376 Agilent InfiniiVision 3000 X-Series Oscilloscopes User's Guide
24 I2C/SPI Triggering and Serial Decode
2 Press the Word Size softkey; then, turn the Entry knob to select the
number of bits in a word.
3 Press the Bit Order softkey; then turn the Entry knob to select the bit
order, most significant bit first (MSB) or least significant bit first (LSB),
used when displaying data in the serial decode waveform and in the
Lister.
4 If the decode line does not appear on the display, press the [Serial] key
to turn it on.
5 If the oscilloscope is stopped, press the [Run/Stop] key to acquire and
decode data.
You can use the horizontal Zoom window for easier navigation of the
acquired data.
See Also • "Interpreting SPI Decode" on page 377
• "Interpreting SPI Lister Data" on page 378
• "Searching for SPI Data in the Lister" on page 378
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.
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