Analyse CAN/LIN Signals At Protocol Layer

March 16, 2012
The K3 triggering and decoding option developed by Rohde & Schwarz for its RTM series allows CAN and LIN signals to be viewed at the protocol layer.

Munich, Germany: The K3 triggering and decoding option developed by Rohde & Schwarz for its RTM series allows CAN and LIN signals to be viewed at the protocol layer. Without the option, it’s possible to verify CAN and LIN signals by measuring amplitude and rise time, but the RTM-K3 simplifies the analysis of transmitted-message content.

The RTM-K3 option triggers on CAN/LIN specific protocol data and decodes the recorded waveforms into easy-to-read protocol content. As with the I[SUPERIOR 2]C/SPI and UART/RS-232 options, the hardware-based decoding is done in real time. The resulting high acquisition rate allows the oscilloscope to find faults quickly. Protocol-specific triggers can trigger on protocol errors or specific content, perhaps to filter specific individual messages out of the transmitted data.

Simple test dialogues with explanatory graphics help facilitate configuration. Protocol details in the measured waveform are colour-coded, and protocol data is compiled in tables. A zoom function allows the user to view relevant data in detail; increasing the zoom will display more information about the relevant part of the message. To further improve readability of the decoded data, a user-defined name for the component can be displayed instead of the hexadecimal address.

Rohde & Schwarz
www.rohde-schwarz.com

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