單片機C語言為什么Usartfiguration重復定義怎么修改?

ID:1069757 · 發(fā)表于 2023-4-11 10:56

#include <REGX52.H>
#include "LCD1602.h"
#include "DS18B20.h"
#include "Delay.h"
#include "Timer0.h"

float T;

void main()
{
      UsartConfiguration();
      Timer0_Init();
      DS18B20_ConvertT();             //上電先轉(zhuǎn)換一次溫度，防止第一次讀數(shù)據(jù)錯誤
      Delay(1000);                      //等待轉(zhuǎn)換完成
      LCD_Init();
      LCD_ShowString(1,1,"Temperature:");
      P1_0=0;
      while(1)
      {
            DS18B20_ConvertT();       //轉(zhuǎn)換溫度
            T=DS18B20_ReadT();       //讀取溫度
            if(T<0)                               //如果溫度小于0
            {
                     LCD_ShowChar(2,1,'-');       //顯示負號
                     T=-T;                      //將溫度變?yōu)檎龜?shù)
            }
            else                               //如果溫度大于等于0
            {
                     LCD_ShowChar(2,1,'+');       //顯示正號
            }
            LCD_ShowNum(2,2,T,3);             //顯示溫度整數(shù)部分
            LCD_ShowChar(2,5,'.');             //顯示小數(shù)點
            LCD_ShowNum(2,6,(unsigned long)(T*10000)%10000,4);//顯示溫度小數(shù)部分
            if(T>=24)
            {P1_0=1;
            }
            else
                     P1_0=0;
      }
}

sbit Motor=P1^0;
unsigned char Counter,Compare;       //???????,????PWM
unsigned char KeyNum,Speed;
void forward()
{
            Compare=0 ;
}

void back()
{
      Compare=50    ;
}

void left()
{
      Compare=100;
}

void Com_Int(void) interrupt 4
{
      unsigned char receive_data;
      EA = 0;
      if(RI == 1)
      {
            RI=0;
            receive_data = SBUF;
            switch(receive_data)
            {
                     case ('1'):
                              forward();break;
                     case ('2'):
                              back();break;
                     case ('3'):
                              left();break;

            }
      }
            EA = 1;
}

void UsartConfiguration()
{
      SCON=0X50;       //SCON ??????????,???????????????/????????????
      TMOD=0X20;
      PCON=0X00;
      TH1=0Xfd;
      TL1=0Xfd; //????9600????fd
      TR1= 1;
      ES = 1;
         EA = 1;
PS=1;
}

void Timer0_Routine() interrupt 1
{
      TL0 = 0x9C;             //??????
      TH0 = 0xFF;             //??????
      Counter++;
      Counter%=100;       //??????????0~99
      if(Counter<Compare)       //????????
      {
            Motor=1;             //??1
      }
      else                               //????????
      {
            Motor=0;             //??0
      }
}