Kontron KTT20-pITX - Manual (Page 7)

KTD-S0045-D Page 3 U-Boot Setup
KTT20/pITX Software Guide
2 U-Boot Setup
The sense of a special Setup part is to avoid expendable changes in the proper operating systems. The
Setup entries are valid for all supported operating systems (e.g. Linux
® , Android TM and Windows ® Em-
bedded Compact). For example if you switch from Linux ® to Android TM or vice versa in the ideal case no
changes will be necessary. The Setup data records are stored in a non-volatile memory (EEPROM) and not in
an erasable script. A possible password input protects from unauthorized access.
The KONTRON Setup provides three configurable main menus:
S
display
S
devices
S
misc
The display menu allows to define one or more boot displays, the resolution of a LCD panel and backlight
parameters. The devices part involves some hardware device settings, e.g. audio controller enabled or
disabled. The misc menu contains special features, e.g. temperature control.
ATTENTION
Only the original KONTRON BSPs guarantee the realization of the U-Boot Setup features.
2.1 Setup Command
For a help screen type the command without an argument
setup
Now you can see all the supported sub-commands (menus). Normally the following entries are displayed
S
display display settings
S
devices onboard device configuration
S
misc miscellaneous settings
S
password password input
S
defaults reset all settings to the default values
S
summary show all actual settings
S
save save all settings to EEPROM
Syntax example: setup display
2.2 Setup Usage
After the execution of a sub-command (e.g. setup misc) the selection of a submenu requires only a numeric
value. Thereafter the real settings are visible. Now you can choose between an alphanumeric (default) or a
numeric input. The alphanumeric presentation illustrates intuitive the right choice. If you favor the
numeric input delete all chars with the key, type the number and then press the key.
With the key previous keyboard inputs are recallable for a quick repetition of often used
commands.
After the completion of all changes it is reasonable to control the settings with the summary command.
Syntax:
setup summary