c语言点阵字体位置,51单片机，点阵显示汉字（C语言）

//要用到 _nop_()

#define uint unsigned int

#define uchar unsigned char

sbit SH_595=P2^1;

sbit DATA_595=P2^0;

sbit ST_CP_595=P2^2;//74HC595(12)-ST_CP上升沿-移位寄存器的数据进入数据存储寄存器 输出锁存器的时钟信号端口

sbit MR_595=P2^3; //74HC595(10)-MR 为0将移位寄存器的数据清0

sbit E1_154=P2^4;//74HC154(18)-E1为0开列(col)输出 显示允许   控制信号端口

uchar keynum;

uchar tempbmp[64];

uint base=0;  //在bmp地址中移动，从0 到 rows - 15,每次加2，实现移动效果

uint tmp=0;

uint col=0;

unsigned char code bmp1[]={    //字模表

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

0x00,0x08,0x00,0x08,0x1F,0xC8,0x92,0x48,0x52,0x48,0x32,0x48,0x12,0x48,0x1F,0xFF,

0x12,0x48,0x32,0x48,0x52,0x48,0x92,0x48,0x1F,0xC8,0x00,0x08,0x00,0x08,0x00,0x00,/*"单",0*/

0x00,0x00,0x00,0x01,0x00,0x06,0x7F,0xF8,0x04,0x40,0x04,0x40,0x04,0x40,0x04,0x40,

0x04,0x40,0xFC,0x40,0x04,0x7F,0x04,0x00,0x04,0x00,0x04,0x00,0x00,0x00,0x00,0x00,/*"片",1*/

0x08,0x20,0x08,0xC0,0x0B,0x00,0xFF,0xFF,0x09,0x00,0x08,0xC1,0x00,0x06,0x7F,0xF8,

0x40,0x00,0x40,0x00,0x40,0x00,0x7F,0xFC,0x00,0x02,0x00,0x02,0x00,0x1E,0x00,0x00,/*"机",2*/

0x02,0x00,0x02,0x00,0x42,0x00,0x33,0xFC,0x00,0x09,0x02,0x11,0x05,0x02,0x79,0xC2,

0x41,0x34,0x41,0x08,0x41,0x14,0x79,0x62,0x05,0x82,0x04,0x01,0x04,0x01,0x00,0x00,/*"设",3*/

0x02,0x00,0x02,0x00,0x42,0x00,0x33,0xFE,0x00,0x04,0x02,0x08,0x02,0x00,0x02,0x00,

0x02,0x00,0xFF,0xFF,0x02,0x00,0x02,0x00,0x02,0x00,0x02,0x00,0x02,0x00,0x00,0x00,/*"计",4*/

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

};

void delayXms(uchar ms)               // 延时毫秒@12M,ms最大值255

{

uchar i;

while(ms--)

for(i = 0;i<10;i++);

}

void SendByte(uchar a) //

{

uchar byte,i;

byte=a;

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

{

SH_595=0;

if(byte&0X80)

DATA_595=1;

else

DATA_595=0;

SH_595=1;

byte<<=1;

}

}

void sendbmp(uchar *bmp,uint rows)

{

for(base=0;base<=rows-64;base=base+2)// 左移动

{

for(tmp=0;tmp<5;tmp++) //每个字块显示5次

{

for(col=0;col<16;col++)

{

E1_154=0;                   //为0，允许显示

MR_595=0;                //清理行输出，将移位寄存器的数据清0

MR_595=1;

ST_CP_595=0;            //上升沿

ST_CP_595=1;

//    base=64;

SendByte(bmp[base+col*2]);        // 实际上595是输出    行数据分为第一个字上半屏，下半屏 第二个字上下半屏

SendByte(bmp[base+col*2+1]);

P1=col;                //列控制

ST_CP_595=0;        //上升沿

ST_CP_595=1;

delayXms(7);        //显示2ms

}

}

}

}

void main()

{

//列选线

MR_595=1;

E1_154=1;

while(1)

{

sendbmp(&bmp1,sizeof(bmp1));//显示第2次字

}

}