48
MON08 Multilink User Manual
P&E
Microcomputer
Systems, Inc.
MON08 MULTILINK
This dialog can also be used by the user to manually enter the proper security
bytes via the USER setting, or to load the security bytes from the same .S19
file which was programmed. The bytes are loaded from an .S19 file by clicking
the “Load from S19” button.
IGNORE security failure and enter monitor mode
This checkbox can be used to cause the software to ignore a failure to
properly pass the 68HC08 security check. If the checkbox is set, the
software will attempt to establish monitor mode communications
regardless of the security status. As long as the Baud and Port are correct,
and the device has been properly powered, this will allow monitor mode
entry. Note that by ignoring the security check failure, you may use
monitor mode, but the ROM/Flash will not be accessible.
The checkbox can be set to bechecked on startup via the
FORCEBYPASS
command-line parameter, which will cause the software to ignore security
check failure. This checkbox can be overridden to be
un
checked on startup
via the
FORCEPASS
command-line parameter, which will cause the
software to pop-up the connection dialog when the security check has
failed. Note that if a connection is not established for a reason other than
security failure, the connection dialog will always appear.
4.3.3
STATUS
The status area consists of one status string following the “Status:” label, and
seven items which list the state of the last attempt to connect to a target and
pass security. The description for these items is as follows:
0 – ICS Hardware loopback detected:
Every ICS or board which supports MON08 has a serial loopback in
hardware which, by connecting the transmit and receive lines,
automatically echoes characters from the PC. A valid character transmitted
from the PC should be echoed once by the loopback circuitry on the board
and once by the monitor of the target processor itself. This status indicates
whether or not the first echoed character from the hardware loopback was
received when one of the security bytes was transmitted. If the status is
‘N’, which indicates that the character was not received, it is most likely
due to one of the following reasons:
1. Wrong Com Port specified.
2. The baud rate specified was incorrect (probably too low).
3. The ICS/Target is not connected.
4. No Power to the ICS.
If this status bit responded with an ‘N’, you must correct this before