main.c

来自「十几个proteus的仿真实例」· C语言 代码 · 共 24 行

#include <AT89X52.H>
unsigned char code chl[20]={
0xe0,0xe1,0xe2,0xe3,0xe4,0xe9,0xe6,0xe7,0xe8,0xe9,
0xd0,0xd1,0xd2,0xd3,0xd4,0xd5,0xd6,0xd7,0xd8,0xd9
};
unsigned char curchl=0;
void int0(void) interrupt 0 using 1
{unsigned int i;
 for(i=0;i<33000;i++)
   ; 
 curchl++;
 if(curchl>19)
 curchl=0;
}
main()
{
 EX0=1;
 EA=1;
 while(1)
{
 P2=chl[curchl];
 }
}