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Orange Pi Zero Random Lockups

jstefanop
in Allwinner sunxi

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We have deployed the zero for an integrated MCU on one of our products, and in rare occasions we are experience random lockups of the MCU (possibly related to overheating). Its pretty much impossible to debug this since it happens very rarely, but we are trying to mitigate all possible causes. The MCU is controlling a bigger and more expensive board and a fan. If there are internal failsafes that are being triggered by the MCU and locking it up (like temp) we want to disable as many of them as possible (we would rather have the MCU burn up than our main board). 

 

Anyone have any insights on orange pi zero OTP or OCP in kernel or uboot parameters we can disable?

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