Temperature Sensor Calibration

eishishibusawa — Mon, 13 Nov 2017 01:44:22 GMT

Dear Sir

I want to ask you about the Temperature Monitor.

I understand that the Temperature Sensor Calibration Data is stored in OCOTP_ANA1.

It is described at P5172 in IMX6SDLRM Rev.2 as following.

"The temperature calibration values are fused individually for each part in the product testing process."

Q1.

Can I understand that the calibration value is written at the factory of NXP?

Best Regards,

Eishi SHIBUSAWA

Re: Temperature Sensor Calibration

weidong_sun — Mon, 13 Nov 2017 04:16:34 GMT

Hello Eishi,

It means: There is a temperature sensor in i.MX6 processor, and it's value has been calibrated duiring product testing process.

In software, for example, in u-boot, linux kernel, it's driver is named "thermal_imx.c", customer can configure MIN temperature and MAX temperature for her application.

Have a great day,
TIC weidong sun

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Temperature Sensor Calibration

Re: Temperature Sensor Calibration