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1021a board bring up replace CPLD with Atmega328P

Question asked by Elias Bitbaker on Nov 24, 2019
Latest reply on Dec 12, 2019 by Elias Bitbaker

Hi Guys,


I have a standalone ls1021a, eMMC, a Atemega328P chipset on the board and a JTAG interface. I want to bring the board up to initiates the power-on reset flow. I am trying to implement the CPLD logic into C using Atemega328P to achieve the board initialization stage.


Does any one know how many signals do I need to consider which I need to trigger them in the right sequence?


According to the QorIQ LA1021A Reference Manual.


I also have a question specifically during the POR sequence,

Do I have to give a signal to the cfg_eng_use0 or once the POR starts everything will be handled by itself.