Teledyne LeCroy Serial Data Debug Solutions - Manual (Page 77)

Operator's Manual
919586 RevA 77
E RROR T RIGGER S ETUP D ETAIL
6b. Checksum Error Setup
When the LINbus trigger selection is Error, use the Checksum Error Setup fields as follows:

Error Frame ID - Provide a value in either Binary or Hexadecimal mode based on the selection made in
the previous Setup Format step.

Use the Checksum Error, Header Parity, and Sync Byte checkboxes to include or exclude the specific Error
Frame Trigger's trigger type.
Note: When the Checksum Error checkbox is selected, the LIN Spec. and # Data Bytes fields are
enabled.

LIN Spec. - Select a LINbus specification from the available choices.

# Data Bytes - Provide a value using the pop-up keypad.
Note: The value entered in this field is dynamically copied to the Data Pattern Setup entry for # Data
Bytes (ID + Data Trigger Type selection).
Using the FlexRaybus Option
Using the FlexRaybus Option Overview
Both FlexRaybus D and TD options contain powerful software algorithms to extract serial data information from
physical layer waveforms measured on your oscilloscope. The extracted information is overlaid (annotated) on
the actual physical layer waveforms, and color-coded to provide fast, intuitive understanding. This is especially
helpful for FlexRay, an emerging standard that many engineers are just starting to use.
The FlexRaybus TD option allows triggering on TSS (Start), Frame, Symbol or Errors. Conditionally set frame
triggers to select a range of Frame ID values on which to trigger, instead of just a single ID. Other powerful and
user-friendly features included in FlexRaybus trigger include:

Ability to trigger and decode FlexRay protocol version 2.1 at 10 Mb/s, 5 Mb/s or 2.5 Mb/s.

Ability to create powerful Frame triggers including Cycle Count and Frame Qualifiers.

Triggering on FSS, BSS, FES, Header CRC and Payload CRC errors as well as CID, CAS/MTS and Wakeup
Patter Symbols.
If you are unfamiliar with or are just learning about FlexRay, start by using the simplest trigger conditions (TSS,
or Frame ID). Next, experiment with an ID + Count Equal to a specific value. Finally, try a conditional ID + Cycle
Count trigger (ID Greater Than or In Range).
PLEASE NOTE THE FOLLOWING:

The FlexRaybus option also provides Physical Layer tools. See FlexRaybus Physical Layer Measurement
Parameters (on page 86) or Physical Layer Eye Diagram (on page 32) for more information.