[求助] 新人求助

liujianyi 2016-5-15 15:58 楼主

//接收程序
#include
#define uchar unsigned char
#define uint unsigned int
uchar buffer[9];
uchar a,num;
uint n;
sbit RS=P2^0; //寄存器选择位，将RS位定义为P2.0引脚
sbit RW=P2^1; //读写选择位，将RW位定义为P2.1引脚
sbit E=P2^2;    //使能信号位，将E位定义为P2.2引脚
sbit BF=P0^7; //忙碌标志位，，将BF位定义为P0.7引脚

void delay(uint z)
  {
  uint i,j;
for(i=z;i>0;i--)
   for(j=110;j>0;j--);
  }
void write_com(uchar com)
{
  RS=0;
  RW=0;
  P0=com;
  delay(20);
  E=1;
  delay(20);
  E=0;
}
void write_data(uchar date)
{
  RS=1;
  RW=0;
  P0=date;
  delay(20);
  E=1;
  delay(20);
  E=0;
}
void init()
{
E=0;
write_com(0x38);
  write_com(0x0f);
write_com(0x06);
write_com(0x01);
//write_com(0x80);

}
void InitUART  (void)
{

PCON=0x00;
SCON  = 0x50;  //SM0=0  SM1=1  REN=1
TMOD = 0x20; //T1定时器工作方式2
TR1=1;
TH1 = 0xf3;
TL1=0xf3;
EA=1;
ES=1;
}

void main (void)
{ init();
  InitUART();
  delay(20);
  for(num=0;num<9;num++)
  write_data(buffer[num]);
  delay(200);

while (1)
for( n=0;n<9;n++)
  { while(RI!=1);
  RI=0;
  buffer[n]=a;

  }
}
void rxd() interrupt 4
{
   ES=0; //关串口中断
   a=SBUF;//命令存到命令数组
   RI=0; //软件清除接收中断
   ES=1;//开串口中断

}

//发送程序

#include
#define uchar unsigned char
uchar table[9]={0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39} ;    //  '1','2','3','4','5','6','7','8','9'
int i;
bit sent_over;
void DelayMs(uchar z)
{ uchar i,j;
for(i=z;i>0;i--)
for(j=110;j>0;j--);

}
void InitUART  (void)
{
PCON=0x00;
SCON  = 0x50;
TMOD = 0x20;
TR1=1;
TH1 = 0xf3;
TL1=0xf3;
EA=1;
ES=1;
}

void main (void)
{
InitUART();

sent_over=1;
   while(1)
  { static uchar i=0;
  if(sent_over==1)
   {
   sent_over=0;
      SBUF=table[i];
   if(i<9)
      i++;
   RI=0;
}
}
}

void txd() interrupt 4
{
  while(RI==0);
RI=0;
while(!TI);
TI=0;
}
两个AT89s51单片机，想让甲机发送信号，乙机接收后在1602液晶上显示循环123456789。这个程序哪出错了？？？