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汽车IP模块

CAN XL

CAN进化的下一步

Bosch CAN_XL Logo





CAN XL通过保持CAN协议的优势(例如无损仲裁的冲突解决),为高达10Mbit / s的数据速率提供了出色的解决方案。

关于比特率,CAN XL填补了CAN FD与100BASE-T1(以太网)之间的空白。

状态

Bosch CAN XL
填补CAN FD和以太网之间的空白

The specification of the CAN XL protocol and physical layer is done by the CiA Special Interest Group CAN XL in the CiA610 document series.

CiA CAN XL规范于2018年12月开始,目标是在2020年底之前拥有OSI第2层的技术稳定的CAN XL规范(称为CAN XL协议)。第二步,将开始进行ISO标准化。此外,还将同时更新许多其他与CAN相关的标准,以支持CAN XL。示例包括根据ISO16845和物理层的CAN一致性测试。

关键协议特征

 Bosch CAN_XL frame
  • 净数据速率高达10Mbit/s
  • 高达2048字节的大数据字段支持使用更高层的协议,例如IP(Internet协议),甚至可以传输完整的以太网帧
  • 与CAN FD的互操作性,用于混合FD/XL网络

物理层

Bosch CAN XL
混合FD/XL网络

CAN XL将可用于所有收发器::

  • 经典CAN高达1Mbit/s
  • CAN FD高达2Mbit/s, CAN FD-SiC高达5-8Mbit/s
  • CAN XL高达10 Mbit/s及以上 (待开发)

Publications

Introduction to CAN XL

CAN XL at CAN in Automation (CiA)

Proceedings of the postponed international CAN Conference (iCC) 2020 conference
The proceedings include the following papers from Bosch:

  • F. Hartwich, “Introducing CAN XL into CAN Networks” in Proceedings of the 17th i nternational CAN Conference, Baden Baden, Germany, 2020.
  • A. Mutter, "CAN XL error detection capabilities", in Proceedings of the 17th international CAN Conference, Baden-Baden, Germany, 2020.
  • C. Senger, “CRC Error Detection for CAN XL” in Proceedings of the 17th international CAN Conference, Baden Baden, Germany, 2020.