Keysight InfiniiVision HD3 Series - Page 343

LIN Triggering and Protocol Decode 27
Keysight InfiniiVision HD3-Series Oscilloscopes User's Guide 343
LIN triggering can trigger on the rising edge at the Sync Break exit of the LIN
single-wire bus signal (that marks the beginning of the message frame), the
Frame ID, or the Frame ID and Data.
1 Select the trigger badge, or from the main menu, choose Trigger > Setup....
2 In the Trigger dialog box, from the Trigger Type drop-down list, select Protocol 1:
LIN or Protocol 2: LIN.
The Trigger dialog box controls unique to the PN: LIN trigger type are:
• Trigger on: — Selects the trigger condition:
• Sync (Sync Break) — The oscilloscope triggers on the rising edge at the Sync
Break exit of the LIN single-wire bus signal that marks the beginning the
message frame.
• ID (Frame ID) — The oscilloscope triggers when a frame with an ID equal to
the selected value is detected. Enter the value in the Frame ID field.
• ID & Data (Frame ID and Data) — The oscilloscope triggers when a frame with
an ID and data equal to the selected values is detected. When triggering on
a frame ID and data:
• Enter the frame ID value in the Frame ID field.
Note that you can enter a "don't care" value for the frame ID and trigger
on data values only.
• To set up the number of data bytes and enter their values (in hexadecimal
or binary), use the remaining fields.
• Parity Error — The oscilloscope triggers on parity errors.
• Checksum Error — The oscilloscope triggers on checksum errors.
When a LIN description file (*.ldf) is loaded (recalled) into the oscilloscope (see
"Loading and Displaying LIN Symbolic Data" on page 342), you can trigger on:
• Frame (Symbolic) — A symbolic frame value.
• Frame and Signal — A symbolic frame value and a signal value.
Symbolic frames, signals, and values are defined in the LIN description file.
A frame is the symbolic name for a LIN frame ID, a signal is the symbolic name
for a bit or set of bits within the LIN data, and a value can be a symbolic
representation of the signal bit values or it can be a decimal number with units.