Gt911 Register Map |verified| Jun 2026

Defines the touch panel's pixel resolution, allowing the GT911 to map its physical sensor to the screen resolution.

Configures touch orientations, reversing X/Y axes, or swapping X and Y axes to match display rotations. 0x8056 (Interrupt Trigger Mode): 0x00 : Rising edge trigger 0x01 : Falling edge trigger 0x02 : Low-level trigger 0x03 : High-level trigger The Checksum and Update Flag gt911 register map

A critical nuance: The standard workflow is: Defines the touch panel's pixel resolution, allowing the

return touch_count;

The GT911 stores coordinates for up to 5 points. Each point takes 8 bytes of data, structured as follows: Identifies the finger. X Coordinate (Low/High): 16-bit X value. Y Coordinate (Low/High): 16-bit Y value. Size: Size of the touch point. For example, Point 1 data starts at 0x8150 . 2.3. Configuration Registers (0x8047 - 0x813F) Each point takes 8 bytes of data, structured

Note that this is not an exhaustive list of GT911 registers, but rather a selection of key registers discussed in this article. For a complete list of GT911 registers, refer to the GT911 datasheet or user manual.

Pull the Reset pin High while maintaining the state of the INT pin for another 10ms. Set the INT pin to an input or an interrupt-ready state. Step 2: Read Existing Configurations