TMS320F2812与液晶显示模块的接口电路及其程序设计

Design of Interface Circuit and Program for TMS320F2812 and LCD Module

介绍了DSP芯片TMS320F2812和液晶模块MGLS-12032的功能特点以及TMS320F2812与液晶模块之间的接口设计方法,通过适当的电路设计解决了电平不兼容的问题。通过分析液晶模块的时序,阐述了在TMS320F2812中用软件模拟时序的方法,也即通过软件的方法解决了高速DSP处理器与慢速液晶模块之间时序不兼容的问题,实现了对液晶模块MGLS-12032的控制。

TMS320F2812 digital signal processor and MGLS-12032 LCD module are introduced. The interface circuit between the digital signal processor and the LCD module is discussed. By designing a proper interface circuit between the DSP controller and the LCD module, the problem of electrical level compatibility is settled. According to the timing chart of the LCD module, this paper shows how to design LCD display program to control the LCD module properly. By this way the compatibility problem between a high speed one is solved well.