S32K RTC Demo Bug

[kawadaxi]

Hi, I have imported Demo project "rtc_alarm_s32k144" to S32DS ,However ,I found the Interrupt peroid is not 1 second in function "secondsISR()", Actually it is far less than 1 second。

On the other way, it will work well if i change ".clockSelect" to RTC_CLK_SRC_LPO_1KHZ, as below.

Can somebody tell me why? Thanks.

[danielmartynek]

Hi,

The LPOCLKS[RTCCLKSEL] register is a write-once register.

It is reset only on POR or LVD.

So please run the code from Flash, not RAM, and power-on reset the MCU.

Regards,

Daniel