Kontron KTT20-pITX - Manual (Page 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
0 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
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
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