Technical data

92 4000 X-Series Oscilloscopes Advanced Training Guide
4 Serial Bus Decoding & Triggering, Search & Navigation, and Segmented Acquisition Labs
The white triangles near the top of the waveform area mark the time
location of each “found” occurrence of our search operation as shown in
Figure 58. These frames are also marked in orange in the first/pointer
column of the lister table. Your scope should have found and marked
approximately 20 occurrences of this search operation based on a total
acquisition time of 200 ms. Note that the number of “found” events is
indicated near the bottom of the display. To automatically navigate to each
MOSI byte = 03
HEX
, press the and front panel navigation keys.
Let’s now use the scope’s Segmented Memory mode of acquisition to
capture 500 consecutive occurrences of SPI serial bus traffic when MOSI =
03
HEX
. But to complete the rest of this lab your scope must be licensed
with the Segmented Memory option.
44 Push the horizontal position/delay knob to re- position the trigger point
back to center-screen.
45 Set the scope’s timebase to 200.0 µs/div.
46 Press the [Run/Stop] front panel to begin repetitive acquisition again.
47 Press the [Acquire] front panel key.
Figure 58 Automatic Search & Navigation on SPI traffic.