topic Fota , secure boot, Trustzone and secondary bootloader for the LPC55S69 in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/Fota-secure-boot-Trustzone-and-secondary-bootloader-for-the/m-p/1319920#M46090 <P>Hello,<BR />We have an application where we want to update the LPC55S69 over RF. The LPC55S receives new firmware fragments and stores them in&nbsp; Flash. This microcontroller has trustzone enabled with secure boot. The received image is signed with ROT and gets stored in encrypted flash region. Is&nbsp;&nbsp;the secondary bootloader able to check the new firmware signature and how can it handle the secure and non secure firmware. Is this all even possible?<BR />Bests<BR /><BR /></P> Sat, 07 Aug 2021 08:26:55 GMT gnichimohamed 2021-08-07T08:26:55Z Fota , secure boot, Trustzone and secondary bootloader for the LPC55S69 https://community.nxp.com/t5/LPC-Microcontrollers/Fota-secure-boot-Trustzone-and-secondary-bootloader-for-the/m-p/1319920#M46090 <P>Hello,<BR />We have an application where we want to update the LPC55S69 over RF. The LPC55S receives new firmware fragments and stores them in&nbsp; Flash. This microcontroller has trustzone enabled with secure boot. The received image is signed with ROT and gets stored in encrypted flash region. Is&nbsp;&nbsp;the secondary bootloader able to check the new firmware signature and how can it handle the secure and non secure firmware. Is this all even possible?<BR />Bests<BR /><BR /></P> Sat, 07 Aug 2021 08:26:55 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Fota-secure-boot-Trustzone-and-secondary-bootloader-for-the/m-p/1319920#M46090 gnichimohamed 2021-08-07T08:26:55Z Re: Fota , secure boot, Trustzone and secondary bootloader for the LPC55S69 https://community.nxp.com/t5/LPC-Microcontrollers/Fota-secure-boot-Trustzone-and-secondary-bootloader-for-the/m-p/1320709#M46110 <P>Hello&nbsp;<SPAN>gnichimohamed,</SPAN></P> <P><SPAN>How about have a look at AN12283:</SPAN></P> <P>&nbsp;</P> <P><A href="https://www.nxp.com.cn/docs/en/application-note/AN12283.pdf" target="_blank">https://www.nxp.com.cn/docs/en/application-note/AN12283.pdf</A>&nbsp;</P> Tue, 10 Aug 2021 02:59:05 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Fota-secure-boot-Trustzone-and-secondary-bootloader-for-the/m-p/1320709#M46110 Alice_Yang 2021-08-10T02:59:05Z