topic Time needed for ROM boot loader to start secondary boot loader in i.MX6 in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/Time-needed-for-ROM-boot-loader-to-start-secondary-boot-loader/m-p/378211#M54271 <HTML><HEAD></HEAD><BODY><P>Greetings,</P><P></P><P>I have&nbsp; board&nbsp; based on i.MX6 and configured&nbsp; with PARALLEL NOR&nbsp; (EIM) as the boot device.</P><P>XTALOSC =24 MHZ and the data width of NOR is 16.</P><P></P><P>As per RM&nbsp; below are the cloks at&nbsp; boot time.</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="clocks.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/46024i2D215EB467B2C7A1/image-size/large?v=v2&amp;px=999" role="button" title="clocks.png" alt="clocks.png" /></span></P><P>My question is , </P><P></P><P>After the&nbsp; power good signal, how much time does it take to run the first instruction of a secondary boot loader (considering BT_FREQ=0)?</P><P>XTALOSC =24 MHZ, System PLL = 792 </P><P>NOR&nbsp; DATA Width = 16.</P><P>NOR&nbsp; ADDR Width = 25.</P><P></P><P>Thanks for your heads up.</P></BODY></HTML> Thu, 18 Sep 2014 07:20:39 GMT krishnanp 2014-09-18T07:20:39Z Time needed for ROM boot loader to start secondary boot loader in i.MX6 https://community.nxp.com/t5/i-MX-Processors/Time-needed-for-ROM-boot-loader-to-start-secondary-boot-loader/m-p/378211#M54271 <HTML><HEAD></HEAD><BODY><P>Greetings,</P><P></P><P>I have&nbsp; board&nbsp; based on i.MX6 and configured&nbsp; with PARALLEL NOR&nbsp; (EIM) as the boot device.</P><P>XTALOSC =24 MHZ and the data width of NOR is 16.</P><P></P><P>As per RM&nbsp; below are the cloks at&nbsp; boot time.</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="clocks.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/46024i2D215EB467B2C7A1/image-size/large?v=v2&amp;px=999" role="button" title="clocks.png" alt="clocks.png" /></span></P><P>My question is , </P><P></P><P>After the&nbsp; power good signal, how much time does it take to run the first instruction of a secondary boot loader (considering BT_FREQ=0)?</P><P>XTALOSC =24 MHZ, System PLL = 792 </P><P>NOR&nbsp; DATA Width = 16.</P><P>NOR&nbsp; ADDR Width = 25.</P><P></P><P>Thanks for your heads up.</P></BODY></HTML> Thu, 18 Sep 2014 07:20:39 GMT https://community.nxp.com/t5/i-MX-Processors/Time-needed-for-ROM-boot-loader-to-start-secondary-boot-loader/m-p/378211#M54271 krishnanp 2014-09-18T07:20:39Z Re: Time needed for ROM boot loader to start secondary boot loader in i.MX6 https://community.nxp.com/t5/i-MX-Processors/Time-needed-for-ROM-boot-loader-to-start-secondary-boot-loader/m-p/378212#M54272 <HTML><HEAD></HEAD><BODY><P>Hi Krishnan</P><P></P><P>please look below</P><P></P><P><A href="https://community.nxp.com/message/304048">ROM Code Boot Time Measurements</A></P><P></P><P>Best regards</P><P>igor</P><P>-----------------------------------------------------------------------------------------------------------------------</P><P>Note: If this post answers your question, please click the Correct Answer button. Thank you!</P><P>-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Thu, 18 Sep 2014 09:20:14 GMT https://community.nxp.com/t5/i-MX-Processors/Time-needed-for-ROM-boot-loader-to-start-secondary-boot-loader/m-p/378212#M54272 igorpadykov 2014-09-18T09:20:14Z