topic Re: S32K FTM0 PWM in S32K

S32K FTM0 PWM

sagar_yadav — Fri, 09 Aug 2019 04:28:29 GMT

I am using S32k144 for my application.First time I am using this controller.Can I set different PWM frequency for every PWM channel of FTM0. ?Can I used FTM Fault Inputs to turn off PWM?

Re: S32K FTM0 PWM

jorge_a_vazquez — Mon, 12 Aug 2019 21:01:38 GMT

Hi sagar yadav

Did you mean a different duty cycle for every channel? If so, then yes, each FTM channel can have a different duty cycle, but if you require a different frequency in each channel, then it is not possible to work the same module with different frequency base, you would need other FTM module.

Hope this helps
Have a great day,
TIC

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Re: S32K FTM0 PWM

sagar_yadav — Tue, 13 Aug 2019 03:46:37 GMT

Hi Jorge,

Thanks for reply. I required different frequency for each channel so I will used different FTM module.

Can I used FTM Fault Inputs to turn off PWM?

Can I used FTM0CH0 for Fault Input to turn off FTM3_CH0 PWM output????

Thanks & Regards,

Sagar

Re: S32K FTM0 PWM

jorge_a_vazquez — Tue, 13 Aug 2019 17:23:32 GMT

Hi sagar yadav

The fault input signals are used to control the CHn channel output state. If a fault is detected, the FAULTj signal is asserted and the channel output is put in a safe state. Please check the following link:

What is FTM FAULT?

Can we trigger FTM4 fault with Trgmux module

You cannot use the fault input of one module to turn off another module, but you have an interrupt vector for the fault detection, you can with software disable the output of the FTM module that you need.

Regards

Jorge Alcala