校园广播自动播放系统.doc
约20页DOC格式手机打开展开
校园广播自动播放系统,论文标准word格式排版 20页 8132字摘要：以at89s52单片机为主控制器和按键、显示、实时时钟及电机驱动等外围电路构成了具有定时开/关功能的播放系统。主控制器的作用是对数据的存取和处理，还有及时响应外部的三个中断：按键中断， 即t1计数器溢出中断；实时时钟更新结束中断；霍尔脉冲计数中断。选取实时时钟芯片ds1...
内容介绍
此文档由会员 莎士比亚 发布
论文标准WORD格式排版 20页 8132字
摘要：以AT89S52单片机为主控制器和按键、显示、实时时钟及电机驱动等外围电路构成了具有定时开/关功能的播放系统。主控制器的作用是对数据的存取和处理，还有及时响应外部的三个中断：按键中断， 即T1计数器溢出中断；实时时钟更新结束中断；霍尔脉冲计数中断。选取实时时钟芯片DS14285与控制器来实现自动播放功能，从而实现无人职守。DS14285 是一款8 位并行方式的时钟芯片,芯片采用地址/ 数据总线复用方式实现引脚的高效性，除了可向用户提供报时和闹钟功能外,它还具有自动后备电源功能和114 字节的用户RAM ,可以使时间和用户信息在系统掉电时不丢失。
Abstrat:A broadcast system with automatic on / off function was designed, which was composed of the main controller and peripheral circuits. A single-chip microcomputer AT89S52 was used as the main controller and the circuits consists of button, display, real-time clock and motor drives. The role of main controller is to access and to process the data. The main controller also responds timely to three outside interrupts, which are Key interruption, known as T1 counter overflow interruption, updated real-time clock interruption and Hall pulse counting interruption, respectively. To obtain the unattended function, a real-time clock chip of DS14285 and controller were used in the automatic playback capability. DS14285 is a 8-bit parallel manner clock chip which performs high efficiency by using address/data multiplex mode. The chip have a function of giving the correct time and using as alarm clock. It also has automatic backup battery and 114 bytes user RAM, which can make sure that the time and users’information in the system do not be lost when power fails.
关键词：校园广播；自动播放；电控机蕊；单片机；AT89S52
实时时钟；定时控制；DS14285；
目录
摘要 ………………………………………………………………………………3
引言 ………………………………………………………………………………4
1．方案论证与比较………………………………………………………………5
1．1总体方案比较………………………………………………………………5
1．2各模块方案比较……………………………………………………………6
1.2.1控制模块 ………………………………………………………………6
1.2.2 驱动电路模块………………………………………………………7
1.2.3时钟模块 ………………………………………………………………7
1.2.4显示模块………………………………………………………………7
2.系统设计与实现…………………………………………………………………8
2.1硬件设计 ……………………………………………………………8
2.2.1硬件组成 ………………………………………………………………8
2.2.2工作原理 ……………………………………………………12
2.2软件设计 ……………………………………………………………15
3．测试结果与分析……………………………………………………………20
4．总结…………………………………………………………
5．附录…………………………………………………………
参考文献…………………………………………………………
摘要：以AT89S52单片机为主控制器和按键、显示、实时时钟及电机驱动等外围电路构成了具有定时开/关功能的播放系统。主控制器的作用是对数据的存取和处理，还有及时响应外部的三个中断：按键中断， 即T1计数器溢出中断；实时时钟更新结束中断；霍尔脉冲计数中断。选取实时时钟芯片DS14285与控制器来实现自动播放功能，从而实现无人职守。DS14285 是一款8 位并行方式的时钟芯片,芯片采用地址/ 数据总线复用方式实现引脚的高效性，除了可向用户提供报时和闹钟功能外,它还具有自动后备电源功能和114 字节的用户RAM ,可以使时间和用户信息在系统掉电时不丢失。
Abstrat:A broadcast system with automatic on / off function was designed, which was composed of the main controller and peripheral circuits. A single-chip microcomputer AT89S52 was used as the main controller and the circuits consists of button, display, real-time clock and motor drives. The role of main controller is to access and to process the data. The main controller also responds timely to three outside interrupts, which are Key interruption, known as T1 counter overflow interruption, updated real-time clock interruption and Hall pulse counting interruption, respectively. To obtain the unattended function, a real-time clock chip of DS14285 and controller were used in the automatic playback capability. DS14285 is a 8-bit parallel manner clock chip which performs high efficiency by using address/data multiplex mode. The chip have a function of giving the correct time and using as alarm clock. It also has automatic backup battery and 114 bytes user RAM, which can make sure that the time and users’information in the system do not be lost when power fails.
关键词：校园广播；自动播放；电控机蕊；单片机；AT89S52
实时时钟；定时控制；DS14285；
目录
摘要 ………………………………………………………………………………3
引言 ………………………………………………………………………………4
1．方案论证与比较………………………………………………………………5
1．1总体方案比较………………………………………………………………5
1．2各模块方案比较……………………………………………………………6
1.2.1控制模块 ………………………………………………………………6
1.2.2 驱动电路模块………………………………………………………7
1.2.3时钟模块 ………………………………………………………………7
1.2.4显示模块………………………………………………………………7
2.系统设计与实现…………………………………………………………………8
2.1硬件设计 ……………………………………………………………8
2.2.1硬件组成 ………………………………………………………………8
2.2.2工作原理 ……………………………………………………12
2.2软件设计 ……………………………………………………………15
3．测试结果与分析……………………………………………………………20
4．总结…………………………………………………………
5．附录…………………………………………………………
参考文献…………………………………………………………
