pls refer to the application note I sent to you, did you refer to this? let me send to you again
i.MX 8M Applications Processor | Arm® Cortex®-A53, Cortex-M4 | 4K display resolution | NXP
pls find "Quick Start Guide for MINISASTOCSI for i.MX 8M Evaluation Kit "
you also can download it from the link I sent to you from my first reply