Port - (Rs232.Com) - HP OMNIBOOK 5500 Service Manual

the 3 speeds under test. Default = 3.
Phytest Limits the test to just one speed which can
be set with /BAUD. It also uses all null
bytes rather than random data. Default
speed = 115200 baud
Valid Keystrokes Action
any key Any keystroke will abort The Full 2 Unit IR
test.
Failure Message Explanation
OK The test passed.
Must clean boot A clean boot is required prior to the test
(see step 1 above).
User abort The test was aborted.
Must undock The test cannot run when the OmniBook is
docked.
No reflector unit The computer under test did not receive
back any of the packets it transmitted.
Either the known good computer is not
positioned properly or is not running the test
(see step 2 above).
Fail The test failed.
RS-232 Port -
(RS232.COM)
This test requires a serial loopback connector to be connected to the serial
N
:
OTE
port.
The RS-232 Port test reads/writes to the COM1 serial port IER, baud divisor registers, and LCR.
It also checks for the loopback connector and sends a byte through the loopback connector at
each of the baud rates. The RS-232 Port test is hardcoded to test the UART at 3F8, therefore, it
can test only COM1.
DOS Parameter Explanation
none
Valid Keystrokes Action
n/a The RS-232 test ignores the keyboard.
Failure Message Error Code
User Aborted
Failed
No loopback
No loopback
Meaning
1 User aborted test.
2 No loopback connector
3 Sending bytes failed
4 Register read/write test failed
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