Specifications

Reflashing the Flash Boot Device
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Page D-19
The EPC-30 boot block contains resident Xmodem code necessary
to establish communication with the SCP, serially download the
images to flash, and re-program the FBD.
Once the BIOS configures the communication port, the EPC-30 is
ready to synchronize with the source computer through Xmodem.
The EPC-30 receives no data from the source computer via the
serial port until synchronization is complete.
When synchronization is complete and the force update flash
recovery process is ready to begin, you must enter one of the
following commands to define how the process will occur:
FBD - Use this command to reflash the entire FBD
(except the boot block)
BB - Use this command to reflash the FBD boot block.
BIOS - Use this command to reflash the system and video
BIOS images.
EXIT - Use this command to ignore the force recovery
jumper and continue booting the system
BIOS.
HELP - Use this command to print help messages
explaining the FBD, BB, and BIOS commands.
RFA - Causes a reflash of the RFA.
RFA2 - Second 2MB of 4MB part (hidden switch)
The boot block will ensure that the RFA is configured for Linear
Mode and Byte Access.
The force update flash recovery process will not begin unless you
enter a command. When you enter the FBD, BB, or BIOS
commands, code in the boot block automatically initiates the
reflashing process. The SCP indicates the status of the recovery
process while it occurs, displaying the activities of erasing and
rewriting each image.
When the force update flash recovery process is complete and the
FBD is recovered, the program issues the statement “flash recovery
successful.” Power down the
EPC-30 and remove the serial interface cable. Remove the write
enable jumper if you reflashed the FBD boot block. When you
power up the system, it will boot with the recovered BIOS images.