https://community.nxp.com/t5/i-MX-Processors/iMx28-power-rail-voltage-problem/m-p/840074#M128867 <HTML><HEAD></HEAD><BODY><P>Hello <A _jive_internal="true" data-content-finding="Community" data-userid="321416" data-username="ashutosh@zmail.ecil.co.in" href="https://community.nxp.com/people/ashutosh@zmail.ecil.co.in">Ashutosh</A>,</P><P>&nbsp;&nbsp;&nbsp;</P><P>&nbsp;&nbsp; The current situation you are facing is :</P><P>(1) Two boards are working fine, no any problem.</P><P>(2) Another 2 boards with the same design as above, but they don't normally work. Getting 0.7v for 3.3v &amp; 0.9v for 1.8v. RIGHT?</P><P></P><P>If yes,&nbsp; my advice is :</P><P>(1) check if there exists on SMT.</P><P>(2) measuring volatge of PSWITCH pin. The pin's voltage will determine if DC-DC converter starts up. see below, please!</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/62621iCE88DAD462E4EA7E/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P>Have a nice day!</P><P>Best Regards,</P><P>Weidong Sun</P></BODY></HTML> Fri, 10 Aug 2018 09:22:35 GMT weidong_sun 2018-08-10T09:22:35Z https://community.nxp.com/t5/i-MX-Processors/iMx28-power-rail-voltage-problem/m-p/840073#M128866 <HTML><HEAD></HEAD><BODY><P>We have designed a board using iMx28. Two boards are fabricated, assembled &amp; working fine.</P><P>Now, our plan is to go for production. Before that we got another 2 boards assembled.</P><P>But, in these boards, not getting processor voltages properly.</P><P>Getting 0.7v for 3.3v &amp; 0.9v for 1.8v.</P><P></P><P>What can be the reason?</P><P>We are having very less time to meet the schedules.</P><P>Pl help us to resolve the issue ASAP.</P><P></P><P></P><P>Thank You</P></BODY></HTML> Fri, 10 Aug 2018 03:53:46 GMT https://community.nxp.com/t5/i-MX-Processors/iMx28-power-rail-voltage-problem/m-p/840073#M128866 ashutosh 2018-08-10T03:53:46Z https://community.nxp.com/t5/i-MX-Processors/iMx28-power-rail-voltage-problem/m-p/840074#M128867 <HTML><HEAD></HEAD><BODY><P>Hello <A _jive_internal="true" data-content-finding="Community" data-userid="321416" data-username="ashutosh@zmail.ecil.co.in" href="https://community.nxp.com/people/ashutosh@zmail.ecil.co.in">Ashutosh</A>,</P><P>&nbsp;&nbsp;&nbsp;</P><P>&nbsp;&nbsp; The current situation you are facing is :</P><P>(1) Two boards are working fine, no any problem.</P><P>(2) Another 2 boards with the same design as above, but they don't normally work. Getting 0.7v for 3.3v &amp; 0.9v for 1.8v. RIGHT?</P><P></P><P>If yes,&nbsp; my advice is :</P><P>(1) check if there exists on SMT.</P><P>(2) measuring volatge of PSWITCH pin. The pin's voltage will determine if DC-DC converter starts up. see below, please!</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/62621iCE88DAD462E4EA7E/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P>Have a nice day!</P><P>Best Regards,</P><P>Weidong Sun</P></BODY></HTML> Fri, 10 Aug 2018 09:22:35 GMT https://community.nxp.com/t5/i-MX-Processors/iMx28-power-rail-voltage-problem/m-p/840074#M128867 weidong_sun 2018-08-10T09:22:35Z