ADI公司在夏令营中要用到数据传输的实验，那我就把一些7026关于数据传输的程序写给大家看看吧

#include
#define CR  0x0D

int putchar(int ch);
char getchar2(void);
int write(char*ptr,int len);
char output1[65];


int main(void){
                   unsigned char jchar=0x30;
				   
				   int i;
	              
		           
		           GP1CON=0x011;

		           COMCON0 = 0x80;					// Setting DLAB
                   COMDIV0 = 0x88;			
   	               COMDIV1 = 0x00;
   	               COMCON0 = 0x07;					// Clearing DLAB

				   GP4DAT=0x04000000;
				   while(1)
				   {	 
				    for(i = 0;i <64;i++)
		           {
			        output1[i] = getchar2();
		            }
		            i = 0;
		           // output1[64] = 0x00;
				   //char output1[13]=getchar2();
				   
				         GP4DAT^=0x00040000;
						 write(output1,65);
						// jchar=getchar();

				   }
		           
}
int putchar2(int ch)  {                   /* Write character to Serial Port  */


    if(ch =='\n'){
			while(!(0x020==(COMSTA0 & 0x020)))
            {}
			COMTX=CR;
			}
 			while(!(0x020==(COMSTA0 & 0x020)))
			{}
 	        return (COMTX = ch);   
}


char getchar2 (void)  {                      

   	while(!(0x01==(COMSTA0 & 0x01)))
   	{}
  	return (COMRX);
    } 	 

int write ( char * ptr, int len)
 {
  int i;

  for (i = 0; i < len; i++) putchar2 (*ptr++);
  return len;
}

实验的结果：