iMX6 on-die temperature measurement

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iMX6 on-die temperature measurement

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jaiganesh
Contributor III

Hello there,

Regarding the thermal management in iMX6, I can see that the bootloader (u-boot) does not allow to boot when the on-die temperature is greater than 80C. The macros used in bootloader are:

#define TEMPERATURE_MIN-40
#define TEMPERATURE_HOT80
#define TEMPERATURE_MAX125

Are these values with respect to commercial iMX6 processors or industrial iMX6 processors?

Thanks,

Jai Ganesh

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BiyongSUN
NXP Employee
NXP Employee

It is experience value for uboot  application layer. If the temp is great than 85C at uboot stage, normally linux could not run.

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Yuri
NXP TechSupport
NXP TechSupport

  The value TEMPERATURE_HOT in U-boot is set relatively low for assurance,

in order to avoid overheat issues. Note, the accuracy of the sensor is not high

(~10 degree). 


Have a great day,
Yuri

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