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i.MX6 PWM pin output state when disabled

Question asked by Pavel Stanek on Jul 28, 2015
Latest reply on Jul 30, 2015 by Pavel Stanek

Hi all,

I have i.MX6 Solo and using PWM for backlight, but with inverted logic. Low value of duty cycle means logic 1 for most time.

By POUTC bit I'm able to invert PWM's output levels.

 

Now in linux, when using PWM-backlight driver, when I set backlight to "0", then driver disables PWM and output is at logic 0 ( it seems that it's independent on POUTC bits) instead of full logic 1.

 

So is there some way how to set PWM to real "active-high" mode?When in disabled state the output pin is in high.

 

Thanks.

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