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melexis / mlx90632-library

MLX90632 library for the Melexis 90632 Infra Red temperature sensor.
Apache License 2.0
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Extended range measurement #39

Closed MarsHo1970 closed 2 years ago

MarsHo1970 commented 2 years ago 
Merry Christmas!
Which chip does the extended mode apply to?
My chiptype is "MLX90632SLDBCB-000RE",
I found that the extended mode measurement is incorrect.
Can you help me？
Letme commented 2 years ago

Can you read registers? Then you can check in code which version your chip was calibrated to.

MarsHo1970 commented 2 years ago

Thank you for your help The contents of the register I read are shown in the picture.

Access | Address | Name | Description | Readout -- | -- | -- | -- | -- Read-only | 0x2405 | ID0[15:0] | Chipversion | 0X5018 Read-only | 0x2406 | ID1[15:0] | Chipversion | 0XE6E5 Read-only | 0x2407 | ID2[15:0] | Chipversion | 0XE584 Read-only | 0x2408 | ID_CRC16 | CRC | 0X0000 Read-only | 0x2409 | EE_PRODUCT_CODE | Sensorinformation | 0X0000 Read-only | 0x240B | EE_VERSION | EEPROMversion | 0X0205
MarsHo1970 commented 2 years ago

Is there anything unusual?

Letme commented 2 years ago

A quick check at source code you might as well see if you get ERANGE value from the mlx90632_init function (https://github.com/melexis/mlx90632-library/blob/master/src/mlx90632.c#L467-L469). I am currently only looking at online stuff so define-resolution of address/value supported is up to you.

MarsHo1970 commented 2 years ago

Thank you for your help！