多显示器编程

开发平台：

C/C++

LED16x32_595.c：源码内容

							//2005-8-10
//移位寄存器用74LS595
#include <at89x51.h>
#define SCK		P0_0
#define SCLR 	P0_1
#define RCK		P0_2
#define OEN		P0_3
#define SER		P0_4
unsigned char code table_zhu[]={
0xF7,0xBF,0x77,0xBB,0xAC,0x0B,0xDF,0xB7,
0xAF,0xAF,0x68,0x01,0xF7,0xBF,0xE7,0x7F,
0xD6,0x03,0xB4,0xFB,0x72,0xFB,0xF6,0x03,
0xF6,0xFB,0xEE,0xFB,0xAE,0x03,0xDE,0xFB};/*"猪",0*/
unsigned char code table_tou[]={
0xFF,0x7F,0xEF,0x7F,0xF3,0x7F,0xFB,0x7F,
0xEF,0x7F,0xF3,0x7F,0xF7,0x7F,0xFF,0x7F,
0x00,0x01,0xFF,0x7F,0xFE,0xBF,0xFD,0xDF,
0xFB,0xCF,0xF7,0xE7,0xEF,0xF3,0xDF,0xF7};/*"头",1*/
void display(unsigned char);
void delay1ms(void);
void main (void)
{
	unsigned char i;
	while (1)
	{
		for(i=0;i<16;i++)
		{
			P2=0x00+i;
			OEN=1;
			SCLR=0;
			SCLR=1;
			display(table_tou[2*i+1]);
			display(table_tou[2*i]);
			display(table_zhu[2*i+1]);
			display(table_zhu[2*i]);
			RCK=0;
			RCK=1;
			OEN=0;
			delay1ms();
		}
	}
}
void display(unsigned char dispcode)
{
	unsigned char i;
	unsigned char temp;
	for (i=0;i<8;i++)
	{
		temp=dispcode&0x80;//一定要用变量代换；
		if (temp==0x80)
		{
			SER=1;
		}
		else
		{
			SER=0;
		}
		SCK=0;
		SCK=1;
		dispcode=dispcode<<1;//dispcode移位，不是temp移位；
	}
}
void delay1ms(void)
{
	unsigned char j,k;
//	for(i=20;i>0;i--)
		for(j=2;j>0;j--)
			for(k=248;k>0;k--);
}

						