寸液晶触摸屏幕上显示PWM动态的电压点位和ADC值,pwm频率和占空比可以通过改变定时器值而调整-STM32 ARM microcontroller PWM output, and then passed through the ADC sampling, and dynamic voltage point of the PWM and ADC values 椠渀 the 2.8-inch LCD touch screen
STM32-pwm
- 基于STM32的四路 不同频率 不同占空比的程序-Based on the STM32 four different frequencies and duty cycle program
STM32-PWM-fre-and-
- STM32F103 -快速计算出输入PWM的脉宽和占空比及频率-STM32F103 - quickly calculate the pulse width and duty cycle and frequency of the PWM input
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)
plusewidth(time_prescaler)
- STM32F103VE芯片,可以实现两个端口测量脉冲的频率以及占空比,为了防止溢出,将其进行了分频处理,可以测量出50Hz左右的脉冲,如果频率过大,则精确度会下降,需要重新更改分频数,程序中不包含输出部分,需要自己添加输出程序,建议直接读取TIM3_CCR2,TIM3_CCR1寄存器的值,然后自己进行转化。程序里面有大概的转换方法,但数值上并不合适,需要进行修改。(STM32F103VE chip, can achieve two port measurement of pulse freque
输出比较模式测试实验
- 本实验将实现如下功能:通过定时器的输出比较模式,在PC6~PC9,输出4路PWM,每路PWM频率为500Hz,占空比为50%,每一路PWM相位差为45°(This experiment will realize the following functions: through the timer output comparison mode, in PC6~PC9, output 4 way PWM, each PWM frequency is 500Hz, duty cycle is 50%,
IC
- 基于STM32单片机,可对输入的PWM波进行频率测量与占空比测定(Based on STM32 microcontroller, the input PWM wave frequency and the duty cycle can be measured.)
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)
STM32 输入捕获
- 配置STM32f103vet6单片机PWM输入功能,可以用来测pwm频率和占空比(STM32f103vet6 SCM PWM input function can be used to measure PWM frequency and duty ratio)
stm32两路相位差180度PWM
- stm32高级定时器1产生两路相位差180度PWM,频率、占空比可调。(STM32 produces two phase difference 180 degree PWM)
STM32 的4路互补pwm
- 使用keil5编写的STM32输出四路互补的PWM,适配正点原子的mini版,同样是为电赛逆变系统做的准备。通过定时器的输出比较模式,在PC6~PC9,输出4路PWM,每路PWM频率为500Hz,占空比为50%,每一路PWM相位差为45°(The STM32 output four complementary PWM, which is written in keil5, is suitable for the mini version of the positive point atom, w
PWM输入捕获程序
- STM32PWM捕获程序,计算周期频率,以及占空比。(STM32PWM capture program, calculate cycle frequency, and duty cycle.)
示波器
- 基于stm32f4的示波器,测量后用TFT屏幕显示频率,波形,占空比(Stm32f4 based oscilloscope, measured with TFT screen display frequency, waveform, duty cycle)
飞机电机PWM解锁调速
- stm32平台,输出4路PWM解锁电调,pwm输出频率为50HZ,调整占空比达到控制电机转速目的(STM32 platform, output 4 PWM unlock electric adjustment)