Analysing CXPI interfaces for automotive applications
The R&S RTx-K76 CXPI serial triggering and decoding option from Rohde & Schwarz allows users to analyse the clock extension peripheral interface (CXPI) communications bus with R&S RTE and R&S RTO oscilloscopes. Users can decode all protocol details and isolate anomalies by triggering on the corresponding details. This significantly accelerates design verification and implementation of CXPI interfaces.
CXPI was standardised in 2015 under SAE J3076 as a communications bus for diverse automotive applications. The bus uses pulse width modulation to transmit data over a single wire at 20 kbit/s. The characters used are based on UART.
When debugging CXPI interfaces during development, users can trigger on conditions such as start of frame, frame ID, data values and various error conditions. The instrument's powerful search and navigation functions make it easy to detect relevant events in the CXPI data stream.
The oscilloscope displays decoded telegrams as color-coded bus signals in a waveform diagram or as a table. As a result, developers can verify the quality of their products early during development.
The R&S RTE and R&S RTO let users simultaneously decode up to four serial buses from analog or logic signals. The oscilloscopes also deliver the fastest eye diagram mask tests using the standard mask test functionality.
The R&S RTE-K76 and R&S RTO-K76 CXPI serial triggering and decoding option is now available from Rohde & Schwarz.
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