Capacitive touchscreen displays generally provide a higher quality and better user experience than traditional resistive touchscreen displays. This reference design shows how to interface a capacitive touchscreen display to the Sitara AM437x processors. The display has an integrated touchscreen controller that interfaces with the AM437x via its I2C port.
Merkmale
- Color 7-Inch TFT LCD panel with capacitive touch user interface
- WVGA 800x480 pixel resolution with 24-bit RGB interface
- LCD interface connected to the integrated DSS (Display Sub-System) of the Sitara AM437x processor
- Capacitive Touch Screen connected to the Sitara AM437x processor over I2C
- 27 white LED's for backlight controlled TPS61081 PWM controlled LED driver
- The required power for the LCD is provided by the TPS65105 Linear regulator supply.
- Complete sub-system reference with schematics, BOM, design files, and HW User's Guideimplemented on a fully assembled board developed for testing and validation.