i.MX8M mini SW calibration issue

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i.MX8M mini SW calibration issue

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Tori-san
Contributor III
Hello, According to the IMX8MMRM.pdf clause 5.4.5, software calibration method use Tcalib as part of the alpha. What means Tcalib in denominator of alpha? Is it a mistake in TE2? Tcalib_SW = alpha x (Tsense - TE1) + 25 alpha = (85-25)/(Tcalib - TE1)
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Yuri
NXP Employee
NXP Employee

@Tori-san 
Hello,

  yes, correct.

Regards,
Yuri.

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Yuri
NXP Employee
NXP Employee

@Tori-san 
Hello,

  yes, formula is incorrect  (misprint),  if Tcalib is not measured at 85 C.

Regards,
Yuri.

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Tori-san
Contributor III
Hi Yuri, Thank you for your reply. I think the following formula is also correct but how do you think of it? Tcalib_SW = ((85-25)/(TE2-TE1)) x (Tsense - TE2) + 85 Best regards, Tori-san.
671 Views
Yuri
NXP Employee
NXP Employee

@Tori-san 
Hello,

  yes, correct.

Regards,
Yuri.