我想编一段程序  串口向51输入一段十六进制数将这段数存入数组a[]中  然后验证数组中是不是这组数  试了很多遍总是不能成功 请老鸟指点一下
程序如下
#include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
#define SBUF_Len 6
unsigned char SBUF_data_in[SBUF_Len];

unsigned char i,flag,enable;
static unsigned char Rx_counter,Tx_counter;

void inituart()
{
    TMOD=0x20; //串口方式1，定时器1
    TH1=0xfd; //波特率9600bps@11.0592MHZ
    TL1=0xfd;
    TR1=1; //启动定时器1
    REN=1; //允许串口接收
    SM0=0;
    SM1=1;
    EA=1; //开全局中断
    ES=1; //允许串口中断
}
 
void delay(uint z)
{
    uint x;
    uchar y;
    for(x=z;x>0;x--)
        for(y=200;y>0;y--);
}

void serialcomm() interrupt 4
{
    if(RI)
    {
        RI=0;         
        SBUF_data_in[Rx_counter]=SBUF;//数据写入缓冲数组
        Rx_counter++;
        
        if(Rx_counter>=6)
        {
            Rx_counter=0;
            flag=1; //置串口发送标志位=1,说明10个数已接收到
            ES=0;
        }
    }
}
 
void ack()
{
    if(flag==1)
        {
            if(SBUF_data_in[0]==0x00)
            {
                if(SBUF_data_in[1]==0x01)
                {
                    if(SBUF_data_in[2]==0x02)
                    {
                        if(SBUF_data_in[3]==0x03)
                        {
                            if(SBUF_data_in[4]==0x04)
                            {
                                if(SBUF_data_in[5]==0x05)
                                    enable=1;
                                
                                       
                            }
                        }
                    }
                }
            }
        }
}

void main()
{
    inituart();
     
    Rx_counter=0;
    while(1)
        {
        
            if(flag==1)
                {
                ack();
            if(enable==1)
                   {
                    ES=0;
                    for(Rx_counter=0;Rx_counter<6;Rx_counter++)
                        {
                            SBUF=SBUF_data_in[Rx_counter];
                            while(!TI);
                            TI=0;
                            SBUF=Rx_counter;
                            while(!TI);
                            TI=0;   
                        }        
                        delay(2000);
                    ES=1;
                    }
            
                flag=0;
                 }
        }
}