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HART調(diào)制解調(diào)芯片高速通信接口設(shè)計(jì)
2022年電子技術(shù)應(yīng)用第4期
張立國(guó)1,李福昆1,,嚴(yán) 偉2,,劉 強(qiáng)1,,王雪迪1
1.燕山大學(xué) 電氣工程學(xué)院,,河北 秦皇島066000,;2.北京大學(xué) 軟件與微電子學(xué)院,,北京100871
摘要: 為適應(yīng)當(dāng)下工廠設(shè)備間,,針對(duì)設(shè)備量以及傳輸數(shù)據(jù)量龐大問(wèn)題,設(shè)計(jì)了一種新型的HART調(diào)制解調(diào)芯接口,,通過(guò)AXI4總線接口代替?zhèn)鹘y(tǒng)的UART接口,,加速HART調(diào)制解調(diào)芯片與CPU之間的通信速度。相比于URAT傳統(tǒng)接口按位傳輸,,AXI4總線接口可并行傳輸32位8個(gè)字節(jié),,數(shù)據(jù)傳輸速度可達(dá)到納秒級(jí)別。通過(guò)AXI4總線模塊與CPU的互聯(lián),,實(shí)現(xiàn)結(jié)構(gòu)功能配置與數(shù)據(jù)的交互,。HART調(diào)制解調(diào)芯片高速通信接口設(shè)計(jì)基于FPGA平臺(tái)進(jìn)行原型驗(yàn)證,結(jié)果表明,,該架構(gòu)能有效識(shí)別HART通信協(xié)議,,CPU與HART芯片數(shù)據(jù)交互達(dá)到納秒級(jí)別,調(diào)制解調(diào)正確率高達(dá)100%,,滿足HART通信協(xié)議要求,。
中圖分類號(hào): TN913.3
文獻(xiàn)標(biāo)識(shí)碼: A
DOI:10.16157/j.issn.0258-7998.211551
中文引用格式: 張立國(guó),李福昆,,嚴(yán)偉,,等. HART調(diào)制解調(diào)芯片高速通信接口設(shè)計(jì)[J].電子技術(shù)應(yīng)用,2022,,48(4):6-11.
英文引用格式: Zhang Liguo,,Li Fukun,Yan Wei,,et al. Interface design of HART modulation and demodulation chip[J]. Application of Electronic Technique,,2022,48(4):6-11.
Interface design of HART modulation and demodulation chip
Zhang Liguo1,,Li Fukun1,,Yan Wei2,Liu Qiang1,,Wang Xuedi2
1.School of Electrical Engineering,,Yanshan University,Qinhuangdao 066000,,China,; 2.School of Software and Microelectronics,,Peking University,Beijing 100871,,China
Abstract: In order to adapt to the current factory equipment, aiming at the huge amount of equipment and data transmission, this paper designs a new HART modulation and demodulation core interface, which uses AXI4 bus interface to replace the traditional UART interface to accelerate the communication speed between HART modulation and demodulation chip and CPU. Compared to the traditional URAT interface, the AXI4 bus interface can transmit 32 bits of 8 bytes in parallel, and the data transfer speed can reach the NS level. Through the interconnection of AXI4 bus module and CPU, the structure function configuration and data interaction are realized. The high-speed communication interface design of HART modulation and demodulation chip was verified based on FPGA platform. The results show that the architecture can effectively identify HART communication protocol, the data interaction between CPU and HART chip reaches NS level, and the correct rate of modulation and demodulation reaches 100%, which meets the requirements of HART communication protocol.
Key words : communication chip architecture,;chip interconnection;HART communication protocol,;communication interface

0 引言

    芯片產(chǎn)業(yè)是制造業(yè)的上游,被稱為“工業(yè)糧食”,,是制造業(yè)必不可少的核心技術(shù)[1],。我國(guó)目前正大力進(jìn)行制造轉(zhuǎn)型,促進(jìn)高端制造業(yè)的發(fā)展,,在這個(gè)過(guò)程中芯片產(chǎn)業(yè)成為極其重要的環(huán)節(jié),。隨著物聯(lián)網(wǎng)互聯(lián)網(wǎng)的發(fā)展,通信技術(shù)也迎來(lái)了科技變革,,通信技術(shù)以移動(dòng)接入,、實(shí)時(shí)通信、寬帶傳輸,、泛在計(jì)算,、傳感互聯(lián)等技術(shù)表現(xiàn)形式成為大力發(fā)展的一個(gè)技術(shù)領(lǐng)域[2]

    在現(xiàn)代化工廠中,,HART(Highway Addressable Remote Transducer,,可尋址遠(yuǎn)程傳感器高速通道的開(kāi)放通信協(xié)議)轉(zhuǎn)置提供具有相對(duì)低的帶寬,適度響應(yīng)時(shí)間的通信[3],,經(jīng)過(guò)10多年的發(fā)展,,HART技術(shù)在國(guó)內(nèi)外已經(jīng)十分成熟,并已成為全球智能儀表的工業(yè)標(biāo)準(zhǔn)[3],。但在工業(yè)以太網(wǎng)與工業(yè)物聯(lián)網(wǎng)的大背景下,,傳統(tǒng)的HART儀器儀表與HART傳統(tǒng)芯片面臨著變革與挑戰(zhàn),目前HART協(xié)議芯片存在設(shè)計(jì)種類單一,、結(jié)構(gòu)簡(jiǎn)單,、所支持的設(shè)備和CPU控制設(shè)備類型有所局限、傳輸速率低下等情況,,主要面臨著以下挑戰(zhàn):

    (1)傳統(tǒng)HART芯片單一對(duì)應(yīng)HART儀器儀表與單一CPU控制端,,在大型廠間內(nèi)布線數(shù)量大,成本高[4-5],。

    (2)傳統(tǒng)的HART芯片無(wú)時(shí)間同步機(jī)制,,數(shù)據(jù)延遲不可控。

    (3)傳統(tǒng)HART芯片一個(gè)CPU對(duì)應(yīng)一個(gè)HART芯片,,只對(duì)所控制的設(shè)備進(jìn)行數(shù)據(jù)讀寫(xiě)單一過(guò)程,,智能儀表運(yùn)行時(shí)與控制系統(tǒng)的互動(dòng)有待提高,,智能儀表間缺乏互操作[6-7]

    針對(duì)上述問(wèn)題,,本文提供一種新型的可互聯(lián)HART通信協(xié)議芯片的架構(gòu),。




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作者信息:

張立國(guó)1,,李福昆1,,嚴(yán)  偉2,劉  強(qiáng)1,,王雪迪1

(1.燕山大學(xué) 電氣工程學(xué)院,,河北 秦皇島066000;2.北京大學(xué) 軟件與微電子學(xué)院,,北京100871)




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