日志
數(shù)碼管動(dòng)態(tài)顯示
#include <reg51.h>
//LCD的口線
sbit E=P3^5;
sbit RW=P3^6;
sbit RS=P3^7;
//8字LED的連接方法
//P0.7 P.06 P0.5 P0.4 P0.3 P0.2 P0.1 P0.0
// H G F E D C B A
unsigned char code ledcode[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,
0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e}; //數(shù)碼管段碼表
void Delay_ms(unsigned int t); //延時(shí) t秒鐘 ：fosc=12MHz
void main(void)
{
unsigned char led12,led34,led56;
E=0; //取消LCD對(duì)LED的影響
RW=0;
RS=1;
led12=0x12;
led34=0x34;
led56=0x56;
while(1)
{
P2=0xff; //關(guān)顯示
P0=ledcode[(led12>>4)&0x0f];
P2=0xfe;
Delay_ms(1);
P2=0xff;
P0=ledcode[led12&0x0f];
P2=0xfd;
Delay_ms(1);
P2=0xff; //關(guān)顯示
P0=ledcode[(led34>>4)&0x0f];
P2=0xfb;
Delay_ms(1);
P2=0xff;
P0=ledcode[led34&0x0f];
P2=0xf7;
Delay_ms(1);
P2=0xff; //關(guān)顯示
P0=ledcode[(led56>>4)&0x0f];
P2=0xef;
Delay_ms(1);
P2=0xff;
P0=ledcode[led56&0x0f];
P2=0xdf;
Delay_ms(1);
}
}
void Delay_ms(unsigned int t) //Delay t ms for 12MHz crystal
{unsigned char i;
while(t--)
{for(i=0;i<125;i++);
}
}
