#include

#include

sbit SRCLK=P3^6;

sbit RCLK=P3^5;

sbit SER=P3^4;

//--定义要使用的IO口--//

#define COMMONPORTS                P0

//--列选通控制--//

unsigned char code TAB[8]  = {0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe};

//--点阵字码--//

unsigned char code CHARCODE[18][8]=

{

{0x00,0x00,0x3e,0x41,0x41,0x41,0x3e,0x00}, //0

{0x00,0x00,0x00,0x00,0x21,0x7f,0x01,0x00}, //1

{0x00,0x00,0x27,0x45,0x45,0x45,0x39,0x00}, //2

{0x00,0x00,0x22,0x49,0x49,0x49,0x36,0x00}, //3

{0x00,0x00,0x0c,0x14,0x24,0x7f,0x04,0x00}, //4

{0x00,0x00,0x72,0x51,0x51,0x51,0x4e,0x00}, //5

{0x00,0x00,0x3e,0x49,0x49,0x49,0x26,0x00}, //6

{0x00,0x00,0x40,0x40,0x40,0x4f,0x70,0x00}, //7

{0x00,0x00,0x36,0x49,0x49,0x49,0x36,0x00}, //8

{0x00,0x00,0x32,0x49,0x49,0x49,0x3e,0x00}, //9

{0x00,0x00,0x7F,0x48,0x48,0x30,0x00,0x00}, //P

{0x00,0x00,0x7F,0x48,0x4C,0x73,0x00,0x00}, //R

{0x00,0x00,0x7F,0x49,0x49,0x49,0x00,0x00}, //E

{0x00,0x00,0x3E,0x41,0x41,0x62,0x00,0x00}, //C

{0x00,0x00,0x7F,0x08,0x08,0x7F,0x00,0x00}, //H

{0x00,0x00,0x00,0xFF,0xFF,0x00,0x00,0x00}, //I

{0x00,0x7F,0x10,0x08,0x04,0x7F,0x00,0x00}, //N

{0x7C,0x48,0x48,0xFF,0x48,0x48,0x7C,0x00}  //中

};

void delay(unsigned int time)

{

unsigned int i,j;

for(i=0;i

for(j=0;j<121;j++);

}

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

* 函数名         : Hc595SendByte(unsigned char dat)

* 函数功能                   : 想74H595发送一个字节的数据

* 输入           : 无

* 输出                  : 无

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

void Hc595SendByte(unsigned char dat)

{

unsigned char a;

SRCLK=0;

RCLK=0;

for(a=0;a<8;a++)

{

SER=dat>>7;

dat<<=1;

SRCLK=1;

_nop_();

_nop_();

SRCLK=0;

}

RCLK=1;

_nop_();

_nop_();

RCLK=0;

}

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

* 函数名         : main

* 函数功能                   : 主函数

* 输入           : 无

* 输出                  : 无

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

void main()

{

unsigned char tab, j;

unsigned int  i;

while(1)

{

for(i= 0; i<50; i++ )   //两个字之间的扫描间隔时间

{

for(tab=0;tab<8;tab++)

{

Hc595SendByte(0x00);                             //消隐

COMMONPORTS        = TAB[tab];                                 //输出字码

Hc595SendByte(CHARCODE[j][tab]);

delay(2);

}

}

j++;

if(j == 18)

{

j = 0;

}

}

}