摘要
提出了一种高速DSP处理器与点阵液晶显示模块的接口电路设计方案.采用DSP的GPIO通过带电平转换的总线驱动器直接与液晶模块的数据线和控制信号接口,实现了二者的协调工作.给出了实现液晶模块初始化和汉字显示的软件设计思想.该方案结构简单,可以实现液晶的稳定显示输出.
A scheme to design the interface between a high speed digital signal processor and liquid crystal display was proposed. Using the general purpose I/O of DSP and bus translating transceiver to drive the LCD data bus and control signal, the DSP and LCD coordinate operation was implemented. The software flowcharts to initialize LCD and display one Chinese character were given. The scheme has a simple structure, and could realize steady display output.
出处
《应用科技》
CAS
2010年第7期22-24,共3页
Applied Science and Technology
关键词
数字信号处理器
液晶显示器
接口设计
digital signal processor
liquid crystal display
interface design
