topic S32K RTC Demo Bug in S32K https://community.nxp.com/t5/S32K/S32K-RTC-Demo-Bug/m-p/727962#M1793 <HTML><HEAD></HEAD><BODY><P>Hi, I have imported Demo project "rtc_alarm_s32k144" to&nbsp;S32DS ,However ,I found the Interrupt peroid is not 1 second in function "secondsISR()", Actually it is far less than 1 second。</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_2.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/38290i4CA3316F3F70A83F/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_2.png" alt="pastedImage_2.png" /></span></P><P></P><P></P><P>On the other way, it will work well if i change ".clockSelect" to&nbsp;RTC_CLK_SRC_LPO_1KHZ, as below.</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/37929i86F1E9B8EDF671DC/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P></P><P>Can somebody tell me why? Thanks.</P></BODY></HTML> Mon, 05 Mar 2018 10:52:58 GMT kawadaxi 2018-03-05T10:52:58Z S32K RTC Demo Bug https://community.nxp.com/t5/S32K/S32K-RTC-Demo-Bug/m-p/727962#M1793 <HTML><HEAD></HEAD><BODY><P>Hi, I have imported Demo project "rtc_alarm_s32k144" to&nbsp;S32DS ,However ,I found the Interrupt peroid is not 1 second in function "secondsISR()", Actually it is far less than 1 second。</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_2.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/38290i4CA3316F3F70A83F/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_2.png" alt="pastedImage_2.png" /></span></P><P></P><P></P><P>On the other way, it will work well if i change ".clockSelect" to&nbsp;RTC_CLK_SRC_LPO_1KHZ, as below.</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/37929i86F1E9B8EDF671DC/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P></P><P>Can somebody tell me why? Thanks.</P></BODY></HTML> Mon, 05 Mar 2018 10:52:58 GMT https://community.nxp.com/t5/S32K/S32K-RTC-Demo-Bug/m-p/727962#M1793 kawadaxi 2018-03-05T10:52:58Z Re: S32K RTC Demo Bug https://community.nxp.com/t5/S32K/S32K-RTC-Demo-Bug/m-p/727963#M1794 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>The LPOCLKS[RTCCLKSEL] register is a write-once register.</P><P>It is reset only on POR or LVD.</P><P>So please run the code from Flash, not RAM, and power-on reset the MCU.</P><P>&nbsp;</P><P>Regards,</P><P>Daniel</P></BODY></HTML> Fri, 09 Mar 2018 13:19:28 GMT https://community.nxp.com/t5/S32K/S32K-RTC-Demo-Bug/m-p/727963#M1794 danielmartynek 2018-03-09T13:19:28Z