51单片机 8x8点阵显示程序参考.doc

本程序用的是51单片机控制8*8点阵显示I（心形）U#include#define uint unsigned int#define uchar unsigned char/使用的IO口要根据自己接在单片机里的情况来更改sbit RCK = P36;/声明串行输出存储锁存线RCKsbit SCK = P35;/声明串行数据输入时钟线SCKsbit SER = P34;/声明串行数据输入线SERsbit HC = P00;/声明C信号接口sbit HB = P01;/声明B信号接口sbit HA = P02;/声明A信号接口#define ROW1 HC = 0; HB = 0; HA = 0; /定义使能第1行#define ROW2 HC = 0; HB = 0; HA = 1; /定义使能第2行#define ROW3 HC = 0; HB = 1; HA = 0; /定义使能第3行#define ROW4 HC = 0; HB = 1; HA = 1; /定义使能第4行#define ROW5 HC = 1; HB = 0; HA = 0; /定义使能第5行#define ROW6 HC = 1; HB = 0; HA = 1; /定义使能第6行#define ROW7 HC = 1; HB = 1; HA = 0; /定义使能第7行#define ROW8 HC = 1; HB = 1; HA = 1; /定义使能第8行uchar h;/显示数据，可以用取模软件来获取uchar iloveu = 0x00,0x3C,0x18,0x18,0x18,0x18,0x3C,0x00,0x00,0x36,0x7F,0x7F,0x3E,0x1C,0x08,0x00,0x00,0x22,0x22,0x22,0x22,0x22,0x1C,0x00,0x10,0x30,0x10,0x10,0x10,0x10,0x38,0x00,0x7C,0x08,0x10,0x08,0x04,0x44,0x38,0x00,0x10,0x30,0x10,0x10,0x10,0x10,0x38,0x00,0x08,0x18,0x28,0x48,0x7C,0x08,0x08,0x00;void delay(uint z) /延时函数，单位ms uint i, j; for(i = z; i 0; i-) for(j = 110; j 0; j-); void ROW() /行驱动函数switch(h)case 0: ROW1;break;case 1: ROW2;break;case 2: ROW3;break;case 3: ROW4;break;case 4: ROW5;break;case 5: ROW6;break;case 6: ROW7;break;case 7: ROW8;break;RCK = 1; /595输出存储器锁存移位寄存器中的状态值RCK = 0; /595输出存储器状态保持void in_data(uchar n)/数据打入74HC595函数uchar x,y;y = n;for(x = 8; x 0; x-)if(y&0x01) /特别注意先打入的是高位对应第8列，最后打入低位对应第1列SER = 1;elseSER = 0;y = y1; /对应先高位后对位应往右移位数据SCK = 0; /时钟接低，准备下一次读取数据SCK = 1; /595芯片读取数据void main(void) uchar m, in56, n; RCK = 0; /清零锁存线SCK = 0; /清零时钟线for(h = 0; h 0; m-)for(h = 0; h 8; h+)in_data(inh);ROW();delay(1); /左移for(h = 0; h 8; h+)if(inh&0x80)m = 1;/预先保存第一位数据elsem = 0;for(n = 0; n 6; n+)if(inh+8*n+8&0x80)/没有改变inh+8的值inh+8*n = (inh+8*n1) +