Freescale Semiconductor PE Micro Cyclone Pro User Manual page 82

CYCLONE PRO
In order to pass security, the software must send 8 security bytes to the
processor. The processor should echo each of these eight bytes twice. If all 8
bytes did not get the proper two-byte echo, this flag will be 'N'. Reasons for
this include:
3 – Device signaled monitor mode with a break:
Once the processor has properly received the 8 bytes from the PC software to
complete its security check, it should transmit a break character to the PC
signaling entry into monitor mode. This break should be sent regardless of
whether the security check was successfully passed. If a break was not
received from the processor, this flag will be 'N'. Reasons for this include:
4 – Device entered monitor mode:
Once the software has received, or failed to receive, a break from the
processor, it attempts to communicate with the monitor running on the
68HC08 processor. It tries to read the monitor version number by issuing a
monitor mode read. If the processor fails to respond properly to this
command, this flag will be 'N'.
5 – Reset was Power-On Reset:
If the device properly entered monitor mode (4), the software will read the
reset status register (RSR). This read does not affect the security sequence,
and occurs purely for diagnostic reasons. The reset status register indicates
the conditions under which the processor underwent the last reset. For the
software to pass the security check properly, it MUST first cause the
processor to undergo a Power-On Reset. The software reads the reset status
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1. The part did not start the monitor mode security check on reset. Sig-
nals to force monitor mode may be incorrect.
2. The baud rate specified was incorrect.
3. The processor was not reset properly. Check the "Target Hardware
Type" and if you are connecting to a class II board, check the
"MON08 cable communication connections type" in the "advanced
settings" dialog.
1. The baud rate specified was incorrect.
2. The processor was not reset properly. Check the "Target Hardware
Type". If you are connecting to a class II board, check the "MON08
cable communication connections type" in the "advanced settings"
dialog.
Cyclone PRO User Manual