用定时器定时1秒，在P0口接数码管（BCD数码管），每秒显示的数字加一

ID:162360 · 发表于 2017-1-25 15:52

求教一位数码管，用定时器定时1秒，在P0口接数码管（BCD数码管），每秒显示的数字加一，如何用定时器延时编写，我只会用延时函数写，请大神帮忙修改成定时器定时1s，帮忙修改下程序
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
uchar code seg7ca[]={
0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f
   }; //0  1  2 3 4 5 6 7 8    9
void delay(uint t)
{
  uint i,j;
  for(i=0;i<t;i++)
  {
for(j=0;j<124;j++);
  }
}
void main()
{
  while(1)
  {
uchar i=0;
for(i=0;i<10;i++)
{
   P0=seg7ca[i];
   delay(1000);
}

  }
}

ID:158729 · 发表于 2017-1-25 16:31

#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit we=P2^7;
sbit du=P2^6;
uchar code seg7ca[]={
0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f
   }; //0  1  2 3 4 5 6 7 8    9
void delay(uint t)
{
  uint i,j;
  for(i=0;i<t;i++)
  {
for(j=0;j<124;j++);
  }
}
void main()
{
  while(1)
  {
uchar i=0;
we=1;
P0=0xfe;
we=0;
du=1;
for(i=0;i<10;i++)
{
P0=seg7ca[i];
      delay(1000);
if(i==9)
i=0;
}

  }
}

ID:162360 · 发表于 2017-1-25 16:58

nessus 发表于 2017-1-25 16:31
#include
#define uchar unsigned char
#define uint unsigned int

没有用到定时器呀

ID:158729 · 发表于 2017-1-25 17:16

天才鱼yhx 发表于 2017-1-25 16:58
没有用到定时器呀

之前不是给你回了一个用到定时器的吗

ID:162841 · 发表于 2017-1-25 20:44

没用到定时器

ID:158729 · 发表于 2017-1-26 10:21

　#include <reg52.h>
#define uchar unsigned char
#define uint  unsigned int
sbit we = P2^7;
sbit du = P2^6;
uchar counter,time_counter;
uchar code leddata[]={

            0x3F,  //"0"
            0x06,  //"1"
            0x5B,  //"2"
            0x4F,  //"3"
            0x66,  //"4"
            0x6D,  //"5"
            0x7D,  //"6"
            0x07,  //"7"
            0x7F,  //"8"
            0x6F,  //"9"
            0x77,  //"A"
            0x7C,  //"B"
            0x39,  //"C"
            0x5E,  //"D"
            0x79,  //"E"
            0x71,  //"F"
            0x76,  //"H"
            0x38,  //"L"
            0x37,  //"n"
            0x3E,  //"u"
            0x73,  //"P"
            0x5C,  //"o"
            0x40,  //"-"
            0x00,  //熄灭
            0x00  //自定义

                     };

void delay(uint z)
{
      uint x,y;
      for(x = z; x > 0; x--)
            for(y = 114; y > 0 ; y--);
}

void display(uchar i)
{
      P0 = 0xff;
      we = 1;
      P0 = 0xfe;//点亮第一位数码管
      we = 0;

      du = 1;
      P0 = leddata[i];
      du = 0;
      delay(1);
}

void main()
{
      TMOD = 0x01;//定时器0 工作模式1 16模式定时器
      TH0 = (65536 - 46082)/256;
      TL0 = (65536 - 46082)%256; //定时50ms
      TR0 = 1;//启动定时器0
      while(1)
      {
            if(TF0 == 1)
            {
                     TF0 = 0;
                     TH0 = 0x4b;
                     TL0 = 0xfe; //定时50ms
                     counter++;
            }
            if(counter == 20)
            {
                     counter = 0;
                     time_counter++;
            }
            if(time_counter == 9)
                     time_counter = 0;
            display(time_counter);
      }
}

ID:288773 · 发表于 2018-3-16 01:54

本帖最后由 1054586 于 2018-3-20 20:14 编辑

1秒定时器0-9文件

#include<reg52.h>

sbit we=P2^7;

sbit du=P2^6;

unsigned char code seg7ca[]={

0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};unsignedint cnt = 0;

unsigned char flag1s = 0;

unsigned char i = 0;

void main()

{ P0=0xfe;

TMOD= 0x01;

TH0= 0xFC;

TL0= 0x67;

TR0= 1;

EA= 1;

ET0= 1;

while(1)

{ if(flag1s == 1)

{ flag1s = 0;

i++;

P1=0x48;

we=1;

we=0;

du=1;

P0=seg7ca;

if(i>=9)

{

i=0;

}

void InterruptTime0() interrupt 1

{

TH0 = 0xFC;

TL0 = 0x67;

cnt++;

if(cnt >= 1000)

{

cnt= 0;

flag1s= 1;

}

ID:295783 · 发表于 2018-3-28 15:38

没有用到定时器加一个定时器的程序比如说下面的
unsigned char code seg7ca[]={
      0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};unsignedint cnt = 0;
unsigned char flag1s = 0;
unsigned char i = 0;
void main()
{ P0=0xfe;
      TMOD= 0x01;
      TH0= 0xFC;
      TL0= 0x67;
      TR0= 1;
      EA= 1;
      ET0= 1;
   while(1)
{    if(flag1s == 1)
               { flag1s = 0;
                        i++;
                        P1=0x48;
            we=1;
            we=0;
            du=1;
         P0=seg7ca;
         if(i>=9)
                        {
            i=0;
                  }
            }
}
}
void InterruptTime0() interrupt 1
{
      TH0 = 0xFC;
      TL0 = 0x67;
      cnt++;
      if(cnt >= 1000)
      {
               cnt= 0;
               flag1s= 1;
      }
}

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用定时器定时1秒，在P0口接数码管（BCD数码管），每秒显示的数字加一

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