【摘要】 针对学校教学与管理的具体需要,本文介绍了一种以单片机为核心的校园广播系统,硬件上结合了时钟、语音芯片和液晶显示屏,给出了硬件基本的框图和系统软件结构,并对控制字作了简单介绍,实践表明其与专人管理校园广播相比有很大的优越性.更多还原

【Abstract】 In this paper is mainly concerned with a campus broadcasting system based on MCU whose hardware includes clock, voice chip and LCD. Both charts about hardware components as well as software systems and a brief introduction to control word are given. After a period of practical test, the system has shown its superiority over control merely by human in various aspects .更多还原