Data compression display method and device based on FPGA system and storage medium

Abstract

The invention relates to a data compression display method and device based on an FPGA system, and a storage medium, and belongs to the field of data signal testing, and the method mainly comprises the following steps: in a system operation process, dividing data collected by a system into two paths: the first path is directly stored in DDR3 in the FPGA system, and the second path is directly stored in DDR3 in the FPGA system; the second path is compressed and stored in an RAM in the FPGA system; when the equivalent sampling rate is greater than or equal to the real-time sampling rate, readingthe acquired data points from the DDR3 for display according to the time of the screen pixel points; and when the equivalent sampling rate is smaller than the real-time sampling rate, compressing theacquired data into 2 bits according to every N data, storing the 2 bits into the RAM of the FPGA, and reading the acquired data points from the RAM for display after the data acquisition is finished.According to the data compression display method provided by the invention, missing of effective information can be prevented, and more waveform information can be displayed.

Description

technical field [0001] The disclosure belongs to the field of data signal testing, and in particular relates to a data compression display method, device and storage medium based on an FPGA system. Background technique [0002] The statements herein merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] The digital channel of the logic analyzer system has a vertical resolution of 1 bit, and the data is only 0 and 1, indicating the two states of low level and high level of the signal. When the real-time sampling rate is greater than the equivalent sampling rate, one screen pixel corresponds to multiple sampling points. When reading data from the storage area for screen display, the traditional method is to directly extract data points, and read the points corresponding to the time in the storage area according to the time of the screen point. The disadvantage of this method is that it will miss whether th...

AI Technical Summary

Problems solved by technology

When reading data from the storage area for screen display, the traditional method is to directly extract data points, and read the points corresponding to the time in the storage area according to the time of the screen point. The disadvantage of this method is that it will miss whether the points between the extraction points There is a transition edge

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