S32K146 LPO clock source select

[ZhaozhangChen]

Hi

    I use the default LPO clock 128Khz in the BootLoader, but I need to use LPO clock 1Khz in the APP, but when I set LPO clock 1Khz when the BootLoader jumps to the APP, it does not take effect.The value of LPOCLKSEL register is 00b. Is there any way to set LPO to 1KHz in app.

[Senlent · Accepted solution]

Hi@ZhaozhangChen

The LPOCLKS register is a write-once register, and is reset only on POR or LVD.

please refer to S32K-RM,the chapter 11.3.1.4

BR!