51单片机秒表程序到F进位怎么改？

ID:403136 · 发表于 2018-12-21 15:50

主体是秒表，但是要求不是到9进位，要求到F进位，采用四位数码管共阳，每个都是到F进位。我把我原来的代码发出来，求大神改一改！！！！！非常急，就一小时了。

#include <reg52.h>

sbit w1=P1^0;
sbit w2=P1^1;
sbit w3=P1^2;
sbit w4=P1^3;
sbit s1=P1^4;
sbit s2=P1^5;

unsigned char high;
unsigned char low;
unsigned char code led[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0x88,0x83,0xC6,0xA1,0x86,0x8E};          //共阳极数码管0~9
unsigned int sec=0;
unsigned char a = 1;
unsigned char count = 0;

void main ()
{

      TMOD=0x01;
      EA=1;    //中断总开关
      TR0=1;          //定时器的运行开关
      ET0=1;             //定时器的中断开关
      TH0=(65536-1000)>>8;          //定时器高8位寄存器
TL0=(65536-1000)&0x00FF;       //定时器低8位寄存器

      while (1);
}

void LEDscan()
{
   static unsigned char i=0;

      P0=0xFF;    //熄灭灯
      switch(i)
      {
         case 0:w1=1;w2=1;w3=1;w4=0;i++;P0=led[sec%10];break;       //数码管显示
         case 1:w1=1;w2=1;w3=0;w4=1;i++;P0=led[sec/10%10];break;
         case 2:w1=1;w2=0;w3=1;w4=1;i++;P0=led[sec/100%10]&0x7F;break;
         case 3:w1=0;w2=1;w3=1;w4=1;i=0;P0=led[sec/1000];break;
      }
}

  /*按键函数*/
void anjian ()
{
   if (s2==0)       //按键清零
         {
         sec=0;
            a=1;
            count=0;
            while (s2==0)
            {
               LEDscan();
            }
         }

if (s1==0)             //启动，停止
  {
a=!a;
      while (s1==0)
      {
         LEDscan();
      }
  }
}

/*中断函数*/
void zhongduan0() interrupt 1          //中断启动
{
static unsigned int k=0;       //定义一个K的变量

  TH0=(65536-1000)>>8;
  TL0=(65536-1000)&0x00FF;

      LEDscan();
      anjian();

      if(!a)
      {
   k++;
      if (k>=10)
      {
            k=0;
               sec++;
               if (sec>=9999)
               {
                  sec=0;
               }
      }
      }
}

ID:213173 · 发表于 2018-12-21 21:28

本帖最后由 wulin 于 2018-12-22 09:02 编辑

#include <reg52.h>

sbit w1=P1^0;
sbit w2=P1^1;
sbit w3=P1^2;
sbit w4=P1^3;
sbit s1=P1^4;
sbit s2=P1^5;

unsigned char high;
unsigned char low;
unsigned char code led[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0x88,0x83,0xC6,0xA1,0x86,0x8E};          //共阳极数码管0~9

unsigned int sec=0;
unsigned char a = 1;
//unsigned char count = 0;

void Timer0Init(void) //3906微秒@12.000MHz
{
TMOD |= 0x01; //设置定时器模式
TH0 = 0xF0; //设置定时初值
TL0 = 0xBE; //设置定时初值
TR0 = 1; //定时器0开始计时
EA=1;    //中断总开关
ET0=1;             //定时器的中断开关
}

void main ()
{
Timer0Init();
while (1);
}

void LEDscan()
{
static unsigned char i=0;
P0=0xFF;    //熄灭灯
switch(i)
{
case 0:w1=0;w2=0;w3=0;w4=1;i++;P0=led[sec&0x0f];break;       //数码管显示
case 1:w1=0;w2=0;w3=1;w4=0;i++;P0=led[sec>>4&0x0f];break;
case 2:w1=0;w2=1;w3=0;w4=0;i++;P0=led[sec>>8&0x0f]&0x7F;break;
case 3:w1=1;w2=0;w3=0;w4=0;i=0;P0=led[sec>>12&0x0f];break;
}
}

  /*按键函数*/
void anjian ()
{
if (s1==0)             //启动，停止
{
a=!a;
while (s1==0)
{
LEDscan();
}
}
if (s2==0)       //按键清零
{
sec=0;
a=1;
while(s2==0)
{
LEDscan();
}
}
}

/*中断函数*/
void zhongduan0() interrupt 1          //中断启动
{
// static unsigned int k=0;       //定义一个K的变量
TH0 = 0xF0; //设置定时初值
TL0 = 0xBE; //设置定时初值
LEDscan();
anjian();
if(!a)
{
sec++;
if(sec>0xffff)
sec=0;
}
}

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