User`s guide

Serial Decode/Lister 10
InfiniiVision Oscilloscopes User’s Guide 323
4 If the decode line does not appear on the display, press the Decode softkey to turn it
on.
5 If the oscilloscope is stopped, press the [Run/Stop] key to acquire and decode data.
You can use the Zoom horizontal sweep mode for easier navigation of the acquired data.
Interpreting SPI Decode
• Angled waveforms show an active bus (inside a packet/frame).
• Mid-level blue lines show an idle bus.
• The number of clocks in a frame appears in light-blue above the frame, to the right.
• Decoded hexadecimal data values appear in white.
NOTE
If the setup does not produce a stable trigger, the SPI signal may be slow enough that the
oscilloscope is AutoTriggering. Press the [Mode/Coupling] key, then press the Mode
softkey to set the trigger mode from Auto to Normal.