电路图如下：

程序如下：

#include

unsigned char code fseg[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};

unsigned char code segbit[]={0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01};

unsigned char disbuf[8]={0,0,0,0,0,0,0,0};

//-----------------------------------------------------------------------------

// 函数原形定义

#define uchar unsigned char

void main (void); // 主函数

void LED4_Display (void); // LED显示

void LED_OUT(uchar X); // LED单字节串行移位函数

unsigned char code LED_0F[]; // LED字模表

sbit DIO = P1^0; //串行数据输入

sbit RCLK = P1^1; //时钟脉冲信号——上升沿有效

sbit SCLK = P1^2; //打入信号————上升沿有效

//-----------------------------------------------------------------------------

// 全局变量

uchar LED[8]; //用于LED的8位显示缓存

//*****************************************************************************

// 主程序

//

void main (void)

{

LED[0]=1;

LED[1]=2;

LED[2]=3;

LED[3]=4;

LED[4]=5;

LED[5]=6;

LED[6]=7;

LED[7]=8;

while(1)

{

LED4_Display ();

}

}

void LED4_Display (void)

{

unsigned char code *led_table; // 查表指针

uchar i;

//显示第1位

led_table = LED_0F + LED[0];

i = *led_table;

LED_OUT(i);

LED_OUT(0x01);

RCLK = 0;

RCLK = 1;

//显示第2位

led_table = LED_0F + LED[1];

i = *led_table;

LED_OUT(i);

LED_OUT(0x02);

RCLK = 0;

RCLK = 1;

//显示第3位

led_table = LED_0F + LED[2];

i = *led_table;

LED_OUT(i);

LED_OUT(0x04);

RCLK = 0;

RCLK = 1;

//显示第4位

led_table = LED_0F + LED[3];

i = *led_table;

LED_OUT(i);

LED_OUT(0x08);

RCLK = 0;

RCLK = 1;

//显示第5位

led_table = LED_0F + LED[4];

i = *led_table;

LED_OUT(i);

LED_OUT(0x10);

RCLK = 0;

RCLK = 1;

//显示第6位

led_table = LED_0F + LED[5];

i = *led_table;

LED_OUT(i);

LED_OUT(0x20);

RCLK = 0;

RCLK = 1;

//显示第7位

led_table = LED_0F + LED[6];

i = *led_table;

LED_OUT(i);

LED_OUT(0x40);

RCLK = 0;

RCLK = 1;

//显示第8位

led_table = LED_0F + LED[7];

i = *led_table;

LED_OUT(i);

LED_OUT(0x80);

RCLK = 0;

RCLK = 1;

}

void LED_OUT(uchar X)

{

uchar i;

for(i=8;i>=1;i--)

{

if (X&0x80) DIO=1; else DIO=0;

X<<=1;

SCLK = 0;

SCLK = 1;

}

}

unsigned char code LED_0F[] =

{// 0 1 2 3 4 5 6 7 8 9 A b C d E F -

0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0x8C,0xBF,0xC6,0xA1,0x86,0xFF,0xbf

};