郭天祥52單片機
設置 P1口第一個二極管燈的中斷。為什么P3.2口接地后不執行中斷呢？？各位大神能幫下忙嗎？
#include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
sbit dula=P2^6;
sbit wela=P2^7;
sbit d1=P1^0;
uchar num;
uchar code table[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};
void delay(uint z);
void main()
{
EA=1;//?????ж?
EX0=1;//?????ж?0
//IT0=1;
TCON=0x01;
wela=1;//11101010
P0=0xea;
wela=0;
while(1)
{
for(num=0;num<16;num++)
{
d1=1;
dula=1;
P0=table[num];
dula=0;
delay(1000);
}
}
}
void delay(uint z)
{file:///C:/Users/付/Documents/Tencent%20Files/1256409389/Image/C2C/AF83C490B1F990BA7A0D21EFD2583A7E.png
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void exter0() interrupt 0
{
d1=0;
}
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