基于DSP的TFT触摸屏接口设计及实现  

Design and Implementation of Thin Film Transistor Touch Screen Based on DSP

作　　者：彭宝新[1] 李博[1] 王振立[1] 冯小琴[1] 

机构地区：[1]中北大学电子与计算机科学技术学院,山西太原030051

出　　处：《电视技术》2013年第23期93-96,共4页Video Engineering

基　　金：山西省高校科技研究开发项目(20091018);山西省科技厅科技攻关项目(20100321057)

摘　　要：主要介绍了TMS320C6713与TFT-LCD彩屏的性能和应用。给出了MCASP口和GPIO口同时使用并设计与彩屏的硬件连接方案,描述了MCASP口和GPIO口工作的实际过程,实现了文本、图形的快速实时触摸输入和多种颜色的切换输入。软件部分由C语言编写,具有较强的可移植性。设计方案对其他型号的DSP器件具有较强的通用性和实用性。The performance and application of TMS320C6713 and TFT-LCD color screen are mainly introduced in this paper. The MCASP ports and GPIO ports are given, and hardware connectivity solutions with color ：screen can be designed and used at the same time. Not only the actual working process of the MCASP ports and GPIO ports can be successfully described, but also the rapid real-time touch input of texts and graphs can be realized under this method. At the same time, the switching input of different colors can also be realized. The software part is compiled in C language, and it has a relatively better portability. This design has a strong versatility and practicality for other types of DSP devices.

关 键 词：TMS320C6713 TFT-LCD MCASP GPIO 接口 触摸 C语言 

分 类 号：TN919.8[电子电信—通信与信息系统]