74HC595驱动LED点阵输出汉字 -

标题: 74HC595驱动LED点阵输出汉字 [打印本页]

作者: wu2068 时间: 2015-7-15 14:00
标题: 74HC595驱动LED点阵输出汉字
#include <reg51.h>

typedef unsigned char uchar;

sbit SDI=P3^4;
sbit LCK=P3^5;
sbit SCK=P3^6;

uchar code table1[]={128,0,128,0,252,31,132,16,132,16,132,16,132,16,132,16,252,31,132,16,128,0,128,0,128,0,128,0,0,0,0,0};

uchar code table0[]={0x00,0x01,0x00,0x02,0x00,0x04,0x00,0x08,0x00,0x10,0x00,0x20,0x00,0x40,0x00,0x80,
                  0x01,0x00,0x02,0x00,0x04,0x00,0x08,0x00,0x10,0x00,0x20,0x00,0x40,0x00,0x80,0x00};

void HC595SendData(uchar dt3,uchar dt2,uchar dt1,uchar dt0);

void main(void)
{
int j,n;
while(1)
{
for(j=0;j<100;j++)
{
for(n=0;n<16;n++)
{

HC595SendData(~table1[2*n+1],~table1[2*n],table0[2*n],table0[2*n+1]);

}
}
}
}
void HC595SendData(uchar dt3,uchar dt2,uchar dt1,uchar dt0)
{
int i;

for(i=0;i<8;i++)
{
SDI=dt3>>7;
dt3=dt3<<1;
SCK=0;
SCK=1;
}

for(i=0;i<8;i++)
{
SDI=dt2>>7;
dt2=dt2<<1;
SCK=0;
SCK=1;
}

for(i=0;i<8;i++)
{
SDI=dt1>>7;
dt1=dt1<<1;
SCK=0;
SCK=1;
}

for(i=0;i<8;i++)
{
SDI=dt0>>7;
dt0=dt0<<1;
SCK=0;
SCK=1;
}

LCK=0;
LCK=1;
LCK=0;

作者: admin 时间: 2015-7-15 15:52
楼主你好能上传个电路图吗有积分赠送

作者: dianzi8266 时间: 2017-2-17 14:46
电路连接有吗

作者: thead 时间: 2017-6-16 15:28
没有电路图，不知道代码为什么这样写

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