基于单片机AT89C51的花样跑马灯设计报告.doc

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基于AT89C51的花样跑马灯
课设简介
课设目的
为了进一步巩固学****的理论知识,增强学生对所学知识的实际应用能力和运用所学的知识解决实际问题的能力,开始为期两周的课程设计。通过设计使学生在巩固所学知识的基础输出端口和片外高8位地址总线端口。
〔~〔10~17脚：8位通用输入/输出端口,具有第二功能。

X1
X2
P0
AT89C51
RST
P2
1-8红色LED
9-16绿色LED
晶振

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1振荡电路
晶振为单片机提供时钟信号。设置为12MHz。
2跑马灯显示电路
P0口连接1-8号红色LED灯,根据输出的高低电平控制灯的亮灭；P2口接9-16号绿色LED灯。
三．软件电路设计
本课程设计是采用89C51单片机设计的花样跑马灯,通过keil进行c语言编程,通过protues进行软件硬件仿真。仿真时可以观察到不同方式的跑马灯闪烁。
开始程序
程序主体
条件判断
跑马灯延时
程序分支
四．C语言源程序
#include<>
#define uchar unsigned char
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#define uint unsigned int
uchar code Pattern_P0[]=
{
0xfc,0xf9,0xf3,0xe7,0xcf,0x9f,0x3f,0x7f,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xe7,0xdb,0xbd,0x7e,0xbd,0xdb,0xe7,0xff,
0xe7,0xc3,0x81,0x00,0x81,0xc3,0xe7,0xff,
0xaa,0x55,0x18,0xff,0xf0,0x0f,0x00,0xff,
0xf8,0xf1,0xe3,0xc7,0x8f,0x1f,0x3f,0x7f,
0x7f,0x3f,0x1f,0x8f,0xc7,0xe3,0xf1,0xf8,
0xff,0x00,0x00,0xff,0xff,0x0f,0xf0,0xff,
0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe,
0xfe,0xfc,0xf8,0xf0,0xe0,0xc0,0x80,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe,
0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff
};
uchar code Pattern_P2[]=
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{
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,
0xfc,0xf9,0xf3,0xe7,0xcf,0x9f,0x3f,0xff,
0xe7,0xdb,0xbd,0x7e,0xbd,0xdb,0xe7,0xff,
0xe7,0xc3,0x81,0x00,0x81,0xc3,0xe7,0xff,
0xaa,0x55,0x18,0xff,0xf0,0x0f,0x00,0xff,
0xf8,0xf1,0xe3,0xc7,0x8f,0x1f,0x3f,0x7f,
0x7f,0x3f,0x1f,0x8f,0xc7,0xe3,0xf1,0xf8,
0xff,0x00,0x00,0xff,0xff,0x0f,0xf0,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,
0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xfe,0xfc,0xf8,0xf0,0xe0,0xc0,0x80,0x00,