How to Accelerate High-Speed Digital Compliance Testing

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XR8 Oscilloscope
+ XR8 Oscilloscope
XR8 Oscilloscope
+ XR8 Oscilloscope

Accelerating Validation with Off-Instrument Parallel Processing

High-speed digital validation and protocol compliance tests for like LPDDR, USB, DisplayPort, and PCIe require executing hundreds of tests involving data acquisition and post-acquisition analysis. Each successive generation adds more tests and more processing requirements, where computation may take significantly longer than data acquisition. The solution to overcome this challenge is to offload the analysis to external compute resources that operate faster and in parallel. This technique is called measurement disaggregation.

Offloading data to external compute resources requires an oscilloscope supporting remote data processing. In this configuration, signal acquisition is done on the instrument, while signal analysis is done on external compute resources. A test sequencer is needed to distribute multiple processing tasks to parallel computing nodes. When properly implemented, this significantly reduces time to results, while preserving typical compliance pass / fail reporting capabilities.

Compliance Test Acceleration Solution

Accelerating compliance test processing requires an oscilloscope with multicore parallel processing and which can offload computational tasks to high-performance parallel computing resources. The Keysight XR8 oscilloscope captures waveforms and analyzes them in parallel on multiple cores. The compliance test acceleration solution offloads computational tasks from the oscilloscope for USB and DisplayPort compliance tests. The XR8 oscilloscope sends captured data to multiple virtual machines managed by a test sequencer. They can continuously capture waveforms while offboard server resources analyze and post-process the waveforms in parallel, speeding up test time.
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