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数显-双锁存(数显共阴,段 与 位共用 端口P0口)
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/***************************************************
* 2数显-双锁存(数显共阴,段 与 位共用 端口P0口) *
***************************************************/
#include
#define uchar unsigned char
#define uint unsigned int
sbit led1=P1^0;
sbit dula=P2^6;
sbit wela=P2^7;
uint num;
uchar code table[]={
0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
void delayms(uint x)
{
uchar i;
while(x--)for(i=110;i>0;i--);
}
void main()
{
wela=1;
P0=0xc0;wela=0;
while(1)
{
for(num=0;num<16;num++)
{
dula=1;
P0=table[num];
dula=0;
P0=0xff;
wela=1;
P0=0xf0;
wela=0;
delayms(500);
}
}
}
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