Application Exa
mples
5. Push Trigger Me
nu.
6. Push Type to select Bu s . Enter trigger
parameters in the resulting screen menus.
Type
Bus
Source
Bus
B1 (I2C)
Trigger On
Address
Address
07F
Direction
Read
Mode
Auto
& Holdoff
7. Analyze the physical layer. For example,
you can use
the cursors for manual
measurements. (See page 113, Tak in g
Manual Measurements w ith Cursors.) You
canalsous
e the automated measurements.
(See page 105, Taking Automatic
Measurements.)
8. Push Search. Set Search to On. Enter a
search type, source, and other parameters
as relev
ant on the lower menu and
associated side menus. (See page 127,
Using Wave Inspector to Manage Long
Record L
ength Waveforms.)
9. Jump ah
ead to the next search point by
pushing the right arrow key. Push it again
and again until you see all the events. Jump
back wi
th the left arrow key. Do you have all
the packets that you expected to have? If
not, at least you have narrowed your search
down t
o the last packet sent.
10. A nalyze the decoded packets in the protocol
layer. Did you send the data bytes in the
correct order? Did you use the correct
address?
182 MSO4000B and DPO 4000B Series Oscilloscopes User Manual
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