The Teledyne LeCroy WS3K-FLEXRAYBUS TD FlexRay™ trigger, decode and physical layer test package adds a unique set of tools to an oscilloscope, simplifying how users design and debug FlexRay systems and shorten testing time. The powerful internal FlexRay trigger quickly locates specific IDs or messages and the unique overlay shows decoded data directly on top of the physical layer signal. The eye diagram and timing measurements quickly locate physical layer problems.

Isolate specific FlexRay messages with the built-in oscilloscope trigger. Since the trigger is not a FlexRay node, connection to the FlexRay bus is simplified; and no re-programming of the vehicle network is required, simply connect a differential probe to the FlexRay signal. All the triggering is done in the oscilloscope and setup is completely integrated into the intuitive trigger menu.

Patented software algorithms de construct the waveform into protocol decode information, then overlay the decoded data on the waveform. Depending on the time base setting or the amount of zoom, the decode information is condensed or expanded to better assist in understanding events. Various sections of the protocol are color-coded to make it easy-to-understand. Communication Cycle Start and Error Frames are highlighted. The decode operation is fast — even with long acquisitions. The user can choose to decode into Hex or Binary formats.

Quickly locate physical layer problems using powerful eye diagram mask test, watch the eye build up over time and use the error indicator to find mask violations and isolate problems. Mask testing combined with the built in automated FlexRay timing measurements let the user know how the FlexRay physical layer is performing.

Triggering on the complex FlexRay protocol is made easy with an intuitive interface and a wide range of trigger settings for all aspects of the protocol. Set up a simple TSS (Start) symbol trigger with a single button press or trigger on any part of a FlexRay frame including ID, Cycle Count, Cycle Repetition Factor and Frame Qualifier. FlexRay defined Symbols and Errors can also be incorporated into the trigger making it as simple or advanced as necessary. Conditional triggering can be set to trigger on a range of Frame IDs or Cycles. Trigger on every aspect of the FlexRay Frame as well as Symbols and Errors including FSS, BSS, FES, CRC, CID, CAS/MTS and Wakeup by selecting the appropriate boxes.

Eye diagrams are an important part of testing many serial data standards and FlexRay is no different. Leveraging Teledyne LeCroy’s techniques developed with extremely fast serial data signals, the FlexRay eye diagram mask test overlays all the bits on FlexRay signal in an eye diagram with pass/fail mask testing. Tell the oscilloscope to stop on any mask violation and quickly locate the source of physical layer problems. By configuring the trigger for a specific Frame ID or range of IDs an eye diagram can be created to show only those Frames. Gain valuable insight into the FlexRay communications channel by viewing eye diagrams, physical layer measurements and decoded protocol data at one time.

Seeing the eye diagram gives the user good insight to the FlexRay system but measuring key timing parameters like Propagation Delay, Asymmetric Delay, Truncation and Jitter help the user understand how signals propagate along the channel. Use Teledyne LeCroy’s statistics and histicons to understand the range of measurements on the FlexRay channel. Quickly measure channel properties with measurement parameters defined by the FlexRay specification. Teledyne LeCroy’s statistical measurements with histograms, tracks and trends let the user see how the channel behaves over time.

Turn the oscilloscope into a protocol analyzer with the Table display of decoded information. Custom configure the Table to display only the desired information and export Table data to an Excel file. Touch a message in the table and automatically zoom for detail. Display the values in an easy-to-understand table. Touch a row to zoom, or export to Excel with one button push.

ID or Data values can be quickly located by searching for a specific value. In a long acquisition, pressing NEXT advances the single byte to the byte right or left of the current message. Search through long record of decoded data by entering the message or address the user is looking for and clicking the right or left search arrows.

Teledyne LeCroy offers the same powerful triggering and intuitive decoding capabilities for I2C, SPI, UART, RS-232, Audiobus (I2S, LJ, RJ, TDM), CAN, LIN, FlexRay,™ MIL-STD-1553) signals. For complete embedded system testing, the MS-250 and MS-500 adds 18 or 36 digital channels to the digital oscilloscope allowing the user to look at all analog, digital, and serial data waveforms simultaneously with complete analog/digital cross pattern triggering.