图形液晶显示器在移频测试仪中的应用

The Application Of Figures LCD in the Railway Frequency Shift Detector

介绍了点阵式图形液晶显示器在铁路移频测试仪中的应用,给出了铁路移频测试仪的整个硬件框图;阐述液晶显示控制器SEED1335的性能特点和指令系统;详细介绍了DSP2812与点阵式图形液晶显示器的硬件接口电路、时序匹配和初始化程序的编写。

The paper introduces the application of dot-Matrix figures LCD in the railway frequency shift detector, and presents the design block-diagram of the frequency shift detector system based on hardware. And stated the functions and features of SED1335 Controller and instruction system.The interface circuit between DSP2812 and dot matrix figures LCD module, the time sequence matching and programming device initialization are described in detail.