CAN總線具有配置靈活、應用范圍廣的特點，C8051f040單片機功能強大，集成了CAN總線控制器。本文提出了一種基于C8051f040的CAN總線系統智能節點的設計方案，給出了相應的硬件和軟件設計，實際運行結果驗證了設計的正確性，其通用性好、可靠性高，具有廣泛的應用前景。
關鍵詞：C8051f040；CAN總線；智能節點
Abstract: An international standard about CAN has been formed. The CAN bus is one of the most promising field bus. With development of the performance-price ratio and developing method for C8051f040，it has been used to all fields of our society. In this paper，a feasible solution is updated to implement a intelligent node design on the CAN bus with C8051f040. This paper also presents a hardware and software implementation of intelligent node. The operation proves the correctness of the design. The design has a good versatility, high reliability, good cost performance and it has a wide application prospect.
Keywords: C8051f040; can bus; intelligent node