一个未能形成产品的产品设计（商业原因），用了PHILIPS的LPC952单片机，320X240的图形点阵液晶，RA8803控制器，带汉字库，有波形曲线的绘制，这个设计巧妙的利益单片机的键盘中断功能对光栅的双正交脉冲进行测量以实现对双向运动的识别与测量，实际测试效果很好。对用点阵液晶绘制曲线和利用光栅进行双向运动测量的朋友有帮助。-Machine features of the keyboard interrupt Biorthogonal pulse grating measured in order to achieve a two-way movement of identification and measurement, the actual well test. Drawing on the use of dot-matrix liquid crystal grating for the use of curves and bi-directional measurement campaign to help friends.