Based on the successful transplantation of the embedded real-time operating system μC/OS-II to the TMS320LF2407A DSP, the paper introduces how to develop the corresponding CAN bus remote communication module based on the μC/OS-II real-time system in the distributed data acquisition system of the power system. The communication mechanism and interrupt mechanism of the μC/OS-II multi-tasking operating system are explained, and the implementation process of the CAN bus driver in the DSP real-time mode is analyzed in detail. Keywords: RTOS, μC/OS-II, data acquisition, CAN bus, multi-tasking, remote communication 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.
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