What is the maximum frequency of STM32F4's PWM?

[just4u78]

Posted on May 26, 2015 at 07:11

I would like to use the PWM as clock source for other device.

so I want to know the maximum frequency of PWM. As faster the frequency of PWM signal increase, the more the shape of PWM signal become to triangle signal. Why this phenomenon is happen? TIM2_CH1(PA5) PWM - 8.4KHz TIM2_CH1(PA5) PWM - 84KHz TIM2_CH1(PA5) PWM - 840KHz #stm32 #pwm

[just4u78]

Posted on May 26, 2015 at 12:47

It's my fault.

I'd compared with the PWM of STM32F429I-Discovery. My development kit is connected to usb protection ic. After disconnecting this component, the PWM works correctly.