点阵显示设计说明书.docx

浙江机电职业技术学院LED点阵显示设计说明书圆方140116黄晨波2015年7月2号II摘 要随着时代的发展变迁，人们在对于LED的显示有了更多的显示方式，玩出了更多的花样。如今，大多数显示多在LCD液晶和和其他显示元件中实现人们的理想效果。当然，归于最初是LED显示。目 录一、系统设计概述1二、电路设计分析11、单片机最小系统板（核心）12、驱动电路23、LED点阵34、LED点阵显示整体电路35、LED点阵电路元件清单4三、流程框图5四、程序调试5总结8一、系统设计概述本系统要求使用8X8 LCD点阵，利用单片机最小系统板显示不同的字符串。如图1所示为系统控制框图。图1 系统控制框图二、电路设计分析1、单片机最小系统板（核心）实现所编程序功能，在LED点阵上显示理想实验效果。如图2所示为单片机最小系统板。图2 单片机最小系统板2、驱动电路驱动8X8 LED点阵正常工作的电路，包括芯片74573。如图3所示为驱动电路。图3 驱动电路3、LED点阵如图4所示为LED点阵显示电路管脚图。图4 LED点阵显示电路管脚图4、LED点阵显示整体电路如图5所示为LED点阵整体电路原理图。图5 LED点阵整体电路原理图5、LED点阵电路元件清单电路元件如表1所示。表1 电路元件清单原件名称型号备注单片机最小系统板STC89C52一个晶振12MHz一个普通电容30pF两个电解电容22uF一个电阻10K一个排阻100排阻8X10K驱动芯片74573一个LED点阵8X8一个排针，排线若干按键三个三、流程框图四、程序调试#include reg51.hvoid delay()void delay1ms();void delay1(unsigned char t);unsigned char t0,t1;unsigned char code led1= 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x18,0x24,0x24,0x24,0x24,0x24,0x18,/00x00,0x18,0x1c,0x18,0x18,0x18,0x18,0x18,/10x00,0x1e,0x30,0x30,0x1c,0x06,0x06,0x3e,/20x00,0x1e,0x30,0x30,0x1c,0x30,0x30,0x1e,/30x00,0x30,0x38,0x34,0x32,0x7e,0x30,0x30,/40x00,0x1e,0x02,0x1e,0x30,0x30,0x30,0x1e,/50x00,0x1c,0x06,0x1e,0x36,0x36,0x36,0x1c,/60x00,0x3e,0x30,0x18,0x18,0x0c,0x0c,0x0c,/70x00,0x1c,0x36,0x36,0x1c,0x36,0x36,0x1c,/80x00,0x1c,0x36,0x36,0x36,0x3c,0x30,0x1c,/9 0x00,0x24,0x24,0x24,0x24,0x24,0x24,0x18;/0unsigned char code led2= 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x40,0xef,0x46,0x45,0xef,0x44,0x4f,0x44, 0x40,0xef,0x46,0x45,0xef,0x44,0x4f,0x44, 0x00,0x08,0x14,0x0a,0x04,0x22,0x3e,0x60, 0x00,0x08,0x14,0x0a,0x04,0x22,0x3e,0x60, 0x00,0x24,0x3c,0x7e,0x7e,0x3c,0x18,0x00, 0x04,0x94,0xf2,0xad,0x74,0xac,0x24,0x34, 0x40,0xef,0x46,0x45,0xef,0x44,0x4f,0x44， 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00 ,0xff,0xff,0xff,0xff,0xff,0xff,0xff,;void int_0() interrupt 0unsigned char w,q;unsigned int i,j,k,l,m,n;for(q=0;q2;q+)n=q;i=P0;j=t0;k=t1;l=TH1;m=TL1;for (k=0;k112;k+) for(m=0;m400;m+)w=0x01;j=k;for(i=0;i9;i+)P1=w;P0=led1j;delay1ms();w=1;j+;q=n;P0=i;t0=j;t1=k;TH1=l;TL1=m;void int_1() interrupt 2unsigned char w,a;unsigned int i,j,k,l,m,n;for(a=0;a2;a+)n=a;EA=0;i=P0;j=t0;k=t1;l=TH1;m=TL1;EA=1;for (k=0;k72;k+) for(m=0;m400;m+)w=0x01;j=k;for(i=0;i9;i+)P1=w;P0=led2j;delay1ms();w=1;j+;a=n;EA=0;P0=i;t0=j;t1=k;TH1=l;TL1=m;EA=1;void main()TMOD=0x10;EA=1;EX0=1;IT0=1;EX1=1;IT1=1;while(1);void delay1ms()unsigned int i;for(i=0;i0x10;i+);void delay()for(t0=0;t010;t0+)TH1=(65536-50000)/256;TL1=(65536-50000)%256;TR1=1;WHILE(!TF1);TF1=0;void delay1(unsigned int t)for(t1=0;t1t;t1+)delay();总结本