text1.c

用单片机控制max7219做的led灯的动态显示

#include<reg51.h>
unsigned int a,b=0,c=0;
unsigned char code list[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x67};
unsigned char data disp[]={0,7,4,4,2,0,1,2};


void display(unsigned char d,e)
{
P2=d;
P0=list[disp[e]];
}

main()
{
while(1)
{
b++; if(b>7) b=0;

c++; if(c>7) c=0;

display(b,c);

for(a=0;a<50000;a++);
}
}