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A Virtual Verification Method Based on Codec Chip

A verification method and encoding and decoding technology, applied in the field of integrated circuit design, can solve problems such as large scale, numerous chip functional modules, and complex application scenarios, so as to achieve fast and accurate verification and reduce the risk of failure

Active Publication Date: 2018-08-21
XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chip has many functional modules, large scale, and complex application scenarios, which bring great challenges to the verification work.

Method used

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  • A Virtual Verification Method Based on Codec Chip
  • A Virtual Verification Method Based on Codec Chip

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0027] The present invention is aimed at the system function virtual verification method of codec chip (realize the high-definition video codec that meets MainProfile defined in H.264 / AVC standard, MPEG-2 / 4AAC audio codec), comprise the following steps:

[0028] Step 1: Summarize models and use cases for development, verification and testing

[0029] Use simulation verification tools (NCsim, QuestaSim) to build a system verification platform, develop chip function models (including GPIO model, UART model, VIC model, ETH model, ASRAM model, SSRAM model, IDE model, I2C model, DDR2 model, PCI model, VOC model, I2S model and STREAM model);

[0030] Develop a variety of typical compressed video sources conforming to the H.264 / AVC standard MainProfile, and compressing audio sources conforming to MPEG-2 / 4 as verification incentives, which cover all compressions of the H.264 / AVC standard MainProfile and MPEG-2 / 4 algorithm;

[0031] Develop the C language model of the video codec fun...

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Abstract

The invention relates to an encoding / decoding chip based virtual verification method. The method comprises the steps of at first, completing the development of a functional model of each module meeting protocol requirements, functional requirements and performance requirements by adopting a hardware logic function development means; and then, completing the verification of each module meeting the protocol requirements, the functional requirements and the performance requirements by adopting a grading verification means. The method can timely and accurately discover errors and defects in a chip design process, provide comprehensive, quick and accurate verification for design, modification and optimization of an encoding / decoding chip, ensure the correctness of chip function and performance, lower the risk of chip tape-out failure, and solve the problem of low coverage rate of audio and video decoding chip verification.

Description

technical field [0001] The invention belongs to integrated circuit design technology and relates to a virtual verification method based on codec chips. Background technique [0002] Audio and video information has the characteristics of intuitiveness and high efficiency. It has been widely used in network media, digital TV, satellite transmission and other fields. However, the data volume of audio and video information is huge. Before transmission, specific algorithms are often used to compress the data, and then the data is compressed at the receiving end. to decode. [0003] The H.264 / AVC decoding chip involved in the present invention is an integrated embedded processor, PCI host interface, H.264 / AVC video decoding core, MPEG-2 / 4AAC audio decoding core, DDR2 memory interface, DMA controller , Ethernet terminal, IDE recording interface and other resources, it is an intelligent, generalized and miniaturized video and audio processing chip that meets the real-time high-defi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
CPCG06F30/20G06F30/398
Inventor 马超许宏杰安博锋陈威宇卢俊王婷
Owner XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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