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Calibration method and calibration device

A verification device and verification method technology, applied in the field of data processing, can solve problems such as many hardware resources

Active Publication Date: 2013-02-06
无锡惠诺威达物联技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the prior art, performing CRC on parallel data with a bit width of multiple bytes requires more hardware resources

Method used

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  • Calibration method and calibration device
  • Calibration method and calibration device

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Embodiment Construction

[0041] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0042] figure 1 It is a flowchart of a verification method provided by an embodiment of the present invention. see figure 1 , the method includes:

[0043] 101. Receive parallel data.

[0044] For example, the execution subject of 101 may be a receiver.

[0045] For example, the parallel data can be obtained as follows:

[0046] The serial-to-parallel converter processes the received serial data and converts it into the parallel data.

[0047] The number of bytes of the parallel data is X, and the bit width of the paralle...

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Abstract

The embodiment of the invention discloses a calibration method and a calibration device. The calibration method comprises the following steps: receiving parallel data, wherein the byte number of the parallel data is X, the bit width of the parallel data is Y bytes, and X and Y are both positive integers; using a cyclic redundancy check CRC circuit to calculate the parallel data, to obtain a first CRC value; comparing to determine whether the first CRC value and a second CRC value are the same, wherein the second CRC value is a CRC value obtained by performing CRC to the first data, the first data is one obtained by adding data with M bytes to the tail part of the second data, the second data is one obtained by adding a third CRC value to the tail part of a third data, the third CRC value is the CRC value of the third data, and M is equal to a remainder obtained by using Y to subtract X and then divide Y; and determining that the parallel data passes through the CRC if the first CRC value is equal to the second CRC value. The technical scheme only needs one CRC circuit. Compared with the prior art, the technical scheme requires less hardware sources.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a verification method and a verification device. Background technique [0002] CRC (Cyclic Redundancy Check, cyclic redundancy check) technology is widely used in the field of data communication. CRC can be implemented by software lookup table or hardware. Performing CRC on high-speed data is generally implemented by hardware. [0003] In the prior art, when CRC is performed on parallel data with a bit width of multiple bytes by hardware, multiple CRC circuits are required. For example, to perform CRC on parallel data with a bit width of 4 bytes, a CRC circuit corresponding to 1 byte, a CRC circuit corresponding to 2 bytes, a CRC circuit corresponding to 3 bytes, and a CRC circuit corresponding to 4 bytes are required. Corresponding CRC circuit. In the prior art, performing CRC on parallel data with a bit width of multiple bytes requires many hardware resources. Con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
Inventor 赵文江罗俊刘永峰雷浩鲁珣
Owner 无锡惠诺威达物联技术有限公司