基于STM32F103的手写绘图板设计  

Design of handwritten drawing board based on the STM32F103

作　　者：魏浩然[1] 倪继锋[1] 龙艳花[1] 

机构地区：[1]上海师范大学信息与机电工程学院,上海200234

出　　处：《上海师范大学学报（自然科学版）》2016年第5期543-547,共5页Journal of Shanghai Normal University(Natural Sciences)

基　　金：上海高校青年教师培养资助计划(ZZshsf14026)

摘　　要：本设计采用铜板电阻分压电路,基于AD7982的AD转换模块、STM32F103的主控制模块和LCD12864的液晶显示模块设计了一种手写绘图板.通过查找铜板电阻-电压变化关系的数据表,进行软件编程和优化,实现了表笔触动15 cm×10 cm覆铜板时,在液晶屏上显示触点坐标及象限功能、文字显示和表笔轨迹追踪、显示功能.本设计精度高、功耗低,是一种较理想的设计方案.A bleeder circuit of copper plate resistance is used to design a drawing board, in which the AD conversion module is based on AD7982, the master control module is based on the STM32F103, and the liquid crystal display module is based on LCD12864. By searching the linear data sheet which records the change of copper plate resistance-voltage ,the drawing board can display the coordinates and quadrant of the contact,the text and the track of the pen on the LCD screen when the pen touches on the 15 cm × 10 cm copper plate. This design is an ideal solution because of its high precision and low power consumption.

关 键 词：STM32 AD7982 LCD12806 坐标定位 轨迹追踪 

分 类 号：TP368[自动化与计算机技术—计算机系统结构]