摘要
为了采集到高精度、低差错率的导航参数,采用了高精度的A/D转换器件AD677和TI的TMS320F2812来实现对微机械陀螺、加速度计和温度传感器采样过程的控制,同时利用TMS320F2812的eCAN模块来实现与主控计算机的数据通讯和地面测试。首先介绍了导航计算机信息处理系统的总体设计,然后分析了CAN报文帧格式、整个系统软件设计的流程图、AD677采集软件的设计、CAN报文发送程序设计以及CAN总线通讯测试界面的设计。
In order to get the navigation parameters of the high precision, low error rate, the paper uses a high-precision A/D conversion device called AD677 and TMS320F2812 that belongs to TI company to control the sampling process of the gyroscope, accelerometer and temperature sensor. In addition, it makes use of the eCAN module of TMS320F2812 to achieve ground testing and data communication with host computer. Firstly, it introduces the total design of navigation computer information processing system, then analyses the frame format of CAN message, the flow chart of navigation information processing system software design, AD677 data acquisition software design, CAN message transmission programming and the testing user interface design of CAN bus communication.
出处
《信息技术》
2011年第11期54-57,共4页
Information Technology
