File content as of revision 3:5e68dd4bbb70:

#include "mbed.h"

void write_to_master(char);                    //function to write data to master

I2CSlave slave(D14,D15);                       //configuring pins p27, p28 as I2Cslave
Serial pc (USBTX,USBRX);
InterruptIn interrupt(D9);
void FUNC_I2C_WRITE2CDMS(char  * data,int length)
{

    int slave_status = 1;
    while(slave_status)
    {                 
            slave.address(0x20);
            if(slave.receive()==1)
            {
                slave_status=slave.write(data,length);
               // printf("\n In the while loop\n");
                
               /* if(!slave_status)
                {
                        printf("slave wrote %c to master\n\r",*data);
              
                }*/
                
            }
            else
                if(slave.receive()==3 || slave.receive()==2)
                {
                     slave_status=slave.read(data,length);
                     /*if(!slave_status)
                     {
                         printf("1 read %c from master\n\r",*data);
                     }*/
                }
            //slave.stop();
    }
            printf("2 done");
}

/*void FUNC_I2C_READFCDMS()

{
    printf("\nEntered slave code\n");
    //read_loop=true;
    char *data_rec = new char;
   int slave_status =1;
     
     slave.address(0x20);
                
     
                
     printf("\nentered slave while loop\n");
                //if(slave.receive()==3) 
                while(slave_status==1)
                    slave_status=slave.read(data_rec,1);
                
     if(slave_status==0){printf("1 read %c from master\n\r",*data_rec);}
      //                 read_loop = false;}
                   
     printf("\n done \n \r");
     
     delete data_rec;
    
}
*/   
void main()
{
    printf("\nStarted slave... waiting for master\n");
    char * data = new char;
    *data = 'a';
    
    while(1)
    {
        //*(data_send)=pc.getc();
        
        FUNC_I2C_WRITE2CDMS(data,1);
        printf("\n The data send or received by slave is %c\n",*data);
        (*data)++;
        //wait(1);
    }
}