https://community.nxp.com/t5/High-Performance-Analog-Front/PCF85263A-Weekday-always-0/m-p/2055559#M13 <P>Anyone having an issue with the PCF85263A RTC where the weekday value is always 0?</P><P>The seconds, minutes, hours, month, month day, and year values are all accurate.</P><P>I have attached a picture of a buffer containing the seconds, minutes, hours, month days, weekdays, months, and years. The weekdays value is always 0.</P> Tue, 04 Mar 2025 14:04:35 GMT jharris_rhi 2025-03-04T14:04:35Z https://community.nxp.com/t5/High-Performance-Analog-Front/PCF85263A-Weekday-always-0/m-p/2055559#M13 <P>Anyone having an issue with the PCF85263A RTC where the weekday value is always 0?</P><P>The seconds, minutes, hours, month, month day, and year values are all accurate.</P><P>I have attached a picture of a buffer containing the seconds, minutes, hours, month days, weekdays, months, and years. The weekdays value is always 0.</P> Tue, 04 Mar 2025 14:04:35 GMT https://community.nxp.com/t5/High-Performance-Analog-Front/PCF85263A-Weekday-always-0/m-p/2055559#M13 jharris_rhi 2025-03-04T14:04:35Z https://community.nxp.com/t5/High-Performance-Analog-Front/PCF85263A-Weekday-always-0/m-p/2055746#M14 <P>Hello,</P> <P>Does this still happen even after a reset? The default value should be Saturday (110 in BCD). If so, what value are you writing to that register?</P> <DIV id="tinyMceEditorErikaC_0" class="mceNonEditable lia-copypaste-placeholder">&nbsp;</DIV> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="weekdaysregister.jpg" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/326735i4B975F1D895B492C/image-size/medium?v=v2&amp;px=400" role="button" title="weekdaysregister.jpg" alt="weekdaysregister.jpg" /></span> </P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="weekdaysassigments.jpg" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/326736iD68101F639A87B04/image-size/medium?v=v2&amp;px=400" role="button" title="weekdaysassigments.jpg" alt="weekdaysassigments.jpg" /></span></P> <P>  </P> <P>&nbsp;</P> <P>&nbsp;</P> <P>&nbsp;</P> Tue, 04 Mar 2025 20:10:45 GMT https://community.nxp.com/t5/High-Performance-Analog-Front/PCF85263A-Weekday-always-0/m-p/2055746#M14 ErikaC 2025-03-04T20:10:45Z https://community.nxp.com/t5/High-Performance-Analog-Front/PCF85263A-Weekday-always-0/m-p/2055756#M15 <P>After reset, I am seeing a 6 for the weekday. After setting the time again, I found a bug in my code. Issue resolved. Thanks for answering.</P> Tue, 04 Mar 2025 20:33:01 GMT https://community.nxp.com/t5/High-Performance-Analog-Front/PCF85263A-Weekday-always-0/m-p/2055756#M15 jharris_rhi 2025-03-04T20:33:01Z