2、制。关键词：AT89S51 数码管 动态显示 串口通信 键盘AbstractThe system USES the MSC - 51 series microcontroller to AT89S51 as the center device to design timing alarm cl...ock. Timing alarm clock is using single-chip microcomputer control circuit to realize clock, minutes and seconds digital display timing device. In
3、 this design, using LED digital tube rolling shows, minutes and seconds, with 24 hours time way, according to the principle of dynamic display of digital tube to display, with 12 MHZ of crystal oscillator produce oscillation pulse, the timer count. In this design, circuit in addition to display t
4、he time the function outside, still can realize the time adjustment and the adjustment of the alarm clock time. On improving the module, but also through the serial communication to realize the experimental box, computer control.Keywords: AT89S51; keyboard.Dynamic digital tube display, serial com
5、munication control ...目录第一章设计任务……………………………………………..51.1设计背景及意义…………………………………………….51.2设计目的…………………………………………………….51.3设计环节及进程安排……………………………………….6第二章系统硬件设计及实现…………………………………72.1硬件系统概述……………………………………………….72.2硬件系统框图………………………………………………7第三章 课程总结…………………………………………….11参考文献…………………………………………………….13附录…………………………………………………
