交流电源功率控制器(APCU)是实现飞机电气负载控制与电源自动化管理的重要组成部分。系统采用CAN总线设计实现了APCU与供电系统处理机和机电综合管理系统的通信。利用流和管道技术编写了基于DSP/BIOS的CAN总线的设备驱动程序。为了满足通信需求,本论文中共设计了2个CAN接口,一个为F2812内置的CAN接口模块,另一个为通过SJA1000的扩展CAN接口模块以备用。通过实际的通信试验,结果表明系统通信运行可靠,数据传输准确,符合预期的设计目标。 AC Power Power Controller (APCU) is an important part of aircraft electrical load control and power automation management. The system adopts CAN bus design to realize the communication between APCU and power supply system processor and mechanical and electrical integrated management system. The use of flow and pipeline technology based on DSP / BIOS prepared CAN bus device driver. In order to meet the communication requirements, this paper designed a total of two CAN interfaces, one for the F2812 built CAN interface module, and the other through the SJA1000 expansion CAN interface module to spare. Through the actual communication test, the results show that the system communication is reliable and the data transmission is accurate, in line with the expected design goals.