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SHS800X&SHS1000X User Manual
99
WWW.SIGLENT.COM
SPI Serial Decode
After completing the setup of SPI signal and trigger, we will decode SPI signals.
Operation steps as follows.
1. Press Shift and Print → Decode. Select one of the options from the Decode1
and Decode2.
2. Press the Configure to set the bit stream format and bits (4-32 bits)
3. Press the Display and select On to display the result of decoding.
4. Press the Configure to set bit order and data length.
5. Press the List to enter the LIST function menu.
Press the Display and choose the same options as the first step.
Press the Scroll and turn the Universal Knob to view all frames.
Press the Lines and set the number of lines by Universal Knob. The range
of the lines is 1 to 7.
Users can export the result list of the package to the external USB storage
device in csv format (only when the USB flash disk is detected). Saving
the data (*.csv) is similar to the operation of setup files, see the section
"External save and recall" for details.
6. Press the Format to change the character encoding format of the decoding’s
result.
7. Press the Copy Setting to enter the COPY function menu to synchronize the
corresponding bus configuration and trigger configuration.
8. Press the Tips Info to turn on or off the decoding limit prompt. When the
decoding frame number reaches the maximum, it will pop up "Decoding to
maximum frame number limitation!"
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.
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