290 Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes User's Guide
26 I2C Triggering and Serial Decode
I2C Serial Decode
To set up the oscilloscope to capture I2C signals, see "Setup for I2C Signals" on
page 285.
For I2C triggering setup see "I2C Triggering" on page 286.
To set up I2C serial decode:
1 Press the [Analyze] key.
2 Press Features; then, select Serial Bus.
3 Press Features again (or push the Entry knob) to enable the serial bus display.
4 Press the Mode softkey; then, select I2C.
5 Choose 7-bit or 8-bit address size. Use 8-bit address size to
include the R/W bit as part of the address value, or choose
7-bit address size to exclude the R/W bit from the address
value.
6 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 I2C Decode" on page 291
• "Interpreting I2C Lister Data" on page 292
If the setup does not produce a stable trigger, the I2C signals may be slow enough that the
oscilloscope is auto-triggering. Press the [Trigger] key, then press the Mode softkey to set the
trigger mode from Auto to Normal.
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