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#include "beep.h"
#include "systick.h"
void BEEP_Init(void)
{
GPIO_InitTypeDef GPIO_mode;
RCC_APB2PeriphClockCmd( BEEP_PORT_RCC, ENABLE ); //使能GPIOB時鐘
GPIO_mode.GPIO_Pin = BEEP_PIN;
GPIO_mode.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_mode.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(BEEP_PORT, &GPIO_mode);
}
void Sound(u16 frq)
{
u32 n;
if(frq != 1000)
{
n = 500000/((u32)frq);
PBeep = 0;
delay_us(n);
PBeep = 1;
delay_us(n);
}else
delay_us(1000);
}
void play(void)
{
// 低7 1 2 3 4 5 6 7 高1 高2 高3 高4 高5 不發音
uc16 tone[] = {247,262,294,330,349,392,440,294,523,587,659,698,784,1000};//音頻數據表
//紅塵情歌
u8 music[]={ 5,5,6,8,7,6,5,6,13,13,//音調
5,5,6,8,7,6,5,3,13,13,
2,2,3,5,3,5,6,3,2,1,
6,6,5,6,5,3,6,5,13,13,
5,5,6,8,7,6,5,6,13,13,
5,5,6,8,7,6,5,3,13,13,
2,2,3,5,3,5,6,3,2,1,
6,6,5,6,5,3,6,1,
13,8,9,10,10,9,8,10,9,8,6,
13,6,8,9,9,8,6,9,8,6,5,
13,2,3,5,5,3,5,5,6,8,7,6,
6,10,9,9,8,6,5,6,8
};
u8 time[] = { 2,4,2,2,2,2,2,8,4, 4, //時間
2,4,2,2,2,2,2,8,4, 4,
2,4,2,4,2,2,4,2,2,8,
2,4,2,2,2,2,2,8,4 ,4,
2,4,2,2,2,2,2,8,4, 4,
2,4,2,2,2,2,2,8,4, 4,
2,4,2,4,2,2,4,2,2,8,
2,4,2,2,2,2,2,8,
4, 2,2,2, 4, 2,2,2, 2,2,8,
4, 2,2,2,4,2,2,2,2,2,8,
4, 2,2,2,4,2,2,5,2,6,2,4,
2,2 ,2,4,2,4,2,2,12
};
u32 yanshi;
u16 i,e;
yanshi = 10;
for(i=0;i<sizeof(music)/sizeof(music[0]);i++){
for(e=0;e<((u16)time[i])*tone[music[i]]/yanshi;e++){
Sound((u32)tone[music[i]]);
}
}
}

復制代碼

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