A Digital High Capture Rate Method

Abstract

The invention discloses a digital high-capture-rate method, which comprises the steps of: converting a serial data stream of an acquired digital signal into a parallel data stream; and parallelly storing values of X sampling points in each clock period of the parallel data stream in X independent reading and writing storage units corresponding to a three-dimensional waveform storage space. The digital high-capture-rate method effectively improves the waveform capture rate, and solves the problem that jitter, asynchronous faults and transient events become difficult to find out due to the reduction of the timing margin of the signal.

Description

technical field [0001] The invention relates to the field of digital technology, in particular to a digital high capture rate method. Background technique [0002] A digital three-dimensional oscilloscope is a digital storage oscilloscope that can not only capture and display the time-amplitude (event) information of a signal, but also display the event occurrence probability with different brightness or color levels. It has all the advantages of a digital storage oscilloscope, and at the same time it can also produce a chemical fluorescence effect in digital form that is similar to the gradual change in brightness of an analog oscilloscope. [0003] As system clock frequencies continue to increase, signal timing margins are drastically reduced, and jitter, asynchronous glitches, and transient problems become prominent and hard to find. If the waveform capture rate is insufficient, most transient events cannot be found in the time domain test, let alone signal jitter analys...

AI Technical Summary

Problems solved by technology

[0003] As system clock frequencies continue to increase, signal timing margins are drastically reduced, and jitter, asynchronous glitches, and transient problems become prominent and hard to find

If the waveform capture rate is insufficient, most transient events cannot be found in the time domain test, let alone signal jitter analysis and eye diagram analysis

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