Is there an API for accessing the timers (TIMx)?

[vbuon.1]

hi,

i would like to know if there is an API for configuring, starting and stopping the timers (TIM1, TIM2, etc.) i'm interested in setting up a timer as a PWM device. i've come across documentation that talks about functions that can be used to set up a timer as a PWM device (e.g., pwm_apply_state, pwm_config, pwm_enable, etc.) but i can't find any documentation that describes these functions, the name of the library they are in or the header file to include. no can i find examples on how to use the API. i found examples on adding nodes to a device tree and how to use the sysfs interface. but, i would prefer to use a library if it exists.

thank you,

vincent j. buonassisi

[PatrickF]

Hi,

Please have a look to this wiki page which provide links to SW framework usable with TIMx

https://wiki.st.com/stm32mpu/wiki/TIM_internal_peripheral#Software_frameworks

in particular, I see this API https://wiki.st.com/stm32mpu/wiki/PWM_overview#Example_of_PWM_usage_with_kernel_PWM_API

See also this post: https://community.st.com/s/question/0D53W000014W92lSAC/pwm-kernel-driver-api

Regards,

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[PatrickF]

Hi,

Did the answer above helped you ?

Regards.

In order to give better visibility on the answered topics, please click on 'Select as Best' on the reply which solved your issue or answered your question. See also 'Best Answers'

[vbuon.1 · Accepted solution]

hi,

thank you for your response. the post was the most helpful. it seems that there is no library to access the timers. the easiest way w/o having to write my own driver was to use c/c++ file i/o calls. i can use either the higher level calls (e.g., fopen, fprintf, etc.) or the low level ones (.e.g, open, write, etc.)

thanks,

vince