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Associate
July 5, 2026
Question

STM32N6570-DK: need factory GT911 touch-controller config (RK050HR18C-B01)

  • July 5, 2026
  • 1 reply
  • 50 views

The GT911 configuration (as far as I know registers 0x8047 - 0x8100, but maybe there is more?) on my module got overwritten by my experiments, and touch now has large dead zones, where no touch is registered at all. The driver/sensor channel map is specific to this panel and isn’t in any BSP, so I have no factory copy to restore from, and I also don’t have a 2nd board.

Could anyone with a working DK dump their GT911 config and paste the values? (Or does ST have the default config for this module, I sadly couldn’t find it anywhere?) From my understanding it should be as simple as:
 

uint8_t reg[2] = {0x80, 0x47};
uint8_t cfg[186];
i2c_write(0x5D, reg, 2);
i2c_read (0x5D, cfg, 186);

 

1 reply

KDJEM.1
ST Technical Moderator
August 28, 2026

Hello ​@NotANumber and welcome to the community;

 

You can find GT911 sensor in STM32H735G-DK board.

Also, I recommend you to look at BSP example in STM32CubeH7 under STM32Cube_FW_H7_Vx.x.x\Projects\STM32H735G-DK\Examples\BSP 

 

Thank you.

Kaouthar

 

 

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