文件名称:baojin_chanshenqi
- 所属分类:
- 单片机(51,AVR,MSP430等)
- 资源属性:
- [WORD]
- 上传时间:
- 2012-11-26
- 文件大小:
- 41kb
- 下载次数:
- 0次
- 提 供 者:
- ol***
- 相关连接:
- 无
- 下载说明:
- 别用迅雷下载,失败请重下,重下不扣分!
介绍说明--下载内容均来自于网络,请自行研究使用
程序实现:
用P1.0输出1KHz和500Hz的音频信号驱动扬声器,作报警信号,要求1KHz信号响100ms,500Hz信号响200ms,交替进行,P1.7接一开关进行控制,当开关合上响报警信号,当开关断开告警信号停止.-Procedures to achieve: The P1.0 output 1KHz and 500Hz audio signal driver speaker for alarm signals, require signal 1KHz ring 100ms, 500Hz signal ring 200ms, alternating, P1.7 access control switch 1, when the switch closed ring alarm signal, when switching off alarm signal to stop.
用P1.0输出1KHz和500Hz的音频信号驱动扬声器,作报警信号,要求1KHz信号响100ms,500Hz信号响200ms,交替进行,P1.7接一开关进行控制,当开关合上响报警信号,当开关断开告警信号停止.-Procedures to achieve: The P1.0 output 1KHz and 500Hz audio signal driver speaker for alarm signals, require signal 1KHz ring 100ms, 500Hz signal ring 200ms, alternating, P1.7 access control switch 1, when the switch closed ring alarm signal, when switching off alarm signal to stop.
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baojin_chanshenqi.doc