LCD backlight Brightness control is not handle using pwm(MIMXRT1064)

[nikesh]

hi all

LCD: rocktech RK043FN66HS
MCU :MIMXRT1064
PWM pin: IOMUXC_GPIO_B1_15_FLEXPWM4_PWMA03

I have taken example code of pwm. In this example code simple led is works perfectly but same way lcd backlight brightness is not works.
I have setup and configure lcd backlight pin as pwm (IOMUXC_GPIO_B1_15_FLEXPWM4_PWMA03), in pwm source code i have change PMW1 to PWM4 and submodule 3.
Any correction in above steps? please let me know.

[Kan_Li]

Hi @nikesh ，

Which demo are you referring to ? Please kindly clarify.

Have a great day,
Kan

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[nikesh]

hi kan_li
I have taken example from driver_examples -> pwm.
PWM1 is use properly same way PWM4 is not work.
please give any suggestion for configuration for PWM4.

[Kan_Li]

Hi @nikesh ,

Thanks for the  information! Is it possible to have your code for a review? I will try to reproduce it here.

Have a great day,
Kan

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Note:
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- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
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