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铁路通信信号工程技术 ›› 2022, Vol. 19 ›› Issue (9): 16-20,89.DOI: 10.3969/j.issn.1673-4440.2022.09.004

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高延迟信道下CAN总线控制器芯片的优化设计

靳 旭1，2   

  1. 1．北京全路通信信号研究设计院集团有限公司，北京 100070；
    2．北京市高速铁路运行控制系统工程技术研究中心，北京 100070
  • 收稿日期:2021-08-20 修回日期:2022-06-21 出版日期:2022-09-25 发布日期:2022-09-25
  • 作者简介:靳旭(1990—)，男，工程师，硕士，主要研究方向：集成电路设计，邮箱：jinxu@crscd.com.cn。
  • 基金资助:
    中国铁路通信信号股份有限公司重大科技专项（2020ZX01）

Optimization Design of CAN Bus Controller on High Latency Bus

Jin Xu1，2   

  1. 1. CRSC Research & Design Institute Group Co., Ltd., Beijing 100070, China；
    2. Beijing Engineering Technology Research Center of Operation Control Systems for High Speed Railways, Beijing 100070, China
  • Received:2021-08-20 Revised:2022-06-21 Online:2022-09-25 Published:2022-09-25

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摘要： CAN总线以其强实时性、高速、高可靠性、低成本等特性，在汽车、工业控制和工业自动化等领域都有大量的应用。基于已流片生产的自主设计初版CAN控制器芯片，针对高延迟信道下，高速通信易发生错误的问题，进行优化设计。旨在解决已发现的问题，并经过重新设计、仿真验证，再次进行流片生产。

关键词: CAN总线, 发送器, 延时, 流片

Abstract: CAN bus is widely used in the automotive, industrial control, industrial automation and other fields due to its strong real-time, fast transmission speed, high reliability, low cost and other performances. Based on the first version of CAN controller designed independently that has been taped out, an optimization design has been done to solve the fallibility when high speed communication on high latency bus happens. It aims to take another tape-out after redesign, simulation and verification to solve the discovered problems.

Key words: CAN bus, transmitter, delay, tape-out

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