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1646917_en-US

1646917_en-US

mm9z1_638 offset step over the range

Hi Nxp partner

After we perform the calibration process for PTB ,we get the offset step is 7271 and gainstep is 1.

The range of Offset compensation is only -128~127. Offset step is 7271 is bigger than 127.

We cannot write 7271 to Offset compensation (offset ch ).

Can we first set offset compensation(offset ch ) to zero and then

add  ptb offset compensation formula   (see the attached file.   before sending ptb 

measurement value .


Br,

Mike Liang

Re: mm9z1_638 offset step over the range

Hello,

Please refer to MM9Z1_638_calibration_v2.xlsx (attached) for details on the calculation.

Hope this helps.

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Last update:
‎02-04-2026 07:34 AM
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