PWM output on Timer3 Ch1

Alexmouse · ‎2019-05-28

I've my LCD backlight control on STM32F429 pin PB4, and as a digital output it was fine. I chose this pin because it can be configured as a PWM output.

I've set up TIM3 Ch1 in CubeMX. I just want a free-running PWM with a dynamically configurable duty cycle, so I can set my backlight to 'bright', 'medium' or 'dim' settings.

I'm getting no signal on PB4, it is just sitting high.

Did I miss something? Is there an 'enable' or 'start' instruction I need to add?

Alexmouse · ‎2019-05-29

How do I flag this thread as "answered"?

Amel NASRI · ‎2019-05-30

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