STM32F413VG TIM1 PWM generation trouble

Forum|Forum|4 years ago
January 11, 2022
6 replies
3326 views

I am having trouble getting the TIM1 timer on the STM32F413VG chip to output PWM to pin PE9. My configuration and code in STM32CubeIDE can be seen in the attached images. Have I done something wrong? Every example I have found out there skips TIM1 and goes straight to TIM2, could it be that TIM1 does not support PWM generation, even though it is an option in CubeIDE?

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Best answer by TDK

Should work.

Initialize PE9 as GPIO output and toggle to verify you're actually monitoring that pin.

Tesla DeLorean

Guru

TIM1 and TIM8 are Advanced Timers, you must explicitly enable the PWM outputs. HAL_TIM_PWM_Start()

Show the actual pin and clock initialization code.

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jm.2

Associate III

Hi,

From the above code, i have used, I am getting output. But from this method how to calculate the PWM frequency can you please suggest me.

TDKAnswer

Super User

Should work.

Initialize PE9 as GPIO output and toggle to verify you're actually monitoring that pin.

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waclawek.jan

Super User

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

JW

eidetechAuthor

Associate II

Thanks a lot for the replies guys. As TDK said, it should work, and it did. The problem was that I am apparently confused with the orientation of the chip. So when I measured the correct pin, I got the expected output :). I assume you guys can tell me the logic here: In the datasheet, the LQFP100 chip is presented like this:

As you can see (you guys are probably familiar with this, but I will try to explain my confusion), the chip is presented without any of the orientation markers, nor text that specifies the orientation. Therefore I assumed that the text on the physical chip would match the orientation of the figure, but to my surprise, it is actually rotated 90 degrees CCW.