76 Keysight InfiniiVision DSOX1204A/G Oscilloscopes User's Guide
2 Quick Reference
Serial Bus Decode/Trigger
Depending on the oscilloscope model, the following hardware-accelerated serial
decode and trigger options are available:
To determine whether these licenses are installed on your oscilloscope, press
[Help] > About Oscilloscope.
To order serial decode licenses, go to www.keysight.com and search for the
product number (for example, DSOX1AUTO) or contact your local Keysight
Technologies representative (see www.keysight.com/find/contactus).
Triggering on
Serial Data
When triggering on a slow serial signal (for example, I2C, SPI, CAN, LIN, etc.) it
may be necessary to switch from the Auto trigger mode to the Normal trigger
mode to prevent the oscilloscope from Auto-triggering and stabilize the display.
You can select the trigger mode by pressing the [Trigger] key, then the Mode
softkey.
Also, the threshold voltage level must be set appropriately for each source
channel. The threshold level for each serial signal can be set in the Signals menu
(press [Analyze] > Features, select Serial Bus, then press the Signals softkey).
Serial decode and trigger type: With license:
CAN (Controller Area Network) AUTO
I2C (Inter-IC) EMBD
LIN (Local Interconnect Network) AUTO
SPI (Serial Peripheral Interface) EMBD
UART (Universal Asynchronous Receiver/Transmitter) protocols including
RS232 (Recommended Standard 232)
EMBD
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