c = Uart2_Read();
 
 
        if(c == '\n') {
                if(mode == 1) 
                {
			response_rcvd = 1;             // set reception flag
                        mode=0;
                }
                else
                {
                        mode = 0;
                }
 
 
        } else if(prevChar == 'O' && c == 'K') {
 
                mode = 1;
                prevChar = ' ';
 
        } else {
 
                prevChar = c;
        }