跑馬燈一次亮3燈來回

ID:159397 · 發(fā)表于 2017-1-2 16:33

跑馬燈一次亮3燈來回

求代碼

ID:159397 · 發(fā)表于 2017-1-2 16:52

//跑馬燈
void pmd(unsigned int s)
{
unsigned char i;

P0 = 0xFF;
P1 = ~((0x01 << 5));
P2 = 0xFF;

for(i = 2 ; i < 4 ; i++)
{
      P1 = ~(0x01 << (5 - i)) + (0x01 << 5);
   delay(s);
}
P1 = ~((0x01 << 5));


for(i = 0 ; i < 8 ; i++)
{
      P2 = ~(0x01 << (7 - i));
      delay(s);
}
P2 = 0xFF;
for(i = 0 ; i < 8 ; i++)
{
      P0 = ~(0x01 << ( 7- i));
      delay(s);
}
P0 = 0xFF;
for(i = 0 ; i < 2 ; i++)
{
      P1 = ~((0x01 << (1 - i)) + (0x01 << 5));
   delay(s);
}    }

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