Datasheet

Application Note
www.tektronix.com/oscilloscopes26
A powerful feature of the oscilloscope is the ability to define
and decode up to 16 serial buses simultaneously. Going back
to our earlier example with CAN bus; now imagine that the
window controls are operated by a LIN bus. When the driver
presses the Passenger Window Down control, a message
is initiated on a LIN bus in the driver door, passed through
a central CAN gateway and then sent on to another LIN
network in the passenger door. In this case, we can trigger on
the relevant message on one of the buses and capture and
decode all three buses simultaneously, making it exceptionally
easy to view traffic as it goes from one bus to another through
the system. This is shown in Figure 35 where we’ve triggered
on the first LIN message and captured all three buses.
The oscilloscope's LIN triggering capability includes the
following types:
Sync – trigger on the sync field Identifier – trigger on a
specific identifier
Data – trigger on 1-8 bytes of specific data values or
data ranges
Identifier & Data – trigger on a combination of both
identifier and data
Wakeup Frame – trigger on a wakeup frame
Sleep Frame – trigger on a sleep frame
Error – trigger on sync errors, ID parity errors, or
checksum errors
These trigger types allow you to isolate anything you’re looking
for on a LIN bus faster than ever before. And with the other
advanced serial features found in Tektronix oscilloscopes such
as event tables and search & mark, debugging LIN based
automotive designs has never been easier.
Figure 35. Simultaneous capture and decode of multiple automotive serial buses.