Hi @mingimin
The header files are located under RTD → include within the project directory.
Additionally, I recommend reviewing the S32K3/S32M27x SPI Driver Integration Manual and the User Manual included with the RTDs. These documents provide detailed information about the driver, including its limitations, hardware and software requirements, usage guidelines, and configuration instructions. They are helpful for a deeper understanding of the driver's behavior and capabilities.
You can find these resources, for example, at the following path: C:\NXP\S32DS.3.5\S32DS\software\PlatformSDK_S32K3\RTD\Spi_TS_T40D34M50I0R0\doc
Please note that the exact path may vary depending on the S32DS version and your installation directory.
BR, VaneB