单片机16*16点阵LED显示滚动汉字含程序原理图74hc154+74hc595 -

/*-----------------------------------------------
名称：595控制4汉字点阵屏
51单片机
内容：屏+5V、GND连接电源5V
P0.0-P0.3分别连接A、B、C、D，用于控制16行，通过2路HC138控制
SCK时钟连接P2.5
LATCH锁存连接P2.6
R1红色数据信号连接至P2.4
G1绿色数据信号连接至P0.4，如果使用单红色屏此信号无需连接
OE使能端一般接GND，可以用IO引脚PWM控制亮度
或者使用此引脚控制拖尾现象。
现象：使用普通速度51系列单片机。
K1按下屏幕出现实体心型
K2按下屏幕出现笑脸图标
K3按下屏幕出现A8图标
K4按下屏幕出现陈文蓉邱莉杰
------------------------------------------------*/
#include<reg52.h>
sbit T_STR = P2^6; //锁存引脚，屏上标识位STR
sbit R1 = P2^4; //数据引脚，屏上标识R1
sbit G1 = P0^4; //数据引脚，屏上标识G1
sbit T_CLK = P2^5; //时钟引脚，屏上标识位CLK
sbit OE = P2^1; //
sbit K1 = P3^2; //
sbit K2 = P3^3; //
sbit K3 = P3^4; //
sbit K4 = P3^5; //
unsigned char tab[8];
unsigned char DIS[]={0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};//行数据
int oo=0;
static unsigned char count,j,kk;
/*-----------------------------------------------
16x16汉字取模数据
------------------------------------------------*/
unsigned char code hztest[][32]= //二维数组，目的是减少运算，可以用最基本的一维数组，每个汉字有32个字节数据
{
/*-- 文字: 学 --*/
/*-- 宋体12; 此字体下对应的点阵为：宽x高=16x16 --*/
0x44,0x10,0x88,0x10,0x88,0x08,0x00,0x04,0xFE,0x7F,0x02,0x40,0x01,0x20,0xF8,0x07,
0x00,0x02,0x80,0x21,0xFF,0x7F,0x80,0x00,0x80,0x00,0x80,0x00,0xA0,0x00,0x40,0x00,
};
unsigned char code hztest1[][32]= //二维数组，目的是减少运算，可以用最基本的一维数组，每个汉字有32个字节数据
{
/*-- 文字: 文 --*/
/*-- 宋体12; 此字体下对应的点阵为：宽x高=16x16 --*/
0x40,0x00,0x80,0x00,0x80,0x20,0xFF,0x7F,0x08,0x08,0x10,0x08,0x10,0x04,0x20,0x04,
0x20,0x02,0x40,0x01,0x80,0x00,0x40,0x01,0x20,0x06,0x10,0x08,0x0C,0x70,0x03,0x20,
/*-- 文字: 经 --*/
/*-- 宋体12; 此字体下对应的点阵为：宽x高=16x16 --*/
0x08,0x00,0xC8,0x3F,0x04,0x10,0x04,0x08,0x22,0x0C,0x3F,0x12,0x10,0x61,0xC8,0x40,
0x04,0x00,0x82,0x3F,0x3F,0x04,0x00,0x04,0x38,0x04,0x07,0x24,0xE2,0x7F,0x00,0x00,
/*-- 文字: 学 --*/
/*-- 宋体12; 此字体下对应的点阵为：宽x高=16x16 --*/
0x44,0x10,0x88,0x10,0x88,0x08,0x00,0x04,0xFE,0x7F,0x02,0x40,0x01,0x20,0xF8,0x07,
0x00,0x02,0x80,0x21,0xFF,0x7F,0x80,0x00,0x80,0x00,0x80,0x00,0xA0,0x00,0x40,0x00,
/*-- 文字: 院 --*/
/*-- 宋体12; 此字体下对应的点阵为：宽x高=16x16 --*/
0x00,0x01,0x1E,0x02,0xF2,0x7F,0x2A,0x40,0x1A,0x28,0xC6,0x1F,0x0A,0x00,0x12,0x10,
0xF2,0x3F,0x12,0x05,0x16,0x05,0x0A,0x05,0x82,0x44,0x82,0x44,0x42,0x78,0x32,0x00,
/*-- 文字: 一 --*/
/*-- 宋体12; 此字体下对应的点阵为：宽x高=16x16 --*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFC,0x3F,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
/*-- 文字: 尚 --*/
/*-- 宋体12; 此字体下对应的点阵为：宽x高=16x16 --*/
0x80,0x00,0x84,0x10,0x98,0x18,0x90,0x04,0x80,0x20,0xFE,0x7F,0x02,0x20,0x02,0x24,
0xF2,0x2F,0x12,0x24,0x12,0x24,0x12,0x24,0xF2,0x27,0x12,0x24,0x02,0x28,0x02,0x10,
/*-- 文字: 衍 --*/
/*-- 宋体12; 此字体下对应的点阵为：宽x高=16x16 --*/
0x08,0x10,0x28,0x3E,0xC4,0x00,0x82,0x00,0x01,0x00,0x28,0x20,0xC4,0x7E,0x86,0x10,
0x05,0x10,0x84,0x10,0x44,0x10,0x74,0x10,0x44,0x10,0x44,0x10,0x44,0x14,0x44,0x08,
/*-- 文字: 旭 --*/
