摘要
根据点阵液晶显示器TFT3224-3.5在手持式仪器中的应用,提出了一种基于数字信号处理器(DSP)控制液晶显示的实现方法。针对液晶显示控制系统中遇到的大量数据的实时高速传输问题,采用具有快速计算能力和强大信息处理能力的TMS320F2812 DSP芯片。具体介绍了仪器的系统组成和DSP芯片及TFT3224-3.5的功能特性,并提出以TMS320F2812为控制核心的硬件电路,给出了C语言实现软件设计的具体方法。系统工作稳定,直观。
Based on the application of LCM TFT3224-3.5 in portable instrumen , an implement means of dominating LCD based on DSP control was presented in the paper. Aiming at the high speed transmission problem of plentiful real time data in LCD control system,the TMS320F2812 DSP,a high powered digital signal processor having fast computation capability and strong information processing capability,was adopted. The main characteristics of TMS320F2812 DSP and TFT3224-3.5 LCD controller was introduced in details, the hardware interface design scheme based on TMS320F2812 DSP as control core was put forth and the concrete way for its software design based on the Clanguage was given. This system is stable and intuitive.
出处
《现代显示》
2008年第10期36-40,共5页
Advanced Display
