I have attached the GC9A01 sample driver code (header file) that shows the initialization code starting on line 385. I have not yet run the demo code but I am sure it will work, but I wanted to understand exactly what all the initialization commands are doing. I contacted BuyDisplay and they said " Unfortunately we don't have more specific datasheet for reference, The chip supplier only provided that datasheet to us." I would say approx 70% are not documented. Problem I have is that the demo code references command codes in the display initialization that are not documented in the driver datasheet. The site gives sample demo code (download) that is written by the manufacturer of the display "EastRising" and also links to the GC9A01 driver datasheet here. I recently purchased the "1.28'' IPS TFT LCD Display 240x240 Round Circle Screen for Smart Watch" here: buydisplay
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