2-4
After initialization, the terminal will display:
Hard Reset
DRAM Size: 1M
Copyright 1995-1996 Motorola, Inc. All Rights Reserved.
ColdFire MCF5206 EVS Debugger V1.1 (xxx 1996 xx:xx:xx:)
Enter ‘help’ for help.
dBUG>
If you did not get this response check the setup. Refer to Section 1.10. Note, the date
‘xxx 1996 xx:xx:xx’ may vary in different revisions.
Other means can be used to re-initialize the SBC5206 Computer Board firmware. These means are
discussed in the following paragraphs.
2.2.2.1 SOFT RESET Button. SOFT RESET is the red button located in the middle side of the board.
Depressing this button causes all processes to terminate, resets the MCF5206 processor and board logic’s
and restarts the dBUG firmware. Pressing the RESET button would be the appropriate action if all else
fails. The Reset button issues a soft reset and therefore, the memory controller remains functional. If
total reset is needed, the board should be powered down and up again. During the power-up, both the -
RSTI and -HIZ are asserted to cause Hard Reset.
2.2.2.2 ABORT Button. ABORT is the black button located next to RESET button in the middle side of
the board. The abort function causes an interrupt of the present processing (a level 7 interrupt on
MCF5206) and gives control to the dBUG firmware. This action differs from RESET in that no
processor register or memory contents are changed, the processor and peripherals are not reset, and dBUG
is not restarted. Also, in response to depressing the ABORT button, the contents of the MCF5206 core
internal registers are displayed.
The abort function is most appropriate when software is being debugged. The user can interrupt the
processor without destroying the present state of the system.
2.2.2.3 Software Reset Command. dBUG does have a command that causes the dBUG to restart as if a
hardware reset was invoked. The command is "RESET".
2.2.2.4 USER Program. The user can return control of the system to the firmware by recalling dBUG
via his/her program. Instructions can be inserted into the user program to call dBUG via the TRAP 15
handler.
2.2.3 System Operation
After system initialization, the terminal will display:
Hard Reset
DRAM Size: 1M
Copyright 1995-1996 Motorola, Inc. All Rights Reserved.
ColdFire MCF5206 EVS Debugger V1.1 (xxx 1996 xx:xx:xx:)
Enter ‘help’ for help.
dBUG>
and waits for a command.
