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BIOS Recovery Module
The ZT 5504 provides a 512 KB EPROM programmed with the BIOS for use if the ZT 5504's
BIOS becomes corrupted. The board is shipped with the device pre-installed in a 32-pin socket
(U38). If the EPROM is removed for any reason, ensure that it is correctly oriented when
reinstalled, as shown in the "BIOS Recovery Socket Location" figure above. The BIOS recovery
EPROM must be installed for the ZT 5504 to boot (if
Should the BIOS image in flash memory become corrupted the ZT 5504 may fail to boot. If this
happens, follow the steps below to force a boot from the BIOS Recovery Module. Note that the
BIOS contained in the recovery module is the default configuration whereas the BIOS in flash
memory may have been modified.
To force a boot from the BIOS Recovery Module:
1. Remove the board from the enclosure.
2. Close switch SW3-1.
3. Make sure flash write protection is disabled
4. Re-insert the board in the enclosure and power on the board. The system should boot.
5. See the
"Flash Utility
on-board flash with the BIOS.
6. After flashing the BIOS, turn off power, remove the board from the enclosure, and open
switch SW3-1.
7. If desired, enable flash write protection by closing switch SW3-2.
8. Re-insert the board in the enclosure.
Flash Utility Program
FLASH.EXE is a utility program that comes with the Intel Development Toolkit. Run
FLASH.EXE to modify the BIOS in the on-board flash memory. FLASH.EXE eliminates the
need for a PROM programmer and for removing boards and chips from the system.
Before attempting to program the flash, make sure that switch
open.
To reprogram the BIOS on the ZT 5504, use the following syntax at a DOS prompt:
FLASH /b BIOS.XXX
where BIOS.XXX is the BIOS image for the ZT 5504. See the Intel NetStructure Embedded
BIOS Manual for more information on the flash utility.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
(SW3-2
Program" topic below for detailed instructions on reprogramming the
SW3-1
is closed).
= open).
SW3-2
(Flash Write Protect) is
8. BIOS Recovery
52
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