Need the full 200+ register guide? Download the (Goodix official).
sometimes used for firmware/product ID; implementations vary — read product ID to confirm. gt911 register map
The GT911 operates as an I2C slave. Before accessing the register map, you must establish the correct slave address. Need the full 200+ register guide
If you hard-code a swap, but forget to swap your width/height registers, the touch point will be a mirror image across the diagonal. It’s a riddle wrapped in an enigma. The register map is logically laid out, but the interdependence of these bytes feels like a puzzle box. gt911 register map
to clear the buffer status so the chip can update with new data. Focus LCDs