针对DSP运动控制器的CAN总线软硬件设计

Software and hardware design of the CAN bus for the DSP motion controller

介绍了CAN总线的优良性能,给出了针对DSP运动控制器的CAN总线系统结构框图。主要完成了对TMS320LF2407A运动控制器上CAN总线硬件接口电路的设计和软件的实现。实现了对TMS320LF2407A的CAN总线通信软件的模块化设计,并用实验验证其正确性。在此基础上,CAN总线通信的实现只需要修改相应的几个寄存器即可,大大降低了软件设计的周期,也为DSP的CAN总线硬件电路的设计提供了参考。

This article depicts the excellent periormance of the CAN bus, and the block diagram of the CAN bus system for the DSP motion controller is given. It completes the design of the hardware interface circuit of CAN bus for the motion controller TMS320LF2407A mainly, as well as the software realization in this circuit. It realizes the modular design of the CAN bus communication software for TMS320LF2407A, and experimentally verifies the correctness. In the future, to realize the CAN bus communication only needs to modify several registers which can reduce the design cycle of the software greatly. It also provides a reference for the design of CAN bus hardware circuit of DSP.