【摘要】 驾驶员指示仪系统采用MSP320×240-7N型内藏控制器式图形液晶显示器,并用89C51作为微处理系统控制显示,以满足驾驶员目的地导航和自主导航。中央处理单元通过通讯单元得到GPS定位定向数据,经过处理得到行驶所需的各种信息如行驶方向、行驶距离和行驶位置等等。为克服MSP内藏字符发生器CGROM中8×8点阵字符过小,采用将字符放大一倍,即将每个点垂直重复显示一遍的方法。为简化计算,图形计算采用模块化程序并利用其对称性生成功能。更多还原

【Abstract】 The application of LCD in direction meter for driver is introduced in this paper. LCD with in-building MSP320X240-7N controller is applied in the meter system. 89C51 microcomputer is used as the control system to control display, then, it satisfies automatic navigation and manual navigation of driver. The microprocessor unit receives GSP data by communication unit and processes GSP data, so, all kinds of information is obtained, such as driving direction, driving distance and driving position etc. In order to overcome the problem that character is too small CGROM of word generator, The method that can amplify character and repeat display is applied, and so It can simplify calculation. Modularization program and mirror image function is used in graphics calculation更多还原