Chestnut Ridge, N.Y. LeCroy Corp. has introduced an integrated FlexRay tool package that provides trigger and decode capabilities for the WaveRunner Xi series of oscilloscopes. Integrated within the oscilloscope, the FlexRay solution correlates physical layer signals with protocol layer data in one display, which the company says not only provides a unique look into data on the bus but also simplifies how automotive system designers work. The FlexRay trigger and decode expands LeCroy's existing suite of automotive and embedded system test tools, which include CAN, LIN, I2C, SPI, UART and RS-232.
Available on the WaveRunner Xi oscilloscopes, the internal FlexRay trigger can isolate static and dynamic slot IDs, cycle count number, frame qualifiers and symbols while the decoder shows a color-coded overlay directly on top of the physical layer waveform. Since the trigger is not a node on the FlexRay network, network re-programming is not required, said LeCroy. The user connects a differential probe to the bus and captures data.
The user interface is said to be easy to navigate, and the touch screen display provides access to all protocol triggers. Supported FlexRay protocol triggers include static and dynamic IDs, Frame Cycle Count, Frame Qualifiers (NFI, SyFI, StFI) and TSS Symbol. As with other serial data solutions, the FlexRay package features conditional triggering to set a trigger condition in range, out of range, less than or greater than.
LeCroy uses patented algorithms to deconstruct physical layer serial data signals and display decoded data with visually intuitive color-coded overlays. These overlays identify different parts of the data being captured and allow the user to identify the data of interest, which speeds up the debugging process for I2C, SPI, UART, RS-232, LIN and now FlexRay.
In addition, LeCroy offers the ability to decode four signals simultaneously. These four signals can all be FlexRay or any combination of the supported protocols. Along with displaying decoded data overlaid on the waveform, an interactive table is provided. Entries in this table can be selected and automatically zoomed into, eliminating the need to scroll through long records. To further simplify how data is located, a search function is built into the zoom trace to quickly locate a specific slot ID or cycle number. This advanced set of tools works on live data as well as math functions and waveforms stored in memory, said LeCroy.
In addition to the FlexRay trigger and decode capabilities for protocol analysis, the WaveRunner Xi series, with advanced math and measurement capabilities, can perform Pass/Fail mask testing, important timing measurements on the physical layer signals for FlexRay compliance.
Since FlexRay signals are not the only signals automotive system designers are working on, the WaveRunner Xi series offers a suite of tools for debugging and understanding embedded systems. The MS Series of mixed signal oscilloscope (MSO) options integrate with the WaveRunner Xi oscilloscopes to provide 18 or 36 digital inputs, which can be used for a variety of needs. Serial data trigger and decode for bus signals like I2C, SPI UART, RS-232 and LIN can be done with digital inputs, saving the oscilloscope channels for analog signals and differential bus signals like FlexRay and CAN.
LeCroy , 1-800-5LeCroy (1-800-553-2769), www.lecroy.com