Making A Simple Timing Measurement - HP 64700 Series User Manual

M aking a Simple
1
Timing
Measurement
Caution
A simple timing analyzer measurement can be made using the
following sequence.
1. Default the analyzer to an initialized condition.
display format_specification
default all_specifications
2. Set the threshold for the logic family which you desire to
analyze.
threshold xbits ecl
3. Connect the probe grabbers to points which have signals
you desire to analyze and define label names.
define My_label xbits_bit 0 <RETURN>
Remember to turn off the power to the target system before
connecting the probe grabbers.
4. Determine the trigger point upon which you are desiring
to trigger. To trigger on My_label being logically true,
enter the commands:
display trace_specification
trigger on pattern My_label = 1 <RETURN>
5. Match the sampling rate of the analyzer to about 10 times
the rate of your system clock. Higher rates for more
resolution and lower rates for a longer trace period.
sample period_is 20 nsec
6. Display the desired information on the timing diagram.
display timing_diagram
present My_label then X_upper
7. Execute the analyzer measurement.
execute
<RETURN>
<RETURN>
<RETURN>
<RETURN>
<RETURN>
<RETURN>
<RETURN>
<RETURN>
Timing: Getting Started 7-3