BCH encoding device applied to embedded system, and control method thereof

Abstract

The invention particularly relates to a BCH encoding device applied to an embedded system, and a control method of the BCH encoding device. The BCH encoding device applied to the embedded system is composed of an AVALON slave port, an internal register bank, a state machine, a dual-port RAM and a BCH encoding circuit module, can be matched with a 32-bit bus of the current popular embedded system, and completes BCH (4200,4096,8) encoding in a 32-bit parallel manner without CPU intervention. According to the BCH encoding device applied to the embedded system and the control method of the BCH encoding device, data or instructions just need to be written in simply, the subsequent operation is carried out by the state machine without the participation of the CPU, the computation rate of the BCH is effectively increased, 32-bit line width is adopted, BCH (4200,4096,8) codons are adopted, the width of the bus is effectively matched, the interface design conforms to the bus specification, the BCH encoding device can be implanted into the embedded system conveniently, the development cycle is greatly shortened, and the BCH encoding device and the control method thereof have broad application prospects.

Description

technical field [0001] The invention relates to the technical field of BCH encoding, in particular to a BCH encoding device applied to an embedded system and a control method thereof. Background technique [0002] The BCH code is a cyclic code, which is constructed by specifying continuous roots on a finite field, and has multi-bit forward error correction capability. The BCH (4200,4096,8) code is an error correction code with an error correction capability of 8, an information bit of 4096 bits, and a code length of 4200 bits. It is widely used in modern embedded and communication fields. The current BCH encoding circuit is generally a dedicated circuit, without considering the portability and data matching of the bus. When using it, other peripheral circuit design or modification is required, which prolongs the development cycle of the system, and in real time The coding speed of the field with high speed requirement is insufficient. [0003] The NiosII embedded system is...

AI Technical Summary

Problems solved by technology

The current BCH encoding circuit is generally a dedicated circuit, without considering the portability and data matching of the bus. When using it, other peripheral circuit design or modification is required, which prolongs the development cycle of the system, and in real time The speed of encoding in areas with high speed requirements is insufficient

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