https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-Switch-RTC-from-External-Oscillator-to-Internal/m-p/1931505#M66656 <P>Hi,</P> <P>Thank you so much for your interest in our products and for using our community.</P> <P>Yes, there is no documentation/demos about that. But personally is more illustrative/easiest work with clocks configuration with <EM>Clocks Tool</EM> from <EM>Config Tool</EM>.</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="_Leo__0-1723590260571.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/293229iC18C7DD09C6650C2/image-size/medium?v=v2&amp;px=400" role="button" title="_Leo__0-1723590260571.png" alt="_Leo__0-1723590260571.png" /></span></P> <P>Hope it helps you.</P> <P>Have a nice day!</P> Tue, 13 Aug 2024 23:04:58 GMT _Leo_ 2024-08-13T23:04:58Z https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-Switch-RTC-from-External-Oscillator-to-Internal/m-p/1931040#M66654 <P>Hello,</P><P>I am working on a project using the NXP MKM34Z256 microcontroller, and I need to change the RTC clock source from the external oscillator (32.768 kHz) to the internal LPO (1 kHz). I've been referencing the NXP documentation and SDK examples, but I'm encountering issues with the transition.</P><P>Could someone provide guidance or a correct procedure for switching the RTC clock source from the external 32.768 kHz oscillator to the internal 1 kHz LPO on the MKM34Z256? Any sample code or references to documentation would be greatly appreciated.</P><P>Thank you in advance for your help!</P><P>Best regards,<BR />&nbsp;Raj.</P> Tue, 13 Aug 2024 10:06:13 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-Switch-RTC-from-External-Oscillator-to-Internal/m-p/1931040#M66654 Gohil 2024-08-13T10:06:13Z https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-Switch-RTC-from-External-Oscillator-to-Internal/m-p/1931505#M66656 <P>Hi,</P> <P>Thank you so much for your interest in our products and for using our community.</P> <P>Yes, there is no documentation/demos about that. But personally is more illustrative/easiest work with clocks configuration with <EM>Clocks Tool</EM> from <EM>Config Tool</EM>.</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="_Leo__0-1723590260571.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/293229iC18C7DD09C6650C2/image-size/medium?v=v2&amp;px=400" role="button" title="_Leo__0-1723590260571.png" alt="_Leo__0-1723590260571.png" /></span></P> <P>Hope it helps you.</P> <P>Have a nice day!</P> Tue, 13 Aug 2024 23:04:58 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-Switch-RTC-from-External-Oscillator-to-Internal/m-p/1931505#M66656 _Leo_ 2024-08-13T23:04:58Z