Kontron KTT20-pITX Manual do Utilizador descarregar pdf (Página 11)

KTD-S0045-D Page 7 U-Boot Setup

KTT20/pITX Software Guide

2.5.5 Temperature Low Limit

The temperature low limit controls the alert output. Dependent on the extended temperature setting the

limit can be down to -55

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

Example:

Temp low limit: 5

2.6 Password Command

If you want to control the access to the Setup settings it is possible to use a password protection. Maximal

eight alphanumeric chars, numbers or special characters are admissible. You can delete an old password

respectively cancel the password protection with the input of an empty string.

Syntax:

setup password <Enter>

Example:

New password: ******** e.g. 12%&fgWQ

Verify password: ******** the same

2.7 Defaults Command

In some cases it can be useful to reset quickly the Setup settings. For an example there is a problem with

driving of a single

display - preferably a LCD panel - and the connection of a DVI

monitor is possible.

Syntax:

setup defaults <Enter>

The most important default settings are

First boot display none

Second boot display dvi

PCI Express settings enabled

Audio settings enabled

GPIO settings gpio

Extended temperature range disabled

2.8 Save Command

This is one of the most important sub-commands. Without this calling all Setup changes are lost after

power off. The save instruction writes the temporary Setup settings into the non-volatile memory device

(EEPROM).

Syntax:

setup save <Enter>

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