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#include "stc15.h"
#include "intrins.h"
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned long u32;
sbit LED=P3^0; //LED燈
sbit KEY_ZD=P3^2; //震動開關
sbit KEY_GL=P3^3; //鋼纜檢測
sbit KEY_SET=P3^4; //設置開關
u16 idata BUZ_count=0;
u16 idata key_count=0;
bit idata key_count_Flag=0;
u8 idata BUZ_Write_Go=1;
u16 idata T0_Starter=0xD5D0;
void Timer0_Init() //定時器0初始化函數
{
AUXR |= 0x80; //定時器時鐘1T模式
TMOD &= 0xF0; //設置定時器模式
TMOD &= ~0x04; //設置定時器內部時鐘輸出
TL0 = T0_Starter&0xff; //設置定時初值
TH0 = (T0_Starter>>8)&0xff; //設置定時初值 /360us/1.4khz
TR0 = 1; //定時器0開始計時
INT_CLKO |= 0X01; //使能定時器0的時鐘輸出功能（P3.5）
}
void Timer2_Init() //定時器2中斷初始化函數
{
AUXR |= 0x04; //定時器時鐘1T模式
T2L = 0x48; //設置定時初值
T2H = 0xF4; //設置定時初值 /100us
AUXR |= 0x10; //定時器2開始計時
IE2 |= 0x04; //打開定時器2中斷
EA =1;
}
void Init()
{
P3M1=0x00;
P3M0=0x20; //P3.5口推挽輸出
Timer0_Init(); //初始化定時器0，P3.5內部時鐘輸出
Timer2_Init(); //初始化定時器2,延時2MS
WKTCL = 30; //設置喚醒周期488us*（49+1）=24.4ms
WKTCH = 0X80; //打開掉電喚醒
LED=1; //LED燈
KEY_ZD=1; //震動開關
KEY_GL=1; //鋼纜檢測
KEY_SET=1; //設置開關
}
void Timer2_Routine() interrupt 12 //定時器2中斷
{
BUZ_count++;
if(key_count_Flag)
{
key_count++;
}
else
key_count=0;
}
void KEY_Scan()
{
static u8 idata KEY_Flag=0;
if(BUZ_Write_Go==0 && KEY_Flag==0 && KEY_SET==0)
{
key_count_Flag=1;
if(key_count>=500)
{
key_count_Flag=0;
if(KEY_SET==0)
{
BUZ_Write_Go=2;
KEY_Flag=1;
}
}
}
if(BUZ_Write_Go==0 && KEY_Flag==1 && KEY_ZD==0)
{
key_count_Flag=1;
if(key_count>=100 )
{
if(KEY_ZD==0)
{
key_count_Flag=0;
BUZ_Write_Go=3;
KEY_Flag=2;
}
}
}
if(BUZ_Write_Go==0 && KEY_Flag==2 && KEY_ZD==0)
{
key_count_Flag=1;
if(key_count>=100)
{
key_count_Flag=0;
if(KEY_ZD==0)
{
BUZ_Write_Go=4;
}
}
}
if(KEY_GL==0)
{
key_count_Flag=1;
if(key_count>=500)
{
key_count_Flag=0;
BUZ_Write_Go=4;
}
}
}
void Buz_Ser()
{
static u8 idata Num=0;
if(BUZ_Write_Go)
{
switch(BUZ_Write_Go)
{
case 1:
case 2:
{
switch(BUZ_count/20)
{
case 5: INT_CLKO |= 0X01;LED=0;break;
case 30:INT_CLKO &= 0xfe;LED=1;break;
case 35:BUZ_Write_Go=0;break;
}
}break;
case 3:
{
switch(BUZ_count/20)
{
case 5:
case 500:
case 1000:INT_CLKO |= 0X01;LED=0;break;
case 250:
case 750:
case 1250:INT_CLKO &= 0xfe;LED=1;break;
case 1253:BUZ_Write_Go=0;break;
}
}break;
case 4:
{
if(BUZ_count==90)
{
BUZ_count=0;
switch(Num)
{
case 0: T0_Starter=0xEB42;break;
case 1:
case 2:
case 3:
case 4:
case 5:
case 6: T0_Starter += 0x01A4;break;
case 7:
case 8:
case 9:
case 10:
case 11:T0_Starter -= 0x01A4;break;
}
INT_CLKO &= 0xFE; //關閉P3.5內部時鐘輸出
TR0 = 0; //定時器0關閉計時
TL0 = T0_Starter & 0xFF; //設置定時初值
TH0 = (T0_Starter>>8) & 0xFF; //設置定時初值
TR0 = 1; //定時器0開始計時
INT_CLKO |= 0X01; //打開P3.5內部時鐘輸出
if(Num==10) LED=~LED;
Num++;
Num %=12;
}
}break;
}
}
else
{
BUZ_count=0;
}
}
void Power_Down()
{
if(BUZ_Write_Go==0 && key_count_Flag==0)
{
_nop_();
_nop_();
_nop_();
PCON=0X02; //進入掉電模式
_nop_(); //重新上電后現執行此語句，再執行中斷
_nop_();
_nop_();
_nop_();
}
}
void main()
{
Init();
while(1)
{
Power_Down();
KEY_Scan(); //按鍵掃描
Buz_Ser(); //蜂鳴器服務
}
}

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