AnsweredAssumed Answered

i.mx6 PWM period

Question asked by ottawa-imx6 on May 21, 2014
Latest reply on May 23, 2014 by ottawa-imx6

Hello,

I would like to use the PWM output for something other than simple backlight control and this will require me to have a more accurate control over the period.

 

Is it possible to generate an accurate period with the PWM output?

In this case, I would like to generate a clock signal of 3.57MHZ with a duty cycle of 50%.

 

My question is essentially asking what the PWM control registers need to be set as to get as close as possible to this frequency of output.

 

 

In researching the datasheet, i see I can have prescallers of 1, /2, or /4096 with 3 different clock source options and the period register setting.

Has anyone used the PWM for anything other than backlight (where the period is not critical)?

 

 

Thanks
Brent

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