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Booting to Boot Block Flash with Fail Safe Boot ROM
The Fail Safe Boot ROM is a special build of ROM-DOS located inside a surface mounted Boot
Block Flash chip that is memory mapped to the SSD window. Boot Block Flash is a write protected flash
device that contains the BIOS and extra room where the Fail Safe Boot ROM is stored. The build is special
because it can understand the ROM DISK format on the flash chip. Additionally, Fail Safe Boot ROM is an
emergency interface accessible by an external computer. The ROM DISK in the Fail Safe Boot ROM con-
tains REMDISK and REMSERVE for remote access to the system’s disk drives. Due to the size of the flash
chip, Fail Safe Boot ROM contains an abreviated selection of the ROM-DOS utilities, however, the complete
ROM-DOS is contained on a floppy shipped with the board.
The purpose of the Fail Safe Boot ROM is to make the board bootable when the customer receives
the cpuModule. Fail Safe Boot ROM can be used as an indicator of the board’s functionality when booting
problems arise with another operating system. The ROM DISK that contains the Fail Safe Boot ROM acts
as an example of what can be programmed into the flash chip. Last, Fail Safe Boot ROM allows files to be
transferred on or off the storage devices in the system by use of REMSERV and REMDISK, two ROM-DOS
utilities.
If the user would need remote access to the system run REMSERV on the target system and REM-
DISK on the host system. The end result would be that the storage devices on the target system would appear
as additional drives on the host system. Information could then be transferred between hard disks by using a
standard NULL Modem cable over a serial port. REMSERV makes the connection appear as an additional
drive to the user. For details concerning this type of access, please refer to the ROM-DOS user’s guide
shipped with your board
The first time, your system will boot to the DOS prompt at the first available drive letter. If you do
not intend to use REMSERV or REMDISK or you intend to boot from another device, you will need to dis-
able Fail Safe Boot ROM. See the steps below for the method to disable it.
•
Reset the system by either shutting it off and turning it on or by using the reset button.
•
while the system is booting repeatedly press the DEL key to enter the BIOS setup.
•
Choose INTEGRATED PERIPHERALS using the arrow keys and enter.
•
Once in INTEGRATED PERIPHERALS set Fail Safe Boot in SSD Win: Disabled
NOTE!
Boards are shipped with fail safe boot rom enable.
When Fail Safe Boot ROM is enabled the system will boot to it exclu-
sively.
Содержание cpuModule CMC6686GX
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Страница 34: ...33 Connector Locations The figure and table below show all connectors and the SSD socket of the cpuModule...
Страница 35: ...34 CMC6686GX Connector Locations...
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Страница 104: ...103 Default Jumper Settings JP2 2 pin jumper Open no termination...
Страница 105: ...104 Solder Jumpers Solder jumpers are set at the factory and are rarely changed...
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Страница 117: ...116 Real Time Devices USA Inc P O Box 906 103 Innovation Blvd State College PA 16803 USA Our website www rtdusa com...