标题: 关于外部中断0的低电平触发 [打印本页]

作者: zxq0716    时间: 2013-4-21 10:34
标题: 关于外部中断0的低电平触发
当我把GND用杜邦线和P3^2连起来时,为什么还在执行主程序 只是显示数字的间隔变慢了 # include sbit led=P1^0; sbit dula=P2^6; sbit wela=P2^7; unsigned char t,num; unsigned char code table[] = {0x3f,0x06,0x5b,0x4f, 0x66,0x6d,0x7d,0x07, 0x7f,0x6f,0x77,0x7c, 0x39,0x5e,0x79,0x71}; void delay(unsigned int z) { unsigned int x,y; for(x=z;x>0;x--) for(y=100;y>0;y--); } void main() { EA=1;//开总中断 EX0=1; while(1) { for(num=0;num<16;num++) //让数码管显示0到F { led="1; dula=1; P0=table[num]; dula=0; wela=1; P0=0xc0; wela=0; delay(200); } " } } void exter0() interrupt 0 { led="0; }"
[此贴子已经被作者于2013-4-21 10:38:14编辑过]

作者: zxq0716    时间: 2013-4-21 10:39
这咋发成一堆了,晕




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