Hi,
I'd suggest you to read the SDK manual located here:
"<S32DS_ARM_v2018.R1>\S32DS\S32SDK_S32K1xx_BETA_2.9.2\doc\S32SDK_S32K144_UserManual.pdf"
or manual in HTML form:
"<S32DS_ARM_v2018.R1>\S32DS\S32SDK_S32K1xx_BETA_2.9.2\doc\Start_here.html"
Hope it helps.
Stan