基于TMS320F2812的液晶显示模块SO12864设计

Design of liquid crystal display module SO12864 based on TMS320F2812

提出了一种基于DSP高速信号处理器控制实现LCD液晶显示的方案,介绍了DSP芯片TMS320F2812和液晶模块SO12864的功能特点,给出了TMS320F2812与液晶模块之间的接口设计。通过分析液晶模块的时序,阐述了在DSP中用软件编程模拟时序的方法,也即通过软件编程的方法解决了高速DSP处理器与慢速液晶模块之间时序不兼容的问题。通过在液晶上显示汉字,表明该系统显示效果良好,实现了对液晶模块SO12864的控制,完全达到了设计要求。

The proposal of controlling LCD based a high speed DSP has been given,TMS320F2812 digital signal processor and SO12864 LCD module are introduced,The interface between LCD module and DSP was provided.Described the method,that software simulating time sequence based on DSP throughout analyzing the time sequence of LCD module,The problem of time sequence non-compatible between a high speed DSP and a low speed LCD module can be solved by software program.Through displaying chinese character on LCD indicate that the system showed good results and achieved a better control of the LCD module SO12864.So it meets the requirements.