KW38 32MHz oscilator could not work

[Wade1]

Hi, dear Sir/Madam

     I have used KW38 on my board. The 32MHz oscilator didn't work after booting. After switching to FEE mode by setting MCG_C1->CLKS as 00 and MCG_C1->IREFS as 0，the MCG_S->IREFST will keep high and not be set as 0 as expected，thus the mode Switching fails and stuck in the while loop.

The schemetic of KW38 is the following picture. The components which have the "*" value are DNP components.

I am sure the oscilator is well, because I have put it on the Freedom board. Ant it  worked well. It's like something wrong with my hardware. But I can't find it. Could you help me fix it.

Thanks!

[Ricardo_Zamora]

Hi,

Hope you are doing well. Are you connecting your 32M XTAL to pins 29 (XTAL_OUT) and 31 (XTAL)?

Could you please check the Hardware Design Files of our FRDM-KW38?

There you can see that our 32MHz XTAL is connected to pins 30 (EXTAL) and 31 (XTAL).

Best Regards,

Ricardo