Hi @pcpro1789 ,
Thanks for your interest in NXP MIMXRT series!
The official release does not publicize the exact code, however, it is possible to derive this calculation based on the setup in the user manual .If you need to use this calculation in your application, you may need to write the application code yourself.
Gavin_Jia_0-1727604037716.png
Gavin_Jia_1-1727604091455.png
The calculation results of the Demo in the SDK are the same as those in this online tool(Chinese version), and you can refer to this online tool to write the application code: https://www.toolhelper.cn/DigestAlgorithm/CRC
Gavin_Jia_2-1727604222505.png
Best regards,
Gavin