SECTION 7
System Information
7-12 PEN*KEY
R
6200/6300 Hand-Held Computer Programmer’s Reference Guide
Audible Error Codes During POST
Table 7Ć3 lists the beep signals that can occur during the POST phase or during
runĆtime.
There are two kinds of beeps that can occur when rebooting the unit. This is the
result of a twoĆstage process that occurs during a reboot. The primary beep
codes have the same frequency and duration. The number of beeps generated is
what identifies the code. The secondary set of beep codes consists of at least one
long, one medium long, and one short beep.
Table 7Ć3
POST Error Codes
Duration / No. Beeps
LongMedium Short Meaning
0
0
1
Main battery is too low to start the system.
0
0
4
PC Card controller fails powerĆon diagnostics.
0
0
5
PC Card controller fails to respond.
0
0
6
PC/AT System Controller fails powerĆon diagnostics.
0
0
7
Master Mode boot was requested with no card present.
1
1
2
Unable to read clocks for peripherals.
1
1
4
ROM BIOS checksum failed.
1
3
1
RAM Refresh is not active.
1
3
3
First 64K of system RAM is not operating correctly.
3
4
3
LCD cannot be enabled.
4
2
3
Cannot enable A20 using port 64h (see Note) (standard keyboard port).
4
2
4
Cannot enable A20 using port 92h (see Note) (IBM fast A20 port).
4
2
5
Cannot enable A20 using port 0EEh (see Note) (Special fast A20 port).
4
4
2
Cannot copy BIOS into shadow RAM.
"
NOTE:
A20 refers to the special PC/AT hardware that enables or disables address line number 20
on the system memory address bus. The A20 line can be disabled to maintain compatibility
with 8088-based hardware platforms.
Open-Systems I/O and IRQ Maps
These IRQ and I/O maps are valid for 6200 and 6300 Computers.
Hardware Ports
The system supports the following hardware ports:
Table 7Ć4
Hardware Ports
COM
Port
Address IRQ
Description
COM1 3F8h
4
Regular wired serial port, accessed through dock.
COM2 2F8h
3
RSĆ485 serial port, (end cap on 6200 Computer, connector on 6300 ComĆ
puter) accessed via dock.
COM3 3E8h
14
IrDA port; accessed via 25Ćpin dock connector
COM4 (see Note) (see Note) PC Card modem (if installed, supported by PC Card drivers)
"
NOTE:
Addresses and IRQs allocated according to PC Card driver. The default Address = 2E8h
and the default IRQ = 5, using NORMOD.SYS and CardSoft.
7. System Information
