File content as of revision 0:24e80ff2c7b1:

#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);

void main(){
    printf("press backspace for slave to start \n\r");
    while(1){
        if(pc.getc()==8){
            bool loopvariable1= true;
            char *data_send = new char;
            *data_send = 'k';
            slave.address(0x20);
            int slave_status=1;
            while(loopvariable1){
                if(slave.receive()==1){
                slave_status=slave.write(data_send,1);
                    if(!slave_status){
                        printf("1 wrote %c to master\n\r",*data_send);
                        loopvariable1 = false;
                    }
                }
            }
            printf("2 done");
        }
    }
}