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Time from trigger point to can message parameter, Characterizing canbus system performance, System performance characterization overview – Teledyne LeCroy CANbus TD and CANbus TDM - Operators Manual User Manual

Page 30: Canbus trigger, decode, and measure

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CANbus Trigger, Decode, and Measure

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CANbus-TD-TDM-OM-E RevB

Time from Trigger Point to CAN Message Parameter

Time from Trigger Point to CAN Message (Time@CAN)

This measurement parameter is used to measure the time from the trigger point to the defined
CAN message. The trigger could be a CAN message, a simple edge trigger, or something more
complicated, like a Pattern or a Dropout SMART Trigger. This makes it a very powerful tool to
understand the time delay from the occurrence of a certain set of conditions to the start of a
CAN message.

Time@CAN Measurement Parameter Setup Detail

To access the setup dialog, touch Setup for that parameter in the CAN Measure/Graph Setup
dialog. The Px Parameter dialog box is displayed. On the right side of this dialog box, there is a
setup dialog labeled with the measurement parameter name. Touch the tab with the parameter
name on it, and you will access the following dialog:

Characterizing CANbus System Performance

System Performance Characterization Overview

The oscilloscope contains a number of built-in tools, such as cursors, measurement parameters,
statistics, and optional graphical analysis tools that you can use to characterize your CANbus
system’s performance. These can be used on the CAN Trace and CAN Zoom just like they are
used on any channel. In addition, you can use normal Edge or SMART Triggers on an analog
channel input to trigger the oscilloscope when a certain analog signal occurs, and then measure
to a particular CAN message.