STC小程序出现问题，请帮助

只看该作者 · 2017-9-2 15:48

#include "reg51.h"
#include "intrins.h"
typedef unsigned int uint16;

sfr P3M1 = 0x93;
sfr P3M0 = 0x94;
sfr AUXR = 0x8e;

sbit MCU_ONKEY_L=P3^4;
sbit MCU_RUN_LED=P3^3;
sbit RESET=P3^5;
sbit TK1_TEST=P3^2;
uint16 flag=0;
uint16 low_power=0;

//ÆµÂÊ11.0592MHz
void Delay10ms() //@11.0592MHz
{
unsigned char i, j;

_nop_();
_nop_();
i = 108;
j = 144;
do
{
while (--j);
} while (--i);
}
void Timer0Init(void) //10ms@11.0592MHz
{
AUXR &= 0x7F; //?????12T??
TMOD &= 0xF0; //???????
TL0 = 0x00; //??????
TH0 = 0xDC; //??????
TF0 = 0; //??TF0??
// TR0 = 1; //???0????
flag++;
if(flag==200)
{
flag=0;
}
}

void exint0() interrupt 0    //中断路口
{
TR0 = 1; //Ê¹ÄÜ¶¨Ê±Æ÷
   low_power++;
}
void init()
{
   P3M0 = 0x00;//³õÊ¼»¯IO¿Ú
P3M1 = 0x00;
   MCU_ONKEY_L=0;
MCU_RUN_LED=1;
RESET=0;

   INT0 = 1;
IT0 = 0;                   //ÉèÖÃÖÐ¶ÏÀàÐÍ
EX0 = 1;                   //Ê¹ÄÜÖÐ¶Ï
EA = 1;

}

void main(void)
{
Delay10ms();
Timer0Init();
init();
MCU_ONKEY_L=1;//ÉÏµç¸ø10msµÄ¸ß
Delay10ms();
MCU_ONKEY_L=0;
  while(1)
  {
if(low_power==2)//检测2个低电平
   {
TR0 = 0;
low_power=1;
if(flag<100)
{
MCU_RUN_LED=0;//³ÌÐòÕý³£
flag=0;
RESET=0;
}
   if(flag>100)
   {
MCU_RUN_LED=1;
RESET=1;//重启
   }
   }
}
}