关键词: 汉明码, 高可靠性, 存储系统, 检错纠错

Abstract: In order to enhance the reliability of on-chip storage, a high-reliability storage system based on Hamming code error correction is designed. This circuit is composed of an error detection and correction(ECC) register module and an ECC_CTRL module. The CPU can configure ECC registers through the advanced high-performance bus (AHB) to implement respective functions. The read and write data of SRAM and Flash is processed through the ECC_CTRL module for checksum generation and data error detection and correction. Simulation results demonstrate that this high-reliability storage system can detect single-bit and double-bit errors, and correct single-bit errors, thereby improving the reliability of data storage. Moreover, this circuit can lock erroneous data and addresses into registers, allowing users to avoid accessing erroneous addresses.

Key words: Hamming code, high-reliability, storage system, error detection and correction