大佬帮忙看看，单片机没电输出，8段四位数码管 -

标题: 大佬帮忙看看，单片机没电输出，8段四位数码管 [打印本页]

作者: happy2058 时间: 2020-4-27 01:16
标题: 大佬帮忙看看，单片机没电输出，8段四位数码管
接线检查过来，11对应，就是没电来
用的是共阳8段四位数码管，8段接P0，有上拉，片选接P0~P3

#include <reg52.h>
//                0 1 2 3 4 5 6 7  8 9
unsigned char LED8DATA_One[10] = {0xc0, 0xf9, 0xa4, 0xb0, 0x99, 0x92, 0x82, 0xf8, 0x80, 0x90};
//                高位    底位
unsigned char LED8DATA_Two[4] = {0x01, 0x02, 0x04, 0x08};
unsigned char led[4] = {0x00};
unsigned char k=0;
int minute = 0,sec = 0;
unsigned int Counter=0;
void LEDDATA(unsigned char MM, unsigned char jj)
{
P1 = MM;
P3 = jj;
}
void Time1_Init()
{
TMOD |= 0X10;
TMOD &= 0XDF;
TH1 = 0XFC;
TL1 = 0X66;
TR1 = 1;
}
void int_Init()
{
ET1 = 1;
EA = 1;
}
void main()
{
Time1_Init();
int_Init();

while (1);
}
void interrupt_time_1() interrupt 3
{
TH1 = 0XFC;
TL1 = 0X66;
Counter++;
if (1000 == Counter)
{
  Counter = 0;
  sec++;
  if (sec == 60)
  {
minute++;
sec = 0;
  }
  led[3] = sec % 10;
  led[2] = sec / 10 % 10;
  led[1] = minute % 10;
  led[0] = minute / 10 % 10;
}
if (k < 4)
{
  k++;
}
else
{
  k = 0;
}
LEDDATA(LED8DATA_One[led[k]],LED8DATA_Two[k]);
}

作者: man1234567 时间: 2020-4-27 09:22
P1、P3是啥东东

作者: benclee 时间: 2020-4-27 10:12
#include <reg52.h>
//                0 1 2 3 4 5 6 7  8 9
unsigned char LED8DATA_One[10] = {0xc0, 0xf9, 0xa4, 0xb0, 0x99, 0x92, 0x82, 0xf8, 0x80, 0x90};
//                高位    底位
unsigned char LED8DATA_Two[4] = {0x01, 0x02, 0x04, 0x08};
unsigned char led[4] = {0x00};
unsigned char k=0;
int minute = 0,sec = 0;
unsigned int Counter=0;
void LEDDATA(unsigned char MM, unsigned char jj)
{
P1 = MM;
P3 =jj;
}
void Time1_Init()
{
//TMOD |= 0X10;
//TMOD &= 0XDF;
EA = 1;
TMOD=0X10;
TH1 = 0XFC;
TL1 = 0X66;
ET1 = 1;
TR1 = 1;
}
void delay(int i)
{ int a,b;
for( a=0;a<i;a++)
for(b=0;b<200;b++)
;

}
void main()
{
Time1_Init();
while (1)
  { led[3] = sec % 10;
  led[2] = sec / 10 % 10;
  led[1] = minute % 10;
  led[0] = minute / 10 % 10;
   if (k < 4)
   {
      k++;
   }
   else
   {
   k = 0;
      }
   LEDDATA(LED8DATA_One[led[k]],LED8DATA_Two[k]);
   delay(5);
   P0=0X00;
  }
}
void interrupt_time_1() interrupt 3
{
TH1 = 0XFC;
TL1 = 0X66;
Counter++;
if (1000 == Counter)
{
  Counter = 0;
  sec++;
  if (sec == 60)
  {
minute++;
sec = 0;
  }

}
}
TOMD定时器设置不对

作者: happy2058 时间: 2020-4-27 23:24

man1234567 发表于 2020-4-27 09:22
P1、P3是啥东东

IO 口 P1和P3

作者: happy2058 时间: 2020-4-29 12:25

benclee 发表于 2020-4-27 10:12
#include
// 0 1 2 3 4 5 6 7 8 9
unsigned char LED8DATA_One[10] ...

是我学习板上IO有冲突，谢谢你哦

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