Hands-On with STM32 Timers: Complementary Variable Frequency PWM

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In this video, we will learn how to generate center aligned variable frequency PWM signals at run-time for low noise, low power dissipation, smooth motor control applications. We will ouput the signal on multiple complementary channels. We will use STM32CubeIDE to develop our code, and then test it on a Nucleo board.

  1. STMicroelectronics
  2. ST
  3. STMicro
  4. STMicroelectronics
  5. &s5hQ4xYa9L2th_#
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Комментарии
Автор

whats the difference between center aligned mode 1 2 and 3?

contomo
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i want to generate 3 phase pwm, 120 deg phase difference and varying duty cycle (0 t0 100) using timer 1 of stm32f730. is it possible to generate using single timer timer1.

nirbhowjapsingh
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For this to work, you should enable the "auto-reload preload" feature, so that the ARR will be updated at the same time as the CCR and not immediately. Tested on the F413. Note that in the Cube project, inside the linked ZIP file, the "auto-reload preload" feature is (correctly) enabled.

johnsmith-kpmw
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Pls can u show in bare metal edge Aligned works with dma but centre aligned doesn't work with dma

ndidikenneth
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Yeah your work should definitely be appreciated more. Thank you, thanks to everyone for their contribution...

mimimmimmimim
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I was looking for this exact content. Thanks.. Could you please talk about the selection of 30000 for ARR and not selecting Prescaler? Also if I want 5hz PWM with 50% duty and 10HZ PWM with 50% duty how do I proceed? How to relate this ARR number to these frequencies?

PrasannaRoutray