//
// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) 2011-2011 - DIGITEO - Bruno JOFRET
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution.  The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
//
//

function block=ARDUINO_DIGITAL_READ_sim(block,flag)
    global port_com arduino_sample_time
    
function DEBUG(message)
    disp("[DEBUG time = "+string(scicos_time())+"] {"+block.label+"} ARDUINO_DIGITAL_READ Simulation: "+message);
endfunction
    select flag
     case -5 // Error

     case 0 // Derivative State Update


     case 1 // Output Update
      // Envoi de la trame sur le port série : 4 pour un analog_READ et le num de pin (0 à ...)
//      pin="1"+ascii(97+block.rpar(1));
//      write_serial(1,pin,2);
      pin="Dr"+ascii(48+block.rpar(1));
      write_serial(1,pin,3);
      
      //binary transfer
      [a,b,c]=status_serial(1);
      while (b < 1) 
        [a,b,c]=status_serial(1);
      end
      values=read_serial(1,1);
      block.outptr(1)=evstr(values);
      
     case 2 // State Update

     case 3 // OutputEventTiming
          //arduino_sample_time=0.01;
          evout = block.evout(1);
          if evout < 0
              evout = arduino_sample_time;
          else
              evout = evout + arduino_sample_time;
          end
          block.evout(1) = evout;
     case 4 // Initialization
        disp("init digital read")
//        pin="0"+ascii(97+ block.rpar(1))+"0";  // élaboration du string à envoyer pour initialiser le pin
//        write_serial(1,pin,3);
        pin="Da"+ascii(48+ block.rpar(1))+"0";  // élaboration du string à envoyer pour initialiser le pin
        write_serial(1,pin,4);        
        
     case 5 // Ending
//        closeserial(port_com);
//         close_serial(1);
     case 6 // Re-Initialisation

     case 9 // ZeroCrossing

    else // Unknown flag

    end
endfunction