F2250 User Manual
72A-1146 Rev. D 8/99 B-27
Loading New Firmware
To guard against loss of power during loading, make sure that the
computer and the simulator have reliable power supplies. If the power
supply is interrupted during the loading process, the firmware installation
could be incomplete or corrupted, and the process must be repeated. In
some cases, reloading after such an event requires opening the simulator
to reset an internal switch (See "Unsuccessful Load and Failed Reboot"
on page B-31).
Loading firmware consists of the following sub-procedures:
• Preparing to load
• Copying the Distribution Disk to the Hard Drive
• User Interaction During the Flash Load Process
• The Loading Process
Preparing to Load To prepare to load new firmware:
1. Ensure that all simulators are OFF.
2. Disconnect any IEEE-488 and SYNCH cables from the simulators so
that each simulator can operate in the stand-alone mode.
3. Connect one simulator to the computer, using a normal RS-232
connection, via the top 25-pin D connector of the CPUIII board.
4. Turn the simulator and the computer on. There is no need to turn the
computer off before connecting to the simulator or between loads for
multiple simulators.
5. Place the distribution disk in the A or B drive and select that drive as
the default drive by entering A: or B: at the DOS prompt.
If desired, the file complement can be checked by comparing a directory
(dir) list of files on the disk with the file list shown in the readme.txt file
on the disk. See the section "Documentation on Distribution Disk"
on page B-32 for further information about the distribution disk.
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