基于STM32的FSMC接口驱动TFT彩屏设计  

Method to drive TFT color screen by means of FSMC interface on STM32

作　　者：汤莉莉[1] 黄伟 

机构地区：[1]湖北大学知行学院,湖北武汉430011 [2]湖北航天技术研究院总体设计所,湖北武汉430040

出　　处：《现代电子技术》2013年第20期139-141,144,共4页Modern Electronics Technique

基　　金：2011年湖北省自然科学基金计划资助项目(2011CDC082)

摘　　要：TFT-LCD技术是微电子技术和LCD技术巧妙结合的高新技术。随着人们对图像清晰度、刷新率、保真度的要求越来越高,TFT-LCD的应用范围越来越广。介绍了TFT数字彩屏的工作原理,利用STM32处理器的FSMC接口设计出了一种能直接驱动数字液晶屏的方法。设计的硬件电路和软件程序均能对显示控制芯片进行有效的控制。在实际应用中显示清晰流畅,并且CPU有足够的时间来处理用户程序。该方案能成功应用在电脑横机的人机界面显示中,且其硬件电路结构简单、控制方式灵活、对于其他型号的接口芯片也能提供参考。TFT-LCD technology is a unique combination of high-tech microelectronic technology and LCD technology. Along with the increasingly high demands of the image resolution,fidelity and refresh rate,TFT-LCD is widely used. The work-ing principle of digital TFT color screen is described in this paper,a way to directly drive digital liquid crystal screen by means of FSMC interface on STM32 processor was designed. The autonomously-designed hardware circuit and software program can ef-fectively control the display control chip. The method displays clearly and smoothly in practical application. There is enough time for the CPU to process the user’s program. This scheme was successfully applied to the display on human-machine inter-face of computer knitting machine. its hardware circuit is simple in structure,flexible in control mode,and can provide refer-ence for other model’s interface chips.

关 键 词：TFT DMA FSMC STM32F103VE 

分 类 号：TN911-34[电子电信—通信与信息系统] TP33[电子电信—信息与通信工程]