Agilent Technologies DSO-X 4022A, Руководство пользователя

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CAN/LIN Triggering and Serial Decode
23
Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide 397
10
Press the Back/Up key to return to the LIN Signals Menu.
11
Press the
Sample Point
softkey; then, turn the Entry knob to select the
sample point at which the oscilloscope will sample the bit value.
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 396.
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]
.
Back
60%
70%
80%
Sample Point
One Bit
Sync
Break
Identifier
Break
Sync Break Exit
Sync
Field Checksum
Field
Data
Fields