NIOS II 軟核處理器是Altera 公司一款靈活高效的嵌入式處理器，常應(yīng)用于控制和通
信領(lǐng)域。循環(huán)冗余校驗(yàn)（CRC）廣泛應(yīng)用于各種數(shù)據(jù)校驗(yàn)中。本文通過(guò)NIOS II 的自定義指令，成功地將循環(huán)冗余校驗(yàn)并行算法在FPGA 上實(shí)現(xiàn)。結(jié)果表明，加快了專項(xiàng)任務(wù)的執(zhí)行，提高了系統(tǒng)的效率。
關(guān)鍵詞：循環(huán)冗余校驗(yàn)；可編程片上系統(tǒng)；NIOS Ⅱ；嵌入式系統(tǒng)；自定義指令
Abstract: Nios II embedded processor is a general-purpose RISC processor core, and is widely used in the field of control and communications. The Cyclic Redundancy Check (CRC) is widely applied in data check. The paper described the implement scheme of CRC parallel
algorithmic in Nios II system. The algorithmic was successfully carried out in FPGA through the user-defined custom instructions and made the system efficiency improved.
Keyword: Cyclic Redundancy Check; SOPC; NIOSⅡ; embedded system; user-defined custom
instructions