AnsweredAssumed Answered

Random delays(upto 6 minutes) after closed the board for secure boot.

Question asked by Krishnan P on Dec 12, 2017
Latest reply on Dec 26, 2017 by Yuri Muhin

Hi,

I have enabled Secure boot on i.MX6 Dual Lite custom board. I have enabled RNG_TRIM fuse and closed for secure boot. However, I see a strange behavior like occasionally  the board is not able to boot up. TThis behavior observed in only on the boards which are closed for secure boot. The board has PMIC chip to  control the supply of various voltage levels.

 

I have gone through the datasheet  (Section 4.3.2.2 LDO_2P5 ( In i.MX6 Dual Lite datasheet)) that  mention about  the voltage requirement. Can anyone experienced similar  problems? I am particularly interested in the voltage levels and clocks needed for secure boot and OCOTP controller.

 

Thanks in Advance,

Krishnan.

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