GE 68K System - Manual (Page 48)

GE Energy Services
68K System Monitor
User's Guide
SWM0023 1.00 2 General
3-22 Full Release
DEBUG - Debug Mode
Platform o CPM o D20
D20 Base o D20 ME
D20 Base o D20/200
CCU Base o D20/200 ME
CCU Base þ D25
Description Use this command to put the D25 into Debug Mode.
This mode disables certain checks in the system so that it will ignore small system
violations during debugging sessions (such as allowing the writing of FLASH code
to RAM during a download).
In this mode, you can make making changes to the base address and size of the
SRAM, NVRAM and FLASH regions in the NVRAM configuration header.
Syntax Below is usage and syntax information for this command
Command Format DEBUG
Variables None
Parameters None
Example Type DEBUG and press ENTER .
Results: The output displays the current debug state. The user
receives the following prompt:
Do you wish to update the NVRAM header? (y/n)
Any reply other than ‘y’ aborts the rest of the
command. Otherwise, the command prompts you to
enter new values for the FLASH, SRAM, and
NVRAM base address and size. Entering a zero
indicates that the item is to remain unchanged.
Once the new data has been entered, you are
prompted:
Is this data accurate? (Y/N)
Any response other than ‘y’ will cause the monitor to
re-issue the prompts for the FLASH, SRAM, and
NVRAM base address and size.
Pressing CNTRL - C will abort the command.
If the user responds ‘y’, the command writes new
data to the NVRAM header and a new NVRAM
header CRC is calculated and stored.
Special
Considerations The debug command is a toggle, turning the debug mode ON if
it is OFF, and OFF if it is ON.
Enabling the Debug Mode degrades the performance of the
system and may cause certain CPU intensive commands to
activate the watchdog and reset the system.