KS22XXX RTC REGISTER FAULT

召宝田 — Thu, 01 Feb 2018 10:10:22 GMT

Hi,

Now I'm working on KS22xxxx. There is a problem that when I was initializing the RTC module through writing or reading the register of it, the processor would report a HARDWARE FAULT. I'm wondering what I have done have any issues.

Following is my code.

rtc_datetime_t mrtc_datetime_t;

rtc_config_t mrtc_config_t;

memset(&mrtc_datetime_t,0,sizeof(rtc_datetime_t));

RTC_GetDefaultConfig(&mrtc_config);

RTC_Init(RTC,&mrtc_config_t);

RTC_StartTimer(RTC);

Re: KS22XXX RTC REGISTER FAULT

mjbcswitzerland — Thu, 01 Feb 2018 13:52:12 GMT

Before accessing RTC register you need to enable the RTC clock kin SIM_SCGC6. If not, you will have a hard fault.

In addition, VBAT needs to be connected!

Regards

Mark

topic KS22XXX RTC REGISTER FAULT in Kinetis Microcontrollers

KS22XXX RTC REGISTER FAULT

Re: KS22XXX RTC REGISTER FAULT