适配PIC18F57Q84的DHT11读取代码无法运行求助

我在PIC18F57Q84开发板上尝试读取DHT11传感器数据并显示到LCD屏幕，参考了适配PIC18F4550的开源代码。作为PIC及MPLAB X IDE新手，我已将代码修改至可编译状态，但程序无法正常运行。

修改内容如下：

• 移除OSSCON相关代码
• 调整寄存器定义语法
• 将头文件从pic18f4550.h替换为pic18f57q84.h

另外发现，项目需包含Configuration_Header_File.h才能编译，但引入该文件会导致编译失败。已排查LCD与DHT11的接线，确认无问题。

修改后的代码：

#include <pic18f57q84.h>
#include <xc.h>
#include <stdio.h>
#include "LCD_16x2_8-bit_Header_File.h"

#define Data_Out LATAbits.LATA0             /* assign Port pin for data*/
#define Data_In PORTAbits.RA0 /* read data from Port pin*/
#define Data_Dir TRISAbits.TRISA0      /* Port direction */
#define _XTAL_FREQ 8000000          /* define _XTAL_FREQ for using internal delay */

void DHT11_Start();
void DHT11_CheckResponse();
char DHT11_ReadData();


void main() 
{
    char RH_Decimal,RH_Integral,T_Decimal,T_Integral;
    char Checksum;
    char value[10];    
   

    LCD_Init();         /* initialize LCD16x2 */
    ADCON1=0x0F;        /* this makes all pins as a digital I/O pins */    
    while(1)
    {   
        DHT11_Start();                  /* send start pulse to DHT11 module */
        DHT11_CheckResponse();          /* wait for response from DHT11 module */
        
        /* read 40-bit data from DHT11 module */
        RH_Integral = DHT11_ReadData(); /* read Relative Humidity's integral value */
        RH_Decimal = DHT11_ReadData();  /* read Relative Humidity's decimal value */
        T_Integral = DHT11_ReadData();  /* read Temperature's integral value */
        T_Decimal = DHT11_ReadData();   /* read Relative Temperature's decimal value */
        Checksum = DHT11_ReadData();    /* read 8-bit checksum value */
        
        /* convert humidity value to ascii and send it to display*/    
        sprintf(value,"%d",RH_Integral);
        LCD_String_xy(0,0,value);
        sprintf(value,".%d ",RH_Decimal);
        LCD_String(value);
        LCD_Char('%');
        
        /* convert temperature value to ascii and send it to display*/
        sprintf(value,"%d",T_Integral);
        LCD_String_xy(1,0,value);
        sprintf(value,".%d",T_Decimal);
        LCD_String(value);
        LCD_Char(0xdf);
        LCD_Char('C');
        
        sprintf(value,"%d  ",Checksum);
        LCD_String_xy(1,8,value);
        
        /* check addition of humidity and temperature value equals to checksum */
        if(Checksum != (RH_Integral + RH_Decimal + T_Integral + T_Decimal))
            LCD_String_xy(0,8,"Error");
        else
            LCD_String_xy(0,8,"No Error");
        
        MSdelay(500);
        
    }
}

char DHT11_ReadData()
{
  char i,data = 0;  
    for(i=0;i<8;i++)
    {
        while(!(Data_In & 1));      /* wait till 0 pulse, this is start of data pulse */
        __delay_us(30);         
        if(Data_In & 1)             /* check whether data is 1 or 0 */    
          data = ((data<<1) | 1); 
        else
          data = (data<<1);  
        while(Data_In & 1);
    }
  return data;
}

void DHT11_Start()
{    
    Data_Dir = 0;       /* set as output port */
    Data_Out = 0;       /* send low pulse of min. 18 ms width */
    __delay_ms(18);
    Data_Out = 1;       /* pull data bus high */
    __delay_us(20);
    Data_Dir = 1;       /* set as input port */    
//    LED = 14;
}

void DHT11_CheckResponse()
{
    while(Data_In & 1);     /* wait till bus is High */     
    while(!(Data_In & 1));  /* wait till bus is Low */
    while(Data_In & 1);     /* wait till bus is High */
} 

内容的提问来源于stack exchange，提问作者yui1236