2500_Users_Manual- - 第327页
Translation Formats LOF Format, Code 17 The Link Object Format (LOF) is an extension of the standard JEDEC data translation format and is used to transfer fuse and test vector data between the programmer and a host compu…
Translation
Formats
Absolute
Binary
Format,
Code
16
Absolute
Binary
format
is
a
literal
representation
of
the
data
to
be
transferred
and
no
translation
of
the
data
takes
place
during
the
transfer.
There
are
no
overhead
characters
added
to
the
data
(i.e.
no
address
record,
start
code,
end
code,
nulls,
or
checksum).
Every
byte
transferred
represents
the
user's
data.
This
format
can
be
used
to
download
unformatted
data
such
as
an
“.exe”
file
to
the
programmer.
Since
this
format
does
not
have
an
end
of
file
character,
download
transfers
will
terminate
after
no
more
data
are
received
and
an
I/O
timeout
occurs.
This
is
true
for
all
data
formats
which
don't
have
an
end
of
file
indicator.
For
this
reason
do
not
use
a
value
of
0
for
the
I/O
timeout
parameter
on
the
communication
parameters
screen,
since
this
will
disable
the
timeout
from
occurring.
A
value
between
1
and
99
(inclusive)
should
be
used
for
the
I/O
timeout
parameter
when
using
formats
which
require
the
timeout
to
occur.
D-16
ProMaster
2500
User
Manual
Translation
Formats
LOF
Format,
Code
17
The
Link
Object
Format
(LOF)
is
an
extension
of
the
standard
JEDEC
data
translation
format
and
is
used
to
transfer
fuse
and
test
vector
data
between
the
programmer
and
a
host
computer.
LOF
is
designed
to
support
the
Quicklogic
QL8xl2A
family
of
FPGAs.
An
LOF
data
file
is
stored
as
an
imploded
ZIP
file,
which
yields
data
compression
approaching
95%.
Note:
You
must
力
ave
PKZ7P
version
1.0
to
use
this
format.
Note:
The
specification
for
the
ZIP
data
compression
algorithm
allows
for
multiple
data
files
to
be
compressed
into
one
ZIP
file.
In
addition,
the
ZIP
data
compression
algorithm
a
〃ows
for
multiple
types
of
data
compression.
The
programmer's
implementation
of
UNZIP
supports
only
imploded
data
fles
and
will
extract
only
the
first
Rie
in
a
ZIP
file.
A
〃
remaining
files
in
the
ZIP
file
will
be
ignored,
as
will
files
遍
ot
stored
in
the
imploded
format.
The
LOF
format
contains
both
a
subset
and
a
superset
of
the
JEDEC
format
described
in
this
chapter.
This
section
describes
only
the
fields
that
are
extensions
of
the
JEDEC
standard
or
that
are
unique
to
the
LOF
format.
See
the
section
explaining
the
JEDEC
format
for
information
on
the
standard
JEDEC
fields.
See
page
D-35
for
information
on
obtaining
a
copy
of
the
JEDEC
Standard
3A.
LOF
Field
Syntax
The
LOF
character
set
consists
of
all
the
characters
that
are
permitted
with
the
JEDEC
format:
all
printable
ASCII
characters
and
four
control
characters.
The
four
allowable
control
characters
are
STX,
ETX,
CR
(Return),
and
LF
(line
feed).
Other
control
characters,
such
as
Esc
or
Break,
should
not
be
used.
Note:
This
is
Data
I/O
Corporation
's
implementation
of
Quicklogicfs
Link
Object
Format.
Contact
Quicklogic
for
a
more
in-depth
explanation
of
the
format
and
its
syntax.
ProMaster
2500
User
Manual
D-17
Translation
Formats
LOF
Fields
The
following
fields
are
included
in
Data
I/O's
implementation
of
the
LOF
format:
<STX>
*
Start
of
Data
(ASCII
Ctrl-B,
0x02
hex)
C
*
Fuse
Checksum
K
Fuse
data,
followed
by
control
words
and
pulse
link
cycles
N
*
Notes
Field
QB
Number
of
bits
per
word
QC
Number
of
control
words
at
the
end
of
each
K
field
QF
Number
of
Fuses
in
Device
(#
of
K
fields)
QM
Number
of
macro
cells
in
the
data
file
QP
*
Number
of
Device
Package
Pins
QS
Number
of
Hex-ASCII
words
in
each
K
field
and
each
control
word
QV
*
Maximum
Number
of
Test
Vectors
R
Signature
Analysis
(reserved
for
future
use)
S
SpDE
Checksum
T
Signature
Analysis
(reserved
for
future
use)
V
*
Test
Vectors
(reserved
for
future
use)
X
*
Default
Test
Conditions
(reserved
for
future
use)
<ETX>
*
End
of
Data
(ASCII
Ctrl-C,
0x03
hex)
These
fields
are
already
defined
as
part
of
the
JEDEC
standard
and
not
be
defined
in
this
section.
D-18
ProMaster
2500
User
Manual