Dear NXPs:
background:
CMD_BOOT_DEFINE→BootManager 6KB Use CSEC's secureboot mechanism for verification.
The secondary verification area is Flex NVM Bootloader;
The area of third-level verification is Application;
Use CSEC's secureboot mechanism to verify the BootManager image. Select A. Sequential Boot Mode during the development phase; select B. Strict Sequential Boot Mode during the mass production phase.
Question：
Q1: We learned from AN5401 that no matter you choose A or B, when the Secureboot verification fails, the chip will cycle through Reset to execute the ROM verification code. As a result, the device cannot enter the normal application. Unable to boot errors may also occur after mass production. To facilitate investigation, how can I eliminate secureboot issues? The CSEC module does not seem to output some debugging information.
