在將嵌入式實時操作系統(tǒng)μC/OS-II 成功移植到TMS320LF2407A 型號的DSP 的基礎上，論文介紹了如何在電力系統(tǒng)集散式的數(shù)據(jù)采集系統(tǒng)中基于μC/OS-II 實時系統(tǒng)開發(fā)相應的CAN 總線遠程通信模塊。闡述了μC/OS-II 多任務操作系統(tǒng)通信機制和中斷機制，詳細分析了在DSP 實時模式下CAN 總線驅(qū)動的實現(xiàn)過程。
關鍵詞：RTOS，μC/OS-II，數(shù)據(jù)采集，CAN 總線，多任務，遠程通信

CAN BUS Building Block Based on Embedded System μC/OS-II Zhong Jianwen Cai Xu (Electrical Engineering Department of Shanghai JiaoTong University） Abstract: On the basis of successfully porting the RTOS μC/OS-II to TMS320LF2407A DSP, this paper introduces how to design CAN bus communication program module and how to embed it into μC/OS-II as a building block. The communication mechanism and the ISR treatment mechanism among multi-tasks based on μC/OS-II were discussed in detail.
Key Words: RTOS, μC/OS-II, DSP, CAN Bus, Multi-Tasks, Remote Communication.