kw36 - How to adjust 32MHz external oscillator in SDK_2_2_9_FRDM-KW36?

[jictannu]

In SDK_2_2_9_FRDM-KW36, I adjust mXtalTrimDefault does not work and found that the XCVR_SetXtalTrim is no longer called。

in SDK_2.2.3_FRDM-KW36 Ble_RadioInit:

in SDK_2_2_9_FRDM-KW36 Ble_RadioInit:

[Ricardo_Zamora]

Hi,

Hope you are doing well. You can use the same API (xcvrStatus_t XCVR_SetXtalTrim(uint8_t xtalTrim);).

This function is part of the Customer level trim functions.

Best Regards,

Ricardo

[jictannu]

Hi, Ricardo

But now that XCVR_SetXtalTrim is no longer used in SDK_2_2_9_FRDM-KW36, does it mean that mXtalTrimDefault is no longer useful?

[Ricardo_Zamora]

Hi,

It is not used in the Ble_RadioInit function, but still the XCVR_SetXtalTrim function can be used.

Do you have a problem using it?

Regards,

Ricardo

[jictannu]

Hi, Ricardo

Then mXtalTrimDefault is not actually used in SDK_2_2_9_FRDM-KW36. In this case, how to adjust the external oscillator of 32MHz in SDK_2_2_9_FRDM-KW36?

[Ricardo_Zamora]

Hi,

You can use the (void)XCVR_SetXtalTrim( (uint8_t)gHardwareParameters.xtalTrim ); in the same way as in the older version.

If this function is not used (like in 2.2.9), the XtalTrim value is 75.

Regards,

Ricardo