6.1 LCD Touchscreen Limitation

Due to missing on-board pull-up resistors on the I²C bus, the LCD touchscreen feature might not work properly with all displays.

Workaround

If higher speeds are required, add 3.3 kOhm pull-up resistors to VDD_3V3 on signals LCD_TWD_PA30 and LCD_TWCK_PA31.

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