Is the serial number on the EVE display you mentioned the number on the BT817 chip? If so, the number is "KM21G BT817Q 2208-B". I hope to get your help as soon as possible. I don't know how to perform QSPI read and write.

Hello, I am using `https:// github.com/matrixorbital/eve2-library` to drive the LCD screen. The QSPI protocol connection I use will be connected to the BT817. It was changed to QSPI, but it didn't seem to play any role, and still could not light up the screen:

`` `c
/*
* hw_api.c
*
* Created on ...