topic S9KEAZN8 – Low power mode entry code example and PWM signal detection in sleep in Kinetis Microcontrollers

S9KEAZN8 – Low power mode entry code example and PWM signal detection in sleep

ssjj — Wed, 03 Jun 2026 05:42:52 GMT

I am using S9KEAZN8. I would like to know how to enter low power mode. Could anyone provide a code example showing how to do this?

Also, I need to detect PWM signal changes while the MCU is in low power mode. What would be the proper way to handle this?

The Reference Manual does not have code examples. Any sample code or guidance would be appreciated.

Thanks.

Re: S9KEAZN8 – Low power mode entry code example and PWM signal detection in sleep

Alice_Yang — Wed, 03 Jun 2026 09:18:40 GMT

Hello @ssjj

Which IDE are you using? If you are using S32DS, there are example projects available for KEA128. These examples can also be used for KEA8 with minor modifications.

About enter low power mode, you can enter through the WFI instruction. For the specific implementation, you can refer to the pmc.c file, which includes functions such as PMC_SetMode().

If you have any other questions, please feel free to get back to me.

Alice