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標(biāo)題: 在數(shù)碼管顯示的時(shí)候問(wèn)什么沒(méi)有指定的數(shù)碼管會(huì)跟著各位或者十位數(shù)字變化顯示， [打印本頁(yè)]

作者: 李洋洋 時(shí)間: 2018-9-18 09:58
標(biāo)題: 在數(shù)碼管顯示的時(shí)候問(wèn)什么沒(méi)有指定的數(shù)碼管會(huì)跟著各位或者十位數(shù)字變化顯示，
#include<reg52.h>
#define Data_Outport P0
sbit Lotch_Duan=P2^2;
sbit Lotch_Wei=P2^3;
sbit KEY_ADD=P3^3;
sbit KEY_DEC=P3^4;
void delay1(unsigned int t);
void delay2(unsigned int t);
void disply(unsigned char FirstBit,unsigned char Num);

unsigned char code Wei_Ma[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
unsigned char code Duan_Ma[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
unsigned char Huan_Chun[8];
void Shi_Jian(void);

void main()
{    unsigned char num=0;
Shi_Jian();
while(1)
{
      if(KEY_ADD==0)
   {
      delay2(10);
if(KEY_ADD==0)
{
   while(!KEY_ADD);
         if(num<99)
   {
            num++;
         }

}
   }
   if(KEY_DEC==0)
   {
      delay2(10);
if(KEY_DEC==0)
{
   while(!KEY_DEC);
         if(num>0)
   {
            num--;
         }

}
   }
   Huan_Chun[0]=Duan_Ma[num/10];
   Huan_Chun[1]=Duan_Ma[num%10];

}
}

void delay1(unsigned int t)
{
while(--t);
}
void delay2(unsigned int t)
{
while(t--)
{
   //大致延時(shí)1mS
   delay1(245);
   delay1(245);
}
}
void disply(unsigned char FirstBit,unsigned char Num)
{
static unsigned char i=0;

Data_Outport=0;
Lotch_Duan=1;
Lotch_Duan=0;

Data_Outport=Huan_Chun[i];
Lotch_Duan=1;
Lotch_Duan=0;

Data_Outport=Wei_Ma[i+FirstBit];
Lotch_Wei=1;
Lotch_Wei=0;
i++;
if(i==Num)
{
      i=0;
}

}
void Shi_Jian(void)
{
TMOD |=0x01;
TH0=(65536-2000)/256;
TL0=(65536-2000)%256;
EA=1;
ET0=1;
TR0=1;
}
void Ding_Shi(void)interrupt 1
{
TH0=(65536-2000)/256;
TL0=(65536-2000)%256;
disply(0,8);
}

作者: sxhwdz 時(shí)間: 2018-9-18 18:59
      Data_Outport=0;
      Lotch_Duan=1;
      Lotch_Duan=0;

      Data_Outport=Wei_Ma[i+FirstBit];
      Lotch_Wei=1;
      Lotch_Wei=0;

      Data_Outport=Huan_Chun[i];
      Lotch_Duan=1;
      Lotch_Duan=0;

      i++;
      if(i==Num)
      {
         i=0;
      }

次序換一下，先關(guān)閉段碼，再設(shè)置位碼，然后打開段碼。否則位還沒(méi)換，就打開段碼，顯示就錯(cuò)位了

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