标签：time() lse 蜂鸣器 switch uid else cal 驱动程序 unsigned
#include "REG52.H"
#define const_time_05s 222
#define const_time_1s 444
#define const_time_3s 1332
#define const_time_6s 2664
#define const_voice_short 40
#define const_voice_long 200
void initial_myself();
void initial_peripheral();
void delay_long(unsigned int uiDelaylong);
void led_flicker();
void alarm_run();
void T0_time();
sbit led_dr=P3^5;
sbit beep_dr=P1^5;
unsigned char ucLedStep=0;
unsigned int uiTimeLedCnt=0;
unsigned char ucAlarmStep=0;
unsigned int uiTimeAlarmCnt=0;
unsigned int uiVoiceCnt=0;
void main()
{
initial_myself();
delay_long(100);
initial_peripheral();
while(1)
{
led_flicker();
alarm_run();
}
}
void led_flicker() //第三区 LED闪烁程序
{
switch(ucLedStep)
{
case 0:
if(uiTimeLedCnt>=const_time_05s)
{
uiTimeLedCnt=0;
led_dr=0;
ucLedStep=1;
}
break;
case 1:
if(uiTimeLedCnt>=const_time_05s)
{
uiTimeLedCnt=0;
led_dr=1;
ucLedStep=0;
}
break;
}
}
void alarm_run()
{
switch(ucAlarmStep)
{
case 0:
if(uiTimeAlarmCnt>=const_time_3s)
{
uiTimeAlarmCnt=0;
uiVoiceCnt=const_voice_short;
ucAlarmStep=1;
}
break;
case 1:
if(uiTimeAlarmCnt>=const_time_6s)
{
uiTimeAlarmCnt=0;
uiVoiceCnt=const_voice_long;
ucAlarmStep=0;
}
break;
}
}
void T0_time() interrupt 1
{
TF0=0;
TR0=0;
if(uiTimeLedCnt<0xffff)
uiTimeLedCnt++;
if(uiTimeAlarmCnt<0xffff)
uiTimeAlarmCnt++;
if(uiVoiceCnt!=0)
{
uiVoiceCnt--;
beep_dr=0;
}
else
{
;
beep_dr=1;
}
TH0=0xf8;
TL0=0x2f;
TR0=1;
}
void delay_long(unsigned int uiDelaylong)
{
unsigned int i;
unsigned int j;
for(i=0;i<uiDelaylong;i++)
for(j=0;j<500;j++)
;
}
void initial_myself()
{
TMOD=0x01;
TH0=0xf8;
TL0=0x2f;
led_dr=1;
beep_dr=1;
}
void initial_peripheral()
{
EA=1;
ET0=1;
TR0=1;
}
蜂鸣器的驱动程序---吴坚鸿
标签：time() lse 蜂鸣器 switch uid else cal 驱动程序 unsigned
原文地址：https://www.cnblogs.com/TheFly/p/11938697.html
