I finally managed to build a test setup: The right image shows the display driven with all 5 COMs connected to COM0 to COM4. As you may see, the intensity is reduced. For comparison, see the left image, where I connected one segment Line to ground. This shows how the display should look. Register settings: LCDM0 = _20_LCD_DISPLAY_WAVEFORM_B | _16_LCD_DISPLAY_MODE0 | _40_LCD_VOLTAGE_MODE_INTERNAL; LCDM1 = _00_LCD_DISPLAY_PATTERN_A; LCDC0 = 7; VLCD = 0x0A; I already tried various waveform/clock combinations but none gave significant improvement. Is there anything left I can try to increase the intenisty?
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