摘要
基于DSP的导航系统数据通信系统,硬件以F2812提高系统集成,软件采用基于FIFO的串口单工、双单工和半双工相结合,中断和查询相结合的通讯方式。其GPS采用接收到字符即产生中断的方法,FIFO只起到缓冲作用,并在系统接收中断中,判断是否收到帧头。系统软件设计含:F2812串口编程、GPS接收处理以及无线电、任务平台通讯处理。
For the data communication system of navigation system for unpiloted aircraft based on DSP, the integrity of system is enhanced with F2812. The serial communication interface （SCI） for single, double-single or half-duplex communication based on First In First Out （FIFO） is adopted, and communication mode combined interrupt and query was used in system software. An interrupt is generated when a single character is achieved during receiving GPS information. And the receive First In First Out （FIFO） for GPS only takes as a buffer. It is judged that whether the head of frame is detected in the receive Interrupt Service Routine （ISR）. The software design of system contains F2812 SCI programming, GPS receiving disposal and communication with radio and task-platform.
出处
《兵工自动化》
2005年第6期10-11,共2页
Ordnance Industry Automation
关键词
串口通信
导航系统
无人机
DSP2812
Serial communication
Navigation system
Unpiloted aircraft
DSP2812
