#include?“beep.h“
//////////////////////////////////////////////////////////////////////////////////	?
//本程序只供學習使用，未經作者許可，不得用于其它任何用途
//ALIENTEK戰(zhàn)艦STM32開發(fā)板
//蜂鳴器驅動代碼	???
//正點原子@ALIENTEK
//技術論壇:www.openedv.com
//修改日期:2012/9/2
//版本：V1.0
//版權所有，盜版必究。
//Copyright（C）?廣州市星翼電子科技有限公司?2009-2019
//All?rights?reserved									??
//////////////////////////////////////////////////////////////////////////////////?	???

//初始化PB8為輸出口.并使能這個口的時鐘		????
//蜂鳴器初始化
void?BEEP_Init（void）
{
	RCC->APB2ENR|=1<<3;????	//使能PORTB時鐘	???	??
	GPIOB->CRH&=0XFFFFFFF0;?
	GPIOB->CRH|=0X00000003;	//PB.8?推挽輸出????
	BEEP=0;					//關閉蜂鳴器輸出
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????753??2012-09-02?23:04??基于戰(zhàn)艦版RC522+IIC\HARDWARE\BEEP\beep.c

?????文件????????681??2012-09-02?23:02??基于戰(zhàn)艦版RC522+IIC\HARDWARE\BEEP\beep.h

?????文件???????2785??2015-07-07?15:36??基于戰(zhàn)艦版RC522+IIC\HARDWARE\IIC\myiic.c

?????文件???????1360??2015-07-07?15:36??基于戰(zhàn)艦版RC522+IIC\HARDWARE\IIC\myiic.h

?????文件???????1501??2012-09-03?11:24??基于戰(zhàn)艦版RC522+IIC\HARDWARE\KEY\key.c

?????文件????????825??2012-09-03?11:24??基于戰(zhàn)艦版RC522+IIC\HARDWARE\KEY\key.h

?????文件??????16156??2012-08-02?00:02??基于戰(zhàn)艦版RC522+IIC\HARDWARE\LCD\FONT.H

?????文件??????49089??2015-04-13?11:12??基于戰(zhàn)艦版RC522+IIC\HARDWARE\LCD\ILI93xx.c

?????文件???????8960??2013-01-20?17:21??基于戰(zhàn)艦版RC522+IIC\HARDWARE\LCD\LCD.h

?????文件????????934??2015-07-07?14:51??基于戰(zhàn)艦版RC522+IIC\HARDWARE\LED\led.c

?????文件????????685??2012-09-02?22:09??基于戰(zhàn)艦版RC522+IIC\HARDWARE\LED\led.h

?????文件??????13557??2015-07-07?15:36??基于戰(zhàn)艦版RC522+IIC\HARDWARE\RC522\myrc522.c

?????文件???????5597??2015-07-07?15:38??基于戰(zhàn)艦版RC522+IIC\HARDWARE\RC522\myrc522.h

?????文件????????399??2011-05-09?18:17??基于戰(zhàn)艦版RC522+IIC\keilkill.bat

?????文件??????34292??2015-07-07?15:37??基于戰(zhàn)艦版RC522+IIC\OBJ\beep.crf

?????文件????????350??2015-07-07?15:37??基于戰(zhàn)艦版RC522+IIC\OBJ\beep.d

?????文件??????39420??2015-07-07?15:37??基于戰(zhàn)艦版RC522+IIC\OBJ\beep.o

?????文件??????34988??2015-07-07?15:37??基于戰(zhàn)艦版RC522+IIC\OBJ\delay.crf

?????文件????????358??2015-07-07?15:37??基于戰(zhàn)艦版RC522+IIC\OBJ\delay.d

?????文件??????40672??2015-07-07?15:37??基于戰(zhàn)艦版RC522+IIC\OBJ\delay.o

?????文件??????40573??2015-04-13?11:12??基于戰(zhàn)艦版RC522+IIC\OBJ\exti.crf

?????文件??????????0??2015-07-07?14:51??基于戰(zhàn)艦版RC522+IIC\OBJ\exti.d

?????文件????????399??2015-07-07?14:51??基于戰(zhàn)艦版RC522+IIC\OBJ\exti.__i

?????文件??????62455??2015-07-07?15:37??基于戰(zhàn)艦版RC522+IIC\OBJ\ili93xx.crf

?????文件????????623??2015-07-07?15:37??基于戰(zhàn)艦版RC522+IIC\OBJ\ili93xx.d

?????文件??????84424??2015-07-07?15:37??基于戰(zhàn)艦版RC522+IIC\OBJ\ili93xx.o

?????文件??????35468??2015-07-07?15:37??基于戰(zhàn)艦版RC522+IIC\OBJ\key.crf

?????文件????????377??2015-07-07?15:37??基于戰(zhàn)艦版RC522+IIC\OBJ\key.d

?????文件??????41264??2015-07-07?15:37??基于戰(zhàn)艦版RC522+IIC\OBJ\key.o

?????文件??????34402??2015-07-07?15:37??基于戰(zhàn)艦版RC522+IIC\OBJ\led.crf

............此處省略82個文件信息