Fluke 9000A-Z80QT Instruction Manual page 95

Pod Sync Calibration
A-7.
Calibration
the process by which the
is
Probe
and
are adjusted to correctly align (in time) the clock and signals
calibrate an
To
sampled.
sync mode, you are prompted to probe a signal on the UUT. The specified
reference edge on
Module
or probe
delay, labeled tcal (as shown in Figure
calibration
another. If
value. When calibration
default value.
PODSYNC
Eb
DATA LATCHED HERE
Figure A-1.
Once the reference edge
where in time the
I
A-l
contains an example of
Figure
data
the offset listed
for address sync
is
address best captured when sampled
is
positive offset would indicate
reference edge.)
of calibration
the
As a result
the sync mode in
use.
can be used. See the "setoffset" statement and the "getoffset" statement in the
9100-Series Reference Manual for exact syntax and details.
TL/
1
Data
I/O
Module
that
found
is
signal
relative to the internal
not
is
performed, a
is performed, the measured value for tcal replaces the
A}
9000A-2800T Pod Address Sync
an offset
found,
is
0
Probe
Module or
/
calibration
Table applies to real waveforms. The reference edge
in
A—2
of
the rising edge
1—1-5.
that
the address should be latched after the
process, the offset value
If other offsets are required, the
internal
delay lines in the
or Probe
for
to a Pod
adjusting the delay lines
by
PODSYNC
signal. The appropriate
A-l) may vary from one sync mode
default
setting
r—__
it
'
45 nS
A
7
~
—SPECIFIED
Timing
that
is applied to
latches data.
for address sync
data
The offset
ns before the rising edge of RD. (A
45
is set to
"setoffset"statement
TL/
1
Z8OQT
0
Module
/
I
to be
a particular Pod
the
in I/O
to
used for the real
is
a.
tcal
_.
EDGE
edge to determine
that
shows how
shows that
a_valid
that
specified for
A-3