/*-- 宋体12; 此字体下对应的点阵为：宽x高=16x16 --*/
0x08,0x00,0x08,0x10,0x08,0x3F,0x08,0x11,0x7F,0x11,0x48,0x11,0x48,0x11,0x48,0x1F,
0x48,0x11,0x48,0x11,0x48,0x11,0x48,0x11,0x44,0x5F,0x44,0x40,0x82,0x7F,0x01,0x00,
};
unsigned char code hztest2[][32]= //二维数组，目的是减少运算，可以用最基本的一维数组，每个汉字有32个字节数据
{
/*-- 文字: 欢 --*/
/*-- 宋体12; 此字体下对应的点阵为：宽x高=16x16 --*/
0x00,0x01,0x00,0x01,0x3F,0x01,0x20,0x3F,0xA2,0x20,0x62,0x12,0x14,0x02,0x14,0x02,
0x08,0x02,0x14,0x02,0x24,0x05,0x22,0x05,0x81,0x08,0x80,0x10,0x40,0x70,0x30,0x20,
/*-- 文字: 迎 --*/
/*-- 宋体12; 此字体下对应的点阵为：宽x高=16x16 --*/
0x00,0x00,0x82,0x21,0x64,0x7E,0x28,0x22,0x20,0x22,0x20,0x22,0x2F,0x22,0x28,0x23,
0xA8,0x22,0x68,0x2A,0x28,0x12,0x08,0x02,0x08,0x02,0x14,0x62,0xE2,0x3F,0x00,0x00,
/*-- 文字: 您 --*/
/*-- 宋体12; 此字体下对应的点阵为：宽x高=16x16 --*/
0x90,0x00,0x90,0x00,0xC8,0x3F,0x48,0x20,0x2C,0x12,0x9A,0x02,0x89,0x0A,0x48,0x32,
0x28,0x22,0x88,0x02,0x08,0x01,0x40,0x00,0x8A,0x21,0x0A,0x49,0x09,0x48,0xF0,0x0F
};
/*-----------------------------------------------
向595写入一个字节单红色
------------------------------------------------*/
void InputByte( unsigned char DataR1) //写一个字节
{
unsigned char i;
for(i=8; i>0; i--)
{
R1 = !(DataR1&0x01);
T_CLK = 0;
T_CLK = 1;
DataR1 = DataR1 >> 1;
}
}
/*-----------------------------------------------
向595写入两个字节双色
------------------------------------------------*/
void Input2Byte( unsigned char DataR1,unsigned char DataG1) //写一个字节
{
unsigned char i;
for(i=8; i>0; i--)
{
R1 = !(DataR1&0x01);
G1 = !(DataG1&0x01);
T_CLK = 0;
T_CLK = 1;
DataR1 = DataR1 >> 1;
DataG1 = DataG1 >> 1;
}
}
/*-----------------------------------------------
初始化定时器，做为动态扫描
------------------------------------------------*/
void Init_Timer1(void)
{
TMOD |= 0x10;
EA=1; //总中断使能
ET1=1; //定时中断使能
TR1=1; //打开定时器开关
}
/*-----------------------------------------------
主程序
------------------------------------------------*/
main()
{
unsigned char l=0;
Init_Timer1(); //初始化定时器
while(1)
{
//可以加入其它的控制程序
if(K1==0) oo=0;
if(K2==0) oo=1,kk=0;
if(K3==0) oo=2,j=0;
l++;
if(l==250) j++,l=0,kk+=2; //l 速度控制
if(j==9) j=0;
if(kk==255) kk=0;
}
}
/*-----------------------------------------------
定时器执行动态扫描
------------------------------------------------*/
void Timer1_isr(void) interrupt 3
{
unsigned char i;
TH1=0xff; //重装初值
TL1=0;
T_STR=0; //锁存释放
switch(oo)
{
case 0: {
InputByte(hztest[0][i]);
InputByte(hztest[0][i+1]);
}
break;
case 1: {
InputByte(hztest1[0][i+kk]);
InputByte(hztest1[0][i+kk+1]);
}
break;
case 2: {
InputByte(hztest2[j/3][i]);
InputByte(hztest2[j/3][i+1]);
}
break;
}
OE=1; //暂时关闭屏幕，防止出现鬼影，如果没有使用该引脚控制则会出现拖影现象。
T_STR=1; //锁存有效，此时一行的数据显示到屏上
P0=DIS[count]|0xf0;//用P0口的前4位控制16行，屏内部通过4-16译码器工作，循环扫描其他15行
OE=0;//使能
count++;
i+=2; //累加调用下一行数据
if(count==16)
count=0;
if(i==32)
i=0;
}

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