Data backward-reading system

Abstract

The embodiment of the invention provides a data backward-reading system. The data backward-reading system comprises a data backward-reading device, a physical channel connecting device and an FPGA module, wherein the data backward-reading device generates a waveform backward-reading command, sends the waveform backward-reading command to the physical channel connecting device, obtains simulation waveform data from the physical channel connecting device and displays simulation waveforms corresponding to the simulation waveform data; the physical channel connecting device transmits the waveform backward-reading command and the simulation waveform data; the FPGA module comprises a to-be-test circuit module and a simulation-waveform-data capturing module, and is used for obtaining the waveform backward-reading command, capturing simulation waveform data generated by the to-be-test circuit module through the simulation waveform data capturing module according to the waveform backward-reading command and sending the simulation waveform data to the physical channel connecting device. The embodiment of the data backward-reading system is small in occupied logical resource, the occupied logical resource can not be enlarged along with enlargement of the IC design scale, backward reading of the simulation waveform data is quite convenient, and static timing analysis is easy.

Description

technical field [0001] The invention relates to the field of simulation technology, in particular to a data read-back system. Background technique [0002] With the increasing scale and complexity of IC (Integrated Circuit, integrated circuit) design, hardware-software co-simulation plays an increasingly important role in IC design verification because hardware-software co-simulation has the effect of accelerating simulation. In the software-hardware co-simulation platform, users can only simulate and debug IC designs by observing the simulation data waveforms. Therefore, the readback of simulation data waveforms is an extremely important part of IC design verification. [0003] At present, many universities, R&D institutions or IC design companies usually use logic analyzers and online debugging software provided by FPGA (Field-Programmable Gate Array, Field-Programmable Gate Array) manufacturers to read back the simulation data waveform. The logic analyzer is expensive, a...

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the purpose of the embodiments of the present invention is to provide a data readback system to solve the problem of serious waste of FPGA logic resources when the online debugging software reads back the simulated data waveform

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