Hello @zhouqicheng,
I am not sure I am understanding your question, what do you mean by "NXP main chip"?
If you are looking for a flight controller, I can recommend you the VEHICLE-MANAGEMENT-UNIT, which is prepared to use with the PX4 V6X standard, you can learn more about it here nxp_mr_vmu_rt1176.
Let me know if this information solves your question.
Best regards
