?? 數碼管.c
字號:
//Seven segment display,Common cathode number 0~9
unsigned char _pac @ 0x13;
unsigned char _pa @ 0x12;
#define _pa7 _12_7
const unsigned char pattern[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
void delay(){unsigned long i; for(i=0;i<5000;i++);}
void main()
{
while(1)
{
unsigned int j;
_pac = 0x00;
j=0;
while(1)
{ _pa = pattern[j];
delay();
j++;
if(j>=10)j=0;
}
}
}
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