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What is the difference between STM32 and PWM?
The STM32 hardware timers are separate hardware blocks that can count from 0 to a given value triggering some events in between. In the PWM mode the timer controls the output of 1 or more output channels.
How does the timer work in PWM mode?
In the PWM mode the timer controls the output of 1 or more output channels. When the counter value reaches 0, maximum or a compare value defined for each channel, the output value of the channel can be changed. Various configuration options define which events change the value and how it is changed.
What are the STM32 hardware timers used for?
The STM32 hardware timers are separate hardware blocks that can count from 0 to a given value triggering some events in between.
What is the mode of PWM in visualgdb?
The mode in which the timers generate the output signals is called PWM (pulse-width modulation) referring to the pulses of adjustable width that can be generated as a result.
How many channels does a STM32 timer have?
The output stage generates an intermediate waveform which is then used for reference: OCxRef (active high). The polarity acts at the end of the chain. A single STM32 timer usually has multiple channels (4, 6, or whatever found in the datasheet).
How to generate PWM in edge-aligned mode STM32?
In PWM mode (1 or 2), TIMx_CNT and TIMx_CCRx are always compared to determine whether TIMx_CCRx≤TIMx_CNT or TIMx_CNT≤TIMx_CCRx (depending on the direction of the counter). The timer is able to generate PWM in edge-aligned mode or center-aligned mode depending on the CMS bits in the TIMx_CR1 register.
What can a PWM signal be used for?
Signals such as these are used a lot in power control applications like light dimmers and motor speed control. The brightness of your computer screen is almost certainly controlled by a PWM signal. The STM32 general purpose timers like TIM3 and TIM4 have hardware that makes it easy to generate PWM signals.