Hi Kai,
Yes, there is the MC3377x software driver including example projects for S32K144EVB-Q100 available at:
https://www.nxp.com/support/developer-resources/run-time-software/analog-expert-software-and-tools/s...

In addition to that, there is the AN12084 (MC33771B/MC33772B programming guide) providing basic guidelines for configuration and programming of the MC3377x. However, it is currently available for download from DocStore under NDA (Non-Disclosure Agreement) only:
https://www.docstore.nxp.com/products?path=/content/docstore/product-hierarchy/Automotive-Battery-Ma...
Best regards,
Tomas
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