User's Guide

Review Copy 11-6-10
ThingMagic Micro Family Guide
44
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Protocol Fault Errors (Continued)
Message
Code
Cause
Solution
FAULT_GEN2
PROTOCOL_OTHER_ER
ROR
420h
This is an error returned by
Gen2 tags. It is a catch-all for
error not covered by other
codes.
Check the data that is being
passed in the command resulting
in this error. Try with a different
tag.
FAULT_GEN2_PROTOC
OL_MEMORY_OVERRUN
_BAD_PC
423h
This is an error returned by
Gen2 tags. The specific
memory location does not
exist or the PC value is not
supported by the tag.
Check the data that is being
written and where it is being
written to in the command
resulting in this error.
FAULT_GEN2
PROTOCOL_MEMORY_L
OCKED
424h
This is an error returned by
Gen2 tags. The specified
memory location is locked
and/or permalocked and is
either not writable or not
readable.
Check the data that is being
written and where it is being
written to in the command
resulting in this error. Check the
access password being sent.
FAULT_GEN2
PROTOCOL_V2_AUTHE
N_FAILED
425h
This is an error returned by
Gen2v2 tags. Most often it
means that an attempt was
made to authenticate a tag
with returned data using Key0,
which is not supported by
NXP UCODE DNA tags (only
key1 is supported).
Use key1 to have the tag return an
encrypted challenge with
encrypted data.
FAULT_GEN2_PROTOC
OL_V2_UNTRACE_FAILE
D
426h
This is an error returned by
Gen2v2 tags. For NXP
UCODE DNA tags, it most
often means that an attempt
was made to change
Untraceable settings with a
zero Access Password.
Check the access password being
sent. It must be non-zero to
change the untraceable setting,
but can be set to zero for
operations thereafter.
FAULT_GEN2
PROTOCOL_INSUFFICIE
NT_POWER
42Bh
This is an error returned by
Gen2 tags. The tag has
insufficient power to perform
the memory-write operation.
Try moving the tag closer to the
antenna. Try with a different tag.
FAULT_GEN2
PROTOCOL_NON_SPECI
FIC_ERROR
42Fh
This is an error returned by
Gen2 tags. The tag does not
support error specific codes.
Check the data that is being
written and where it is being
written to in the command
resulting in this error. Try with a
different tag.
FAULT_GEN2
PROTOCOL_UNKNOWN_
ERROR
430h
This is an error returned by
Micro when no more error
information is available about
why the operation failed.
Check the data that is being
written and where it is being
written to in the command
resulting in this error. Try with a
different tag.