基于FPGA的多功能LCD显示控制器设计

A multifunctional LCD controller design based on FPGA

通过对LCD1602/LCD12864显示模块控制时序和指令集的对比分析,利用Verilog HDL描述语言完成了多功能LCD显示控制模块的IP核设计.所设计的LCD显示控制器具有很好的可移植性,只需通过端口的使能参数配置便可以驱动LCD1602/LCD12864模块实现字符或图形的实时显示,并且该多功能LCD控制器的可行性也在CycloneII系列的EP2C5T144C8 FPGA芯片上得到了很好的验证。

Based on comparison and analysis of LCD1602/LCD12864 display module control time sequence and the instruction set, this paper presents a new design to achieve multifunctional LCD controller IP core with Verilog HDL The design has the advantages of real-time display and easy portability; it can drive the LCD1602/LCD12864 module to realize the character or graphic display by the eoniiguring parameter of the input port. Moreover, the design had been successfully implemented on FPGA development board （Ahera EP2C5T144CS）.