数码管显示时间及点阵显示字符.doc

/数码管显示时间及点阵显示字符#include #include #define uchar unsigned char#define uint unsigned int/定义Max7219端口#define DUAN P0 /P0口控制段#define WEI P2 /P2口控制位sbit k_hour=P10;/ 更改小时按键sbit k_min=P11;/ 更改分钟按键sbit k_sec=P12;/ 更改秒按键/定义数码管端口sbit Max7219_pinCLK = P12;sbit Max7219_pinCS = P11;sbit Max7219_pinDIN = P10;/Max7219位定义unsigned char key; /P3按键扫描(执行模块控制)code uchar seg7code11= 0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0XBF; /显示段码 数码管字跟uchar wei8=0XFE,0XFD,0XFB,0XF7,0XEf,0XDf,0XBf,0X7f; /位的控制端uchar numb8; /定义字符串uint sec=0,min,hour;/数码管初始定义uchar code disp278=0x00,0x3E,0x2A,0xFF,0xAA,0xBE,0xC0,0x00,/电0x00,0x08,0x08,0x08,0x08,0x08,0x08,0x00,/一0x00,0x00,0x1E,0x20,0x40,0x20,0x1E,0x00, /V0x00,0x00,0x4E,0x4A,0x4A,0x7A,0x00,0x00, /50x00,0x00,0x42,0x7E,0x42,0x00,0x00,0x00,/I0x00,0x0C,0x1E,0x3C,0x3C,0x1E,0x0C,0x00,/love0x00,0x00,0x3E,0x40,0x40,0x3E,0x00,0x00,/U;char flag;/定义点阵显示字符void Delay_xms(uint x)uint i,j;for(i=0;ix;i+)for(j=0;j=1;i-) Max7219_pinCLK=0; Max7219_pinDIN=DATA&0x80; DATA=DATA=24)hour=0;if(k_min=0)min+;while(!k_min);if(min=60)min=0;if(k_sec=0)sec+;while(!k_sec);if(sec=60) sec=0;/数码管按键函数void timer1(void)interrupt 3/每一秒增加一 uchar i; TH1=0X3c;/定时初值TL1=0Xaf;/定时初值 i+; if(i=20) i=0; sec+;/秒加1 if(sec=60) sec=0;/秒清零 min+;/60秒后分加1 if(min=60) min=0;/分清零 hour+;/60分后时加1 if(hour=24) hour=0;/时清零 /数码管中断函数void InitInterrupt() TMOD=0X10;/定义定时器工作方式TH1=0X3c;TL1=0Xaf;ET1=1;TR1=1;/开定时器EA=1;/开中断/数码管中断初始化void main1()uchar m,n;Delay_xms(500); P2=0xaa; Delay_xms(500); P2=0x55; Delay_xms(500);flag=0;Init_MAX7219(); flag=0; while(1) for(m=0;m7;m+) for(n=0;n9;n+)Write_Max7219(n,disp2mn-1);Delay_xms(500); /点阵Main函数void main2()InitInterrupt(); /中断初始化Display1();Display2();while(1) SetTime();/按键函数 t_to_dis();/确定秒分时值 display();/显示秒分时值/数码管Main函数void ext_int0(void) interrupt 0 using 1if(P3!=0xff)Delay_xms(10);key=P3;while(P3!=0xff);switch(key)case 0xfe:main1();break;case 0xfd:main2();break;default:break;/判断有按键按下，所控制的程序void mai