Kontron CP308, Руководство пользователя

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CP308 Functional Description
ID 1027-4487, Rev. 3.0 Page 2 - 11
P R E L I M I N A R Y
2.3.1.2 General Purpose LEDs
The CP308 provides four General Purpose LEDs (LED0..3) on the front panel. They are de-
signed to indicate the boot-up POST code after which they are available to the application.
If the LED0..3 are lit red during boot-up, a failure is indicated before the uEFI BIOS has started.
In this case, check the power supply. If the power supply appears to be functional and the LEDs
are still red, please contact Kontron.
The POST code is indicated during the boot-up phase. After boot-up, the LEDs indicate Gen-
eral Purpose or Port 80 signals, depending on the uEFI BIOS settings. The default setting after
boot-up is General Purpose.
For further information regarding the configuration of the General Purpose LEDs, refer to Chap-
ter 4.3.13, LED Configuration Register, and Chapter 4.3.14, LED Control Register.
Table 2-6: General Purpose LED Function
LED COLOR
FUNCTION
DURING BOOT-UP
FUNCTION DURING
uEFI BIOS POST
(if POST code config. is
enabled)
FUNCTION
AFTER BOOT-UP
LED3 red When lit up during boot-up, it indi-
cates a power failure. --
General Purpose or Port 80
Default: General Purpose
green -- uEFI BIOS POST bit 3
and bit 7
red+green -- --
LED2 red When lit up during boot-up, it indi-
cates a hardware reset. --
General Purpose or Port 80
Default: General Purpose
green -- uEFI BIOS POST bit 2
and bit 6
red+green -- --
LED1 red When lit up during boot-up, it indi-
cates a uEFI BIOS boot failure. --
General Purpose or Port 80
Default: General Purpose
green -- uEFI BIOS POST bit 1
and bit 5
red+green -- --
LED0 red When lit up during boot-up, it indi-
cates a uEFI BIOS boot failure. --
General Purpose or Port 80
Default: General Purpose
green -- uEFI BIOS POST bit 0
and bit 4
red+green -- --
Note ...
The bit allocation for Port 80 is the same as for the POST code.