led动态闪现c言语
led动态闪现c言语
用c言语编写的 51单片机数码管驱动程序 下面是电路图:
#include
#define uint unsigned int
void delay7ms(void) //过失 -0.217013888891us
{
unsigned char a,b;
for(b=208;b>0;b--)
for(a=14;a>0;a--);
}
void delay2ms(void) //过失 -0.217013888889us
{
unsigned char a,b;
for(b=80;b>0;b--)
for(a=10;a>0;a--);
}
void main(void)
{
uint led[10]={0xc0,0xf9,0xa4, 0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
uint m,n=0,a=0;
for(m=0;m
P0=led[m];
P2=0x40;
delay7ms();
P2=0x00;
delay2ms();
P0=led[n];
P2=0x80;
delay7ms();
P2=0x00;
delay2ms();
a++;
}
a=0;
}
}
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