topic What is in the Kinetis Bootloader Configuration Area (BCA) at the factory default ? in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/What-is-in-the-Kinetis-Bootloader-Configuration-Area-BCA-at-the/m-p/629552#M37858 <HTML><HEAD></HEAD><BODY><P>I need enter to KL82Z bootloader with&nbsp;BOOTCFG0 and NMI pin assertation.&nbsp;<BR />When I used bootloader configuration file <EM>system_MKL82Z7.c&nbsp;</EM>and download code to board and try enter to bootloader with NMI pin, it succeeds.<BR /><BR />How enter to bootloader without using bootloader configuration file, when chip is new (from factory), without code?<BR /><BR /><BR /></P></BODY></HTML> Wed, 29 Mar 2017 10:15:13 GMT rysardsuboc 2017-03-29T10:15:13Z What is in the Kinetis Bootloader Configuration Area (BCA) at the factory default ? https://community.nxp.com/t5/Kinetis-Microcontrollers/What-is-in-the-Kinetis-Bootloader-Configuration-Area-BCA-at-the/m-p/629552#M37858 <HTML><HEAD></HEAD><BODY><P>I need enter to KL82Z bootloader with&nbsp;BOOTCFG0 and NMI pin assertation.&nbsp;<BR />When I used bootloader configuration file <EM>system_MKL82Z7.c&nbsp;</EM>and download code to board and try enter to bootloader with NMI pin, it succeeds.<BR /><BR />How enter to bootloader without using bootloader configuration file, when chip is new (from factory), without code?<BR /><BR /><BR /></P></BODY></HTML> Wed, 29 Mar 2017 10:15:13 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/What-is-in-the-Kinetis-Bootloader-Configuration-Area-BCA-at-the/m-p/629552#M37858 rysardsuboc 2017-03-29T10:15:13Z Re: What is in the Kinetis Bootloader Configuration Area (BCA) at the factory default ? https://community.nxp.com/t5/Kinetis-Microcontrollers/What-is-in-the-Kinetis-Bootloader-Configuration-Area-BCA-at-the/m-p/629553#M37859 <HTML><HEAD></HEAD><BODY><P>Hi Rysard Suboc,</P><P>&nbsp;&nbsp;&nbsp; The KL82 boot source is from ROM in default if you didn't download the code before.</P><P>&nbsp;&nbsp;&nbsp; Boot source selection bit is in the FOPT, the flash address is 0X40D.</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/17601iAFCD4618685019DA/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P>FOPT default data is 0xff, it means the code is boot from the ROM in default.</P><P>About the BCA, it is in default all 0xff, it means the KL82 already enable all the perpherals(LPUART, I2C, SPI and USB).</P><P></P><P>Wish it helps you!</P><P></P><P><BR />Have a great day,<BR />Kerry</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Wed, 05 Apr 2017 05:54:41 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/What-is-in-the-Kinetis-Bootloader-Configuration-Area-BCA-at-the/m-p/629553#M37859 kerryzhou 2017-04-05T05:54:41Z