【摘要】 提出一种嵌入式系统实现的资源可裁剪、多功能图文显示LED语音播报屏设计,采用STM32F107做主控处理器,EPM570做LED屏驱动芯片,运行RTX实时操作系统进行任务和资源调配,并移植LwIP实现网络通信。系统结构简单,资源可裁剪,显示效果多样,同步语音播报和网络对时效果良好。系统操作简便、实用,具有较好的应用前景。更多还原

【Abstract】 Proposes a scalable multi-function LED screen design for graphic displays and voice broadcast using embedded system.It uses the STM32F107 as processor,the EPM570 as the driving circuit of the LED screen and runs the RTX realtime operating system to coordinate the resources and tasks,transplants LwIP protocol to realize networks.This system has a simple and scalable structure and shows great the performance on graphic displays,voice broadcast and network time protocol,gives a valuable application perspective.更多还原