JianyuWang0623 commented on PR #16094:
URL: https://github.com/apache/nuttx/pull/16094#issuecomment-2765601250

   > I think G and B channels are at inverted positions. When it should be Blue 
it is Green and when it should be Green it is Blue
   
   @acassis 
   It seems that the RGB data endian was mismatch. The host is in little endian 
while the LCD controller ST7789 in big endian by default. It goes well after 
enabling the newly added configuration `ST7789_DATA_ENDIAN_LITTLE`. Please see 
the 
[comparation](https://github.com/apache/nuttx/compare/188da09c588477abb7b19996b3679a2d6b1f814e..d75802355b4f206893a48a4e0d25d3b6403b1766)
 above for details.
   
![lckfb-szpi-esp32s3-lcd](https://github.com/user-attachments/assets/821dd1e4-b724-4db1-a3fa-08e61e73aca8)
   


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