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SDS1000X-E User Manual
95
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SPI Serial Decode
After completing the setup of SPI signal and trigger, we will decode SPI signals. Operation
steps as follows.
1. Press
Decode
→
Decode
. Select one of the options from the
Decode1
and
Decode2.
2. Press the
Display
and select
On
to display the result of decoding.
3. Press the
List
to enter the
LIST
function menu.
4. Press the
Display
and choose the same options as the first step.
5. Press the
Lines
and set the number of lines by
Universal Knob
. The range of the lines
is 1 to 7.
6. Press the
Format
to change the character encoding format of the decoder’s result.
7. Press the
Scroll
and turn the
Universal Knob
to view all frames.
Interpreting SPI Decode
The frames of decoding result:
The data values are displayed in frames and are shown in white. Support 4~96 bit
data display.
MISO — the decoding result of “Master-In, Slave-Out” line.
MOSI —the decoding result of “Master-Out, Slave-In” line.
indicates there is not enough space on the display to show the complete content
of a frame, and some content is hidden.
Figure 49 SPI Decode Bus Display
The lists of decoding result:
Time — the horizontal displacement between current frame and trigger position.
MISO — the decoding result of “Master-In, Slave-Out” line.
MOSI —the decoding result of “Master-Out, Slave-In” line.
Figure 50 SPI Decode List Display
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