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

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