提出了一种基于FPGA的DSP与ARINC429总线控制器的接口设计方法和电路,该设计方法也适用于DSP与串口控制器、CAN控制器等接口的扩展设计。首先,分析了TMS320C6713 EMIF与HI-8582的主要信号与时序,表明通过FPGA实现译码逻辑和时序控制就可实现TMS320C6713与HI-8582之间的通信;接着,给出了详细的硬件设计和接口逻辑设计;然后,讨论了ARINC429总线驱动软件设计;最后,通过环境试验和实际应用验证了该接口电路工作稳定可靠。

A design method and circuit of the interface between DSP and ARINC429 bus controller based on FPGA are given.This design method is also suitable for the interface expansion design of DSP and serial controller,CAN controller,etc.Firstly,the main signals and timing of TMS320C6713 EMIF and HI-8582 are analyzed,and the analysis shows that the communication between TMS320C6713 and HI-8582 can be realized by implementing decoding logic and timing control through FPGA.Then the detailed hardware design and the interface logic design are discussed.Then the ARINC429 bus driver software design is discussed.Finally,the stable and reliable work of the interface circuit is verified through environmental test and practical application.