?? display_s.h
字號:
#ifndef _display_
#define _display_
#include <intrins.h>
sbit SDA=P1^0;
sbit CLK=P1^1;
unsigned char code led[20]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e,0xbf,0x89,0x8C};
unsigned char data display_bit;
void delay(unsigned int k)
{ unsigned int i,j;
for(i=0;i<k;i++)
for(j=0;j<100;j++);
}
void send(unsigned char a)
{
unsigned char i;
for(i=0;i<8;i++)
{
if(_crol_(a,i)&0x80)
SDA=1;
else
SDA=0;
CLK=0;
CLK=1;
}
}
void display(unsigned char display_buffer[5])
{
unsigned char i,k;
display_bit=0x7f;
for(i=0;i<5;i++)
{
k=led[display_buffer[i]];
send(k);
P1=display_bit;
delay(0x01);
P1=0xff;
display_bit=_cror_(display_bit,1);
}
display_bit=0x7f;
}
#endif
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