MAX7219驱动8X8点阵级联，翻页附源程序 -

#include <reg52.h>
#include <intrins.h>
#include <max7219.h>
#include <zimo.h>
#define uchar unsigned char
#define uint unsigned int
uchar timecount,point,sec;
void timedeal();
void Delay_xms(uint x)
{
uint i,j;
for(i=0;i<x;i++)
for(j=0;j<112;j++);
}
void main(void)
{
uchar i,j,a,b,c,d;
IE=0x82; //允许定时器0工作
TR0=1; //定时器0可以工作
TMOD=0x01; //timer0为模式1
TH0 = 0x4c;
TL0 = 0x00;
Delay_xms(50);
InitMAX7219();
while (1)
{
a=sec%10;
c=sec/10;
/*******************************以下屏幕旋转90度**************/
if(b==a)
{
for(i=0;i<8;i++)
{
for(j=0;j<8;j++)
{
Write_1(8-j,logo_1[a][j]);
Write_2(8-j,logo_2[c][j]|logo_1[11][j]);
}
}
}
else
{
for(i=0;i<8;i++)
{
for(j=0;j<8;j++)
{
Write_1(8-j,(logo_1[b][j]<<i|logo_1[b+1][j]>>8-i));
if(d==c) Write_2(8-j,logo_2[d][j]|logo_1[12][j]);
else Write_2(8-j,(logo_2[d][j]<<i|logo_2[d+1][j]>>8-i)|logo_1[12][j]);
}
Delay_xms(50);
}
}
b=a;
d=c;
/*******************************以下屏幕旋转90度**************
if(b==a)
{
for(j=1;j<9;j++)
{
Write_1(j,logo_3[b][j-1]); //1
Write_2(j,logo_4[d][j-1]|logo_3[11][j-1]); //2
}
}
else
for(i=0;i<8;i++)
{
for(j=1;j<9;j++)
{
Write_1(j,logo_3[b][(j-1+i)]); //1
if(d==c)Write_2(j,logo_4[d][(j-1)]|logo_3[12][j-1]); //2
else Write_2(j,logo_4[d][(j-1+i)]|logo_3[12][j-1]);//2
}
Delay_xms(50);
}
b=a;
d=c;
/**************************************************************************/
}
}
/****************************************************/
void time50ms(void) interrupt 1 //计时模式
{
TH0 = 0x4c;
TL0 = 0x00;
timecount++;
if(timecount==10)
{
timecount=0;
point=!point;
if(point)
{
sec++;
if(sec>=60)
sec=0;
}
}
}
/*************************************************/
#ifndef _MAX7219_H_
#define _MAX7219_H_
#include <REGX51.H>
/*********************** 定义MAX7219 内部寄存器 **********************/
#define REG_DECODE 0x09 // 译码方式寄存器
#define REG_INTENSITY 0x0a // 亮度寄存器
#define REG_SCAN_LIMIT 0x0b // 扫描界限寄存器
#define REG_SHUTDOWN 0x0c // 停机寄存器
#define REG_DISPLAY_TEST 0x0f // 显示测试寄存器
#define INTENSITY_MIN 0x00 // 最小显示亮度
#define INTENSITY_MAX 0x0f // 最大显示亮度
/*********************** 定义MAX7219 端口信号 ************************/
sbit DATA=P3^5;
sbit LOAD=P3^4;
sbit CLK=P3^3;
#define DATA_high DATA=1
#define DATA_low DATA=0
#define LOAD_high LOAD=1
#define LOAD_low LOAD=0
#define CLK_high CLK=1
#define CLK_low CLK=0
/************************** 函数原型说明 *****************************/
void Write_1 (unsigned char, unsigned char);
void Write_2 (unsigned char, unsigned char);
void SendByte (unsigned char);
void Clear (void);
/************************************************************************
* 函数原型：void Init()
* 功能: 对MAX7219进行初始化，调用任何其他函数之前必需先调用此函数
*************************************************************************/
void InitMAX7219(void)
{
DATA_high;
LOAD_high;
CLK_high;
Write_1(REG_SCAN_LIMIT, 7); // 扫描8位数字
Write_1(REG_DECODE, 0); // 设置不译码方式
Write_1(REG_SHUTDOWN,1); // 结束停机方式，正常工作
Write_1(REG_DISPLAY_TEST, 0); // 结束显示测试，正常工作
Write_1(REG_INTENSITY, 0); // 设置亮度
Write_2(REG_SCAN_LIMIT, 7); // 扫描8位数字
Write_2(REG_DECODE, 0); // 设置不译码方式
Write_2(REG_SHUTDOWN,1); // 结束停机方式，正常工作
Write_2(REG_DISPLAY_TEST, 0); // 结束显示测试，正常工作
Write_2(REG_INTENSITY, 0); // 设置亮度
Clear(); // 清零全部显示器
}
/*************************************************************************
* 函数原型：void Clear()
* 功能：关闭全部显示器
**************************************************************************/
void Clear (void)
{
unsigned char i;
for (i=1;i<=8;i++)
Write_1(i, 0); // 关闭全部显示器
Write_2(i, 0);
}
/*************************************************************************
* 函数原型：static void Write (unsigned char reg_add, unsigned char dat)
