Test solution speeds development of IoT technologies

Posted By : Mick Elliott

A new MIPI D-PHY and C-PHY test solution to help accelerate the development of next-generation mobile and IoT devices has been released by Keysight Technologies. The test solution supports the MIPI Alliance’s D-PHY v2.0/v2.1 specification and C-PHY v1.0/v1.1 specification and conformance test suite.

It consists of the Keysight U7238E MIPI D-PHY compliance test software and the U7250A MIPI C-PHY compliance test software for Infiniium, as well as the Keysight DSAV164A digital oscilloscope for transmitter test and the Keysight M8085A MIPI Receiver Test Solution software package running on the M8195A or M8190A arbitrary waveform generator for receiver test.

The MIPI Alliance’s new MIPI D-PHY and C-PHY specifications address several rapidly changing markets.

For the virtual reality (VR) and augmented reality (AR) markets, each specification supports up to 9Gbps and 11.4Gbps (5Gsps) for the camera interface, enabling 8K 60Hz video recording.

For the autonomous car market, which requires multiple camera modules and sensors for detecting environmental conditions instead of human’s eyes, the new specification is important because it addresses the low latency and virtual channel support requirements without increasing cable harness weight.

Supporting these different markets requires higher data rate and more complex validation testing, which will become more challenging to the test and validation engineers versus previous specifications.

"Having adequate testing solutions for MIPI interface standards is an essential cornerstone for ecosystem enablement," said Joel Huloux, chairman of the MIPI Alliance board of directors. "Great to see that Keysight Technologies demonstrates their continuous support of MIPI standards with updated solutions that address current and future testing requirements."

For future testing needs, the Keysight solution can also provide an 8Gbps D-PHY signal in one M8195A AWG module, and can synchronise two or more M8195A modules to generate a 16Gbps D-PHY signal. For C-PHY, the test solution can generate up to 8Gsps C-PHY signal.

IoT environmental devices depend on highly efficient batteries that last a long time and require less charging.

The MIPI Alliance recently released a new interface to manage battery interface—the system power management interface (SPMI). Keysight’s N8845A application decodes SPMI data from its Infiniium oscilloscope.

This application helps reduce development time by providing proper triggering on specific packet and detailed decoding information.

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