Enhancing Automotive Application Engineering Efficiency Through New Features

Keysight Korea (CEO Deok-Kwon Yoon) has released CXPI (clock extension peripheral interface) decoding and triggering options for the InfiniVision 3000T and 4000 X-series oscilloscopes.

The two series are the only oscilloscopes to date that provide decoding and triggering for the CXPI bus. This new feature improves the efficiency of engineers debugging the physical layer of the CXPI serial bus, which is primarily used in automotive applications.

CXPI is a next-generation, high-performance serial bus protocol for automotive body control applications. Currently, LIN (local interconnect network) is used as the primary bus for body control, but it is difficult to achieve sufficient performance and reliability in HMI (human machine interface) applications that require responsiveness.
For this reason, the CXPI bus is eventually expected to replace a significant number of today's LIN bus applications. The CXPI protocol provides features of the CAN (controller area network) protocol, such as error detection extension and recovery, URAT-based data link enforcement, and non-destructive arbitration.



To use an oscilloscope to debug and test the signal integrity (physical layer) of CXPI signals, it is important to guarantee error-free data transmission. The new CXPI triggering and decode features added to Keysight's InfiniVision 3000T and 4000 X-Series oscilloscopes provide hardware-based decoding for industry-leading decode update speeds.

Faster waveform and decode update rates improve the probability of capturing random and intermittent errors. With these new options, InfiniVision oscilloscopes can decode and trigger specific errors (optionally filtered by frame ID), such as CRC errors, parity bit errors, data length errors, inter-byte space errors, sampling errors, and framing errors. Detecting and eliminating bus errors during the design phase is essential for automotive design stability.
New Keysight CXPI triggers and decode options will be available for purchase starting in July.