Any way to vary the duty cycle in the runtime? And also LED Brightness?

[Shrini]

I want to vary the duty cycle in the run time. So that I can observe the pwm signal. And also want to change the LED brightness using potentiometer. Is it possible to do in the s32ds using s32k144 board? 

[VaneB]

Hi @Shrini 

Yes, it is possible to change the duty cycle of a PWM. You need to change the value of the CnV register
FTM_->CONTROLS[channel].CnV= value;
I suggest you look at the included examples on the SDK/RTD or in the S32K1xx Series Cookbook.

B.R.

VaneB

[Shrini]

Hello @VaneB, I am thinking to do this task using API's not in register level coding.

[VaneB · Accepted solution]

Hi @Shrini 

SDK: FTM_DRV_UpdatePwmChannel

RTD: Ftm_Pwm_Ip_UpdatePwmChannel

MCAL: Pwm_SetDutyCycle

[Shrini]

Thank you @VaneB