The lower 4 bits of register 0x814E tell you how many fingers (0–5) are currently on the screen.
| Register | Description | |----------|-------------| | 0x80FE | Config checksum (calculated by host) | | 0x80FF | Config update flag (write 0x01 to reload config from host) |
The is a 16-bit addressing scheme used to configure and read data from the Goodix GT911 capacitive touch controller. This high-performance IC supports up to 5-point multi-touch and communicates with a host processor via a standard I2C interface with speeds up to 400 kHz. GT911 Register Map Overview
Used to send commands (e.g., reset, sleep) and check current chip status. Configuration
Perhaps the most dramatic entry in the register map is the .
The GT911 is a popular capacitive touch controller chip used in a wide range of applications, from smartphones and tablets to industrial control systems and automotive infotainment systems. One of the key aspects of working with the GT911 is understanding its register map, which is essential for configuring and controlling the chip's various functions. In this article, we will provide a detailed overview of the GT911 register map, including its structure, contents, and applications.
