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CDe S.2
Visitor II
May 3, 2023 6:46 PM UTC
Question

Timers not outputting PWM

I am using the Nucleo L476RG board and I have configured TIM2 to output PWM in Channel 1. I have very basic code that should output a 25% duty cycle because I set the PWM pulse in the TIM2 parameters settings to 250. I have tested several pwm pins and watched many tutorials but I cannot observe any PWM signal using my oscilloscope. I have used the project example in the STM32Cube_FW_L4 folder from ST, but I cannot understand why my current code does not generate a pwm.


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_legacyfs_online_stmicro_images_0693W00000bjJhRQAU.png 


_legacyfs_online_stmicro_images_0693W00000bjJhqQAE.png

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1 reply

waclawek.jan
Super User
May 3, 2023 10:59 PM UTC

Read our and check/post content of TIM and relevant GPIO registers.

JW