C语言编译错误，能帮我看看程序哪里有问题吗?我是初学者

ID:735774 · 发表于 2020-6-10 16:06

#include "reg52.h"
#include "lcd.h"
#include "delay.h"

void main()
{
      TMOD=0x20;
      TH1=0xfd;
      TL1=0xfd;       //设置波特率9600
      SCON=0x50;          //允许串口接收
      PCON=0x00;
      TR1=1;                      //启动定时器1
      EA=1;                      //开启中断
      ES=1;
LCD_INT();                //屏幕初始化
      Write_String(1,5,"1234"); //对应的灯
      while(1);

}
void Xian(uchar cm)
{
      switch(cm)
      {
            case 0:Write_String(2,5,"0000");break;
            case 1:Write_String(2,5,"1000");break;                //灯的亮灭1亮0灭
            case 2:Write_String(2,5,"0100");break;
            case 4:Write_String(2,5,"0010");break;
            case 8:Write_String(2,5,"0001");break;
            default: break;
      }
}
void UART() interrupt 4 using 0                                  //串口中断
{
if(RI)
{
      P2&=SBUF;
      Xian(P2&0x0F);
}
  TI=0;
  RI=0;
}
问题我放在图片里了。