D R A F T — F O R I N
T E R N A L U S E O N L Y
27
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User Guide
CP3004-SA
How to Read the 8-Bit POST Code
Due to the fact that only 4 LEDs are available and 8 bits must be displayed, the POST code output is
multiplexed on the General Purpose LEDs.
The following is an example of the General Purpose LEDs’ operation if the POST configuration is en-
abled (see also Table 8).
Note:
Under normal operating conditions, the General Purpose LEDs should not remain lit during
boot-up. They are intended to be used only for debugging purposes. In the event that a
General Purpose LED lights up during boot-up and the CP3004-SA does not boot, please
contact Kontron for further assistance.
2.7.2 USB Interfaces
The CP3004-SA provides five USB ports:
»
Two USB 2.0 ports on the front I/O
»
Two USB 2.0 ports on the CompactPCI rear I/O interface
»
One USB 3.0 port on the high-speed I/O extension connector, J14, for the CP3004-HDD ex-
tension module, or one USB 2.0 port on the same connector for the Smart Extension Module
Note:
Boards with a USB 3.0 flash drive installed on the front panel USB 3.0 port have been
found to slightly exceed the electromagnetic interference limits. If permanent USB 3.0
type external storage is required to be connected to the USB 3.0 port, it is recommended
to use an external hard disk drive.
On the front panel, the CP3004-SA has two standard, type A, USB 2.0 connectors, J5 and J6.
2.7.3 VGA Interface
The CP3004-SA provides one standard VGA interface for connection to a monitor. The VGA interface is
implemented as a standard HD15 VGA connector, J4, on the front panel.
2.7.4 Serial Ports
The CP3004-SA provides two serial ports:
»
COMA available either on the CompactPCI rear I/O connector (3.3V LVTTL) or on the CP3004-
HDD extension module
»
COMB on the CompactPCI rear I/O connector (3.3V LVTTL)
Table 7: POST Code
Sequence
STATE
GENERAL PURPOSE LEDs
0
All LEDs are OFF; start of POST sequence
1
High nibble
2
Low nibble; state 2 is followed by state 0
Table 8: POST Code Example
LED3
LED2
LED1
LED0
RESULT
HIGH NIBBLE
off (0)
on (1)
off (0)
off (0)
0x4
LOW NIBBLE
off (0)
off (0)
off (0)
on (1)
0x1
POST CODE
0x41