Agilent Technologies InfiniiVision 3000 3024A MSO-X, Руководство пользователя

Страница: 345 / 424

CAN/LIN Triggering and Serial Decode
22
Agilent InfiniiVision 3000 X-Series Oscilloscopes User's Guide 345
12 Press the Standard softkey; then, turn the Entry knob to select the LIN
standard you are measuring (LIN 1.3 or LIN 2.0).
For LIN 1.2 signals, use the LIN 1.3 setting. The LIN 1.3 setting assumes
the signal follows the "Table of Valid ID Values" as shown in section A.2
of the LIN Specification dated December 12, 2002. If your signal does
not comply with the table, use the LIN 2.0 setting.
13
Press the
Sync Break
softkey and select the minimum number of clocks
that define a sync break in your LIN signal.
LIN Triggering
To set up the oscilloscope to capture a LIN signal, see "Setup for LIN
Signals" on page 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.
A LIN signal message frame is shown below:
1
Press
[Trigger]
.
2 In the Trigger Menu, press the Trigger softkey; then, turn the Entry knob
to select the serial slot (Serial 1 or Serial 2) on which the CAN signal
is being decoded.
60%
70%
80%
Sample Point
One Bit
Sync
Break
Identifier
Break
Sync Break Exit
Sync
Field Checksum
Field
Data
Fields