SIGLENT SDS1202X-E - SPI Serial Decode

SDS1000X-E&SDS1000X-U User Manual
103
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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 51 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.