* 功能：向指定的MAX7219内部寄存器写入数据
* 参数: reg_add = MAX7219内部寄存器地址
dat = 待写入的数据
**************************************************************************/
void Write_1 (unsigned char reg_add, unsigned char dat)
{
LOAD_low; // 使LOAD变低，启动串行数据发送
SendByte(reg_add); // 发送MAX7219内部寄存器地址
if(reg_add>8) SendByte(dat); // 发送待写入的数据
else SendByte((dat<<7)|(dat>>1)); //如发送的是显示数据，则根据硬件转换一下数据位
LOAD_high; // 使LOAD变高，串行数据结束
}
/*************************************************************************
* 函数原型：static void Write (unsigned char reg_add, unsigned char dat)
* 功能：向指定的MAX7219内部寄存器写入数据
* 参数: reg_add = MAX7219内部寄存器地址
dat = 待写入的数据
**************************************************************************/
void Write_2 (unsigned char reg_add, unsigned char dat)
{
LOAD_low; // 使LOAD变低，启动串行数据发送
SendByte(reg_add); // 发送MAX7219内部寄存器地址//写入地址，即数码管编号
if(reg_add>8) SendByte(dat); // 发送待写入的数据 //写入数据，即数码管显示数字
else SendByte((dat<<7)|(dat>>1)); //如发送的是显示数据，则根据硬件转换一下数据位
CLK_high;
SendByte(0x00); // 第一片空
SendByte(0x00); // 第一片空
LOAD_high; // 使LOAD变高，串行数据结束
}
/*************************************************************************
* 函数原型：static void SendByte (unsigned char dat)
* 功能：向MAX7219发送一个字节串行数据
* 参数：dat = 待发送的数据
**************************************************************************/
void SendByte (unsigned char dat)
{
unsigned char i;
for (i=0; i<8; i++)
{
CLK_low; // 使CLK变低
if(dat&0x80) // 发送一位数据"1"或"0"
DATA_high;
else
DATA_low;
dat<<=1;
CLK_high; // 使CLK变高
}
}
#endif
/************************************************************************/
unsigned char code logo_1[][8]=
{
0x00,0x00,0x3E,0x41,0x41,0x41,0x41,0x3E,//0
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7F,//1
0x00,0x00,0x46,0x49,0x49,0x49,0x49,0x31,//2
0x00,0x00,0x41,0x49,0x49,0x49,0x49,0x36,//3
0x00,0x00,0x70,0x08,0x08,0x08,0x08,0x7F,//4
0x00,0x00,0x31,0x49,0x49,0x49,0x49,0x46,//5
0x00,0x00,0x3E,0x49,0x49,0x49,0x49,0x46,//6
0x00,0x00,0x40,0x40,0x40,0x40,0x40,0x3F,//7
0x00,0x00,0x36,0x49,0x49,0x49,0x49,0x36,//8
0x00,0x00,0x31,0x49,0x49,0x49,0x49,0x3E,//9
0x00,0x00,0x3E,0x41,0x41,0x41,0x41,0x3E,//0
0x22,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x41,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};
unsigned char code logo_2[][8]=
{
0x00,0x00,0x3E,0x41,0x41,0x41,0x41,0x3E,//0
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7F,//1
0x00,0x00,0x46,0x49,0x49,0x49,0x49,0x31,//2
0x00,0x00,0x41,0x49,0x49,0x49,0x49,0x36,//3
0x00,0x00,0x70,0x08,0x08,0x08,0x08,0x7F,//4
0x00,0x00,0x31,0x49,0x49,0x49,0x49,0x46,//5
0x00,0x00,0x3E,0x41,0x41,0x41,0x41,0x3E,//0
};
unsigned char code logo_3[][8]=
{
0x00,0x1E,0x21,0x21,0x21,0x21,0x21,0x1E,//0
0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//1
0x00,0x3E,0x01,0x01,0x1E,0x20,0x20,0x1F,//2
0x00,0x3E,0x01,0x01,0x1E,0x01,0x01,0x3E,//3
0x00,0x21,0x21,0x21,0x1F,0x01,0x01,0x01,//4
0x00,0x1F,0x20,0x20,0x1E,0x01,0x01,0x3E,//5
0x00,0x1F,0x20,0x20,0x3E,0x21,0x21,0x1E,//6
0x00,0x3E,0x01,0x01,0x01,0x01,0x01,0x01,//7
0x00,0x1E,0x21,0x21,0x1E,0x21,0x21,0x1E,//8
0x00,0x1E,0x21,0x21,0x1F,0x01,0x01,0x3E,//9
0x00,0x1E,0x21,0x21,0x21,0x21,0x21,0x1E,//0
0x00,0x00,0x80,0x00,0x00,0x00,0x80,0x00,
0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x80,
};
unsigned char code logo_4[][8]=
{
0x00,0x1E,0x21,0x21,0x21,0x21,0x21,0x1E,//0
0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//1
0x00,0x3E,0x01,0x01,0x1E,0x20,0x20,0x1F,//2
0x00,0x3E,0x01,0x01,0x1E,0x01,0x01,0x3E,//3
0x00,0x21,0x21,0x21,0x1F,0x01,0x01,0x01,//4
0x00,0x1F,0x20,0x20,0x1E,0x01,0x01,0x3E,//5
0x00,0x1E,0x21,0x21,0x21,0x21,0x21,0x1E,//0
};

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