#include "reg52.h"
unsigned char code SMG_duanma[18]=
{0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,
0x80,0x90,0x88,0x80,0xc6,0xc0,0x86,0x8e,
0xbf,0x7f};
void Delay(unsigned int t)
{
while(t--);
while(t--);
}
void InitHC138(unsigned char n)
{
switch(n)
{
case 4:
P2 = (P2 & 0x1f) | 0x80;
break;
case 5:
P2 = (P2 & 0x1f) | 0xa0;
break;
case 6:
P2 = (P2 & 0x1f) | 0xc0;
break;
case 7:
P2 = (P2 & 0x1f) | 0xe0;
break;
}
}
void ShowSMG_Bit(unsigned char dat, unsigned pos)
{
InitHC138(6); //数码管的位置
P0 = 0x01 << pos;
InitHC138(7); //数码管的内容
P0 = dat;
}
void SMG_Static()
{
unsigned char i,j;
for(i = 0; i < 8; i++)
{
for(j = 0; j < 10; j++)
{
ShowSMG_Bit(SMG_duanma[j],i);
Delay(60000);
}
}
for(j = 0; j < 16; j++)
{
InitHC138(6); //数码管的位置
P0 = 0xff;
InitHC138(7); //数码管的内容
P0 = SMG_duanma[j];
Delay(60000);
Delay(60000);
}
}
void main()
{
while(1)
{
SMG_Static();
}
}
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