电工优优今天要和大家分享的压电式蜂鸣器驱动程序编写示例相关信息,接下来我将从压电式蜂鸣器驱动电路图,压电式蜂鸣器驱动电路,压电式蜂鸣器驱动电流这几个方面来介绍。
压电式蜂鸣器的驱动程序如何编写?压电式蜂鸣器驱动程序编写示例
举例说明
#define beep_nor() —–
#define beep_on() —–
#define beep_off() —–
typedef struct _BEEP
{
UINT8 MuteState; //静音状态 : 开、关
UINT8 BeepState; //蜂鸣器状态: 开、关
UINT8 BeepCount; //蜂鸣器响的次数
UINT8 BeepOnTime; //蜂鸣器响的时间
UINT8 BeepOffTime; //蜂鸣器不响的时间
UINT8 BeepWaitTime; //蜂鸣器响和不响的定时时间
UINT8 BeepRefresh; //是否需要刷新蜂鸣器显示图标
}BEEP_STRUCT;
//—————————–
//n-响的次数,btime-响的时间,gtime-不响的时间
//—————————–
void beep(BEEP_STRUCT *beep, UINT8 n,UINT8 btime,UINT8 gtime)
{
if((beep->MuteState ==0)&&(n>0)) //非静音
{
beep->BeepState = 1; //响
beep->BeepCount = n;
beep->BeepOnTime = btime;
beep->BeepOffTime = gtime;
beep->BeepWaitTime = 3*beep->BeepOnTime;
}
}
//—————————–
//在100ms的定时器处理中调用
//—————————–
void beep_deal(BEEP_STRUCT *beep)
{
if(beep->BeepState != 0){ //响
if(beep->BeepCount >0){
if(beep->BeepWaitTime>0){
beep->BeepWaitTime–;
}
else{
beep->BeepWaitTime = 3*beep->BeepOffTime;
beep->BeepState = 0; //不响
beep->BeepCount–; //响的次数减1
}
}
else{
beep->BeepState = 0;
}
}
else{
if(beep->BeepCount>0){
if(beep->BeepWaitTime>0){
beep->BeepWaitTime–;
}
else{
beep->BeepWaitTime = 3*beep->BeepOnTime;
beep->BeepState = 1;
}
}
}
if(beep->BeepState !=0){
beep_on();
}
else{
beep_off();
}
}
蜂鸣器程序举例二:
#define uchar unsigned char
#define uint unsigned int
#define ulong unsigned long
//#define delay
//#difine beep
#include
//sbit P1_2;
unsigned char count;
void delay(unsigned int x)
{
unsigned int i,j;
for(i=x;i>0;i–)
{
for(j=250;j>0;j–)
P1_7=~P1_7;//喂狗
}
}
void beep0(void)
{
P1_2 = 0;
delay(100); //短鸣
P1_2 = 1;
delay(500); //停一会
}
void beep1(void)
{
P1_2 = 0;
delay(100); //短鸣
P1_2 = 1;
delay(500); //停一会
P1_2 = 0;
delay(300); //长鸣
P1_2 = 1;
delay(500); //停一会
}
void main(void)
{uint n,t,m;
while(1)
{
P1_7=~P1_7;
for(n=0;n<8;)
{ t=n%8;
m=t%2;
P1_2=!P1_2;
if(m==1)
{ switch (m)
{
case 1:beep1();
break;
default:break;
}
}
else
switch(t)
{case 0:beep0();
break;
case 2:beep0();
break;
case 4:beep1();
break;
case 6:beep0();
break;
default:break;
}
n++;
}
}
}
以上就是"电工优优"为大家介绍的压电式蜂鸣器驱动电路图的相关信息,想了解更多"压电式蜂鸣器驱动程序编写示例,压电式蜂鸣器驱动电路图,压电式蜂鸣器驱动电路,压电式蜂鸣器驱动电流"相关知识,请收藏电工无忧吧。