UsbFTInterfaceTest.cpp

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// $Id: UsbFTInterfaceTest.cpp,v 1.4 2006/03/16 17:08:23 fmachefe Exp $

// Include files 
#include <ctime>

// ROOT include files
#include "TRandom.h"
#include "TH1D.h"

// local
#include "UsbFTInterface.h"
#include "UsbFTInterfaceTest.h"

//-----------------------------------------------------------------------------
// Implementation file for class : UsbFTInterfaceTest
//
// 2004-07-23 : Fr�d�ric Machefert
//-----------------------------------------------------------------------------

//=============================================================================
// Standard constructor, initializes variables
//=============================================================================
UsbFTInterfaceTest::UsbFTInterfaceTest(  ) :
  m_address(1),
  m_size (64),
  m_mean (30000.),
  m_sigma(10000.)
  {
  setName ( "UsbFTInterfaceTest" );
  setType ( "UsbFTInterface" );
  setTitle( "UsbFTInterface test" );
}

//=========================================================================
//  virtual function intialize
//=========================================================================
StatusCode UsbFTInterfaceTest::initialize ( ) {
  openRootFile ();
  m_write=new TH1D( "Write" , "Write" , 1000 , 0. , 65535. );
  m_read =new TH1D( "Read"  , "Read"  , 1000 , 0. , 65535. );
  m_error=new TH1D( "Error" , "Error" , 1000 , 0. , 65535. );
  m_rnd =new TRandom();
  addDataStream("Write","Written values");
  addDataStream("ErrorWrite","Error - Written values if Error");
  addDataStream("ErrorRead","Error - Read values if Error");
  addDataStream("TimeWrite","Time to write");
  addDataStream("TimeRead","Time to read");
  //  addHisto1d( m_write );
  //  addHisto1d( m_read );
  return StatusCode::SUCCESS;
}

//=========================================================================
//  Virtual function execute
//=========================================================================
StatusCode UsbFTInterfaceTest::execute ( ) {

  // prepare vector to be written
  std::vector<U32> write,read;
  write.reserve(m_size);
  read.reserve(m_size);
  for (unsigned int i=0; i<m_size; ++i){
    write.push_back((unsigned int)((U16)(m_rnd->Gaus(m_mean,m_sigma))));
  }

  // fetch the usb interface
  UsbFTInterface *usb=dynamic_cast<UsbFTInterface*>( element() );
  usb->setWordSize(UsbFTInterface::WS_Word);

  // write / read and measure times
  float tw,tr;
  clock_t start;
  start=clock();
  usb->usbWrite(m_address,write);
  tw=elapsedTime(start);
  start=clock();
  usb->usbRead(m_address,m_size,read);
  tr=elapsedTime(start);
  dataFill("TimeWrite",tw);
  dataFill("TimeRead",tr);

  // store values and check errors
  float w,r;
  for (unsigned int i=0; i<m_size; ++i){
    w=write[i];
    r=read[i];
    dataFill("Write",w);
    m_write->Fill(w);
    m_read->Fill(r);
    if (w!=r){
      warning("Error!");
      m_error->Fill(w);
      dataFill("ErrorWrite",w);
      dataFill("ErrorRead",r);
    }
  }
  return StatusCode::SUCCESS;
}

//=========================================================================
//  Virtual function finalize
//=========================================================================
StatusCode UsbFTInterfaceTest::finalize ( ) {
  closeRootFile(); // Deletes the histos -> do not make it yourself !!!
  return StatusCode::SUCCESS;
}