I am using ADSP-21569 REV B board . We will able to do secure boot process using adi_rom_Boot() as per hardware reference manual . While referring the EE -336 doc they described about the procedure to do secure boot using secureBoot_OpenPart Directory for adsp-SC58x processor. Shall I follow the same configurations procedure for ADSP-21569 processor / whether the Configuration of Secure Boot for the both processor are the same ?. Is their any other way to implement the secure booting in ADSP-21569 PROCESSOR without using OTP programmer(without writing any keys into the OTP memory)?.