Serial Trigger and Decode 72
7.2.3 SPI Serial Decode
Once the setup of SPI signal and trigger is complete, the SPI signals can be decoded.
Operation steps as follows:
1. Touch Decode –>Decode. Select one of the options from the Decode1 and Decode2.
2. Touch Display and select On to display the result of decoding.
3. Touch List to enter the LIST function menu.
4. Touch Display and choose the same options as the rst step.
5. Touch Lines and set the number of lines by Universal Knob. The range of the lines is 1 to 7.
6. Touch Format to change the character encoding format of the decoder’s result.
7. Touch 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 7.16 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 7.17 SPI Decode List Display
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