摘要通过对嵌入式系统及其应用开发一般过程的理解,在熟悉SEP3203芯片、GE01MB开发板的使用方法及仿真环境的基础上,分析SEP3203芯片中GPIO的控制方法即GPIO口的配置和读写方法,分析74HC595移位寄存器的使用方法。然后分析其必要的外围电路的组成,设计相应的硬件电路和相关的软件程序,完成对基于嵌入式系统的LED显示控制电路的设计,并在SEP3203开发平台上对显示控制程序进行调试运行,最终能够接收键盘的输入,并作为嵌入式系统LED的显示的内容,同时显示的内容可以按照给定的速度级别进行横向滚动显示。19126
关键词 嵌入式 SEP3203 LED 键盘
毕业设计说明书(论文)外文摘要
Title The design of control circuit of LED display based on Embedded System
Abstract
Based on the understanding of the embedded system and application development process and the application of the SEP3203 chip and GE01MB development board and the simulation environment, We should analysis the method to control the configuration and read and writing in GPIO SEP3203 chip and the method of using 74HC595 shift register.Then, we analyze the necessary peripheral circuit and design the corresponding hardware circuit and software program related. Finally, we complete the design of control circuit of LED display based on embedded system, and debugged on the display control program in the SEP3203 software development platform. The results are that the digital tube can display the keyboard input, the display content can be horizontal scrolling display according to the given speed level.
Keywords Embedded SEP3203 LED Keyboard