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Rapid CRC method and device

A verification method and fast technology, applied in the direction of digital transmission system, electrical components, error prevention, etc., can solve the problem that the efficiency cannot meet the system verification requirements, and achieve the effect of improving performance and improving production efficiency

Inactive Publication Date: 2017-01-11
天津国芯科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] The general CRC generation method can only generate a CRC check code of one bit of data per operation. In a communication system that requires a large amount of data transmission, this efficiency is far from meeting the system verification requirements.

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  • Rapid CRC method and device

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Embodiment Construction

[0025] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides a rapid CRC method and device. The check method comprises the steps of receiving data needing to be transmitted; generating CRC original check codes of the data needing to be transmitted through combination of CRC original check codes and the original data; carrying out a series of operations on the CRC original check codes; generating CRC checking codes employed in a transmission process; and comparing whether the received data is consistent with the check codes or not when the data is received, thereby judging whether the transmission of this time is successful or not. According to the method and the device, through adoption of a special algorithm, an exclusive or operation is carried out on the 8-bit data and the original initial CRC check codes each time according to a special rule, the 32-bit CRC check codes of the 8-bit data can be generated in a clock cycle, in this way, the generation efficiency of the CRC check codes is greatly improved, and the performance of a whole communication system is improved.

Description

technical field [0001] The invention belongs to the field of computer technology and communication technology, and in particular relates to a fast CRC checking method and device. Background technique [0002] In the process of data communication, due to the interference of various factors, no matter how perfect the design of the transmission system is, errors will always occur. This kind of error may be only a bit error (due to some kind of interference, a certain bit of data changes from 1 to 0, or from 0 to 1). However, just one bit error will cause one or more frames of data errors in the entire transmission data. Therefore, in order to improve the accuracy of the received data at the receiving end as much as possible, the receiving end will generally perform an error check on the data before using the received data, and the receiving end will actually receive the transmitted data only when the result of the check is correct. . There are many ways to check, the most co...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0061
Inventor 兰光洋肖佐楠郑茳
Owner 天津国芯科技有限公司
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