About RWazlawick

RWazlawick · 2020-05-20

Hi!Recently, I've been trying to develop a PWM generation module, in a frequency range of 1Hz to 100kHz with a duty cycle step of 1%. I'm using STM32F103C8 Bluepill to do the job.I can implement this just fine. However, in this range I obtain errors ...

RWazlawick · 2020-05-22

TDK,In average yes, I would obtain the 42%, However I'd like to see from my adjustmen with 45 45 45 45 40 40 40 40, this 42% when I measure with the oscilloscoppe.I have an IHM where I can adjust my duty cycle and the frequency is informed. When I se...

RWazlawick · 2020-05-22

The lower is TIM4 and upper is TIM1.Actually, the upper waveform is my PWM output. Now the lower is where I modify the duty cycles (5% step) of the upper in little fractions so I can result in the desired duty cycle (of 1% step).I want to develop a P...

RWazlawick · 2020-05-22

Thank you, I appreciate your suggestions.Related to use another TIM: I was looking for way to achieve a duty cycle in a 1% step even if configured for a 5% step. So the whole idea was to change my duty cycle in fractions of period, so the final avera...

RWazlawick · 2020-05-21

But if I want a specifically a duty cycle of 42%, would I achieve it by populating dc_calc with my calculated values? Cause my timer is configured with a 5% step of duty cycle (to improve my frequency resolution) and I adjusted this other timer in o...

RWazlawick · 2020-05-20

It was to begin my adjusment of duty cycles always in the beginning of the period of TIM1, when CNT = 0; That instance is from TIM1 and the interrupt is from TIM4.

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