Kontron KTT20-pITX Instrukcja Użytkownika Pobierz pdf (Strona 9)

KTD-S0045-D Page 5 U-Boot Setup

KTT20/pITX Software Guide

2.3.3 Backlight Brightness

This submenu allows the definition of the analog backlight brightness (voltage range: 0V to +5V). The input

format is represented by a decimal number with maximal three digits.

Examples:

Brightness: 0 minimal value = 0V

Brightness: 128 half range = +2.5V

Brightness: 255 maximal value = +5V

2.3.4 Backlight Output Level

Some backlight inverters need a low level for the enable signal, other inverters a high level (normally +5V).

Use this submenu to configure the right enable output level; two options are available

low voltage = 0V

high voltage = +5V

2.4 Devices Menu

This menu part defines several hardware device settings

PCI Express settings

Audio settings

GPIO settings

2.4.1 PCI Express

Interface

The selection is limited to the enable respectively disable feature

disabled

enabled

2.4.2 Audio Device

The selection is also limited to the enable respectively disable feature

disabled

enabled

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Kontron KTT20-pITX Instrukcja Użytkownika Strona 9