File content as of revision 1:e42651c601d2:

#include "mbed.h"
#include "rtos.h"

const int addr = 0x20<<1;                     //slave address 
I2C master (D14,D15);                      //configure pins p27,p28 as I2C master
Serial pc (USBTX,USBRX);
//DigitalOut interrupt(D9);
//InterruptIn data_ready(D10);
InterruptIn aple(D11);

DigitalOut pes(D12);
DigitalOut led(LED_RED);
DigitalOut led1(LED_GREEN);



bool f = 1;
char rdata;
void readds()
{ //wait();    
               led = ! led ;
               f =  master.read(addr,&rdata,1);
              if(f == 0) led1 = ! led1 ;
               //pc.printf("read %d \n",rdata);
               
 }   
 
 int loop=1;
 char *writedata = new char;
void FUNC_MASTER_WRITE()
 {    int data = pc.getc();
      loop=1;
 
  pc.printf("read ");
 master.frequency(100000); 
  *writedata = data; 
     while(loop)
     {
         bool check = (bool)master.write(addr,writedata,1);
         //pc.printf("read ");
         if(check==0)
         {
             pc.printf("written\n");
             loop=0;
             //readds();
             
         }    
         
     }
}      
int main()
{   
    
    //data_ready.rise(&FUNC_INT);
    printf("\nstarted master\n"); 
   // aple.mode(PullDown);
    aple.rise(&readds);
    //aple.rise(&readds);
    while(1)
    
    { 
    pc.printf("read %d \n",rdata);
    //pes = 1;
    //wait(5);
    //pes = 0;
    //wait(5);
    // if(aple==1)led=!led;
     //FUNC_MASTER_WRITE();  
    }
}