keithley_2306.cpp

MTK 手机软件开发 META 源代码,开发环境: C++ Builder

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/*****************************************************************************
 *
 * Filename:
 * ---------
 *  Keithley_2306.cpp
 *
 * Project:
 * --------
 *   Maui META APP
 *
 * Description:
 * ------------
 *  Keithley power supply control function source
 *
 * Author:
 * -------
 *  Andy Ueng (mtk00490)
 *
 *============================================================================
 *             HISTORY
 * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
 *------------------------------------------------------------------------------
 * $Revision$
 * $Modtime$
 * $Log$
 *
 *------------------------------------------------------------------------------
 * Upper this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
 *============================================================================
 ****************************************************************************/
#include <vcl.h>
#include <math.h>

#ifndef __VISA_HEADER__
#include "visa.h"
#endif

#pragma hdrstop

#ifndef  _VISA_COMMON_H_
#include "visa_common.h"
#endif

// misc
#ifndef  _FT_UTILS_H_
#include "ft_utils.h"
#endif

#ifndef  _META_UTILS_H_
#include "meta_utils.h"
#endif

//=============================================================================
ViStatus kei2306_init(ViRsrc resourceName, ViPSession p_RM, ViBoolean idQuery, ViBoolean resetDevice, ViPSession p_vi)
{
   // ViSession RM, base;
    ViStatus vistat;

    vistat = viOpenDefaultRM( p_RM );
        if( vistat<VI_SUCCESS ) return vistat;

    vistat=viOpen( *p_RM, resourceName, VI_NULL, 5000, p_vi);
    if( vistat<VI_SUCCESS ) return vistat;

    return VI_SUCCESS;
}

//--------------------------------------------------------------------------
ViStatus kei2306_outputVoltCurr( ViSession vi, ViReal64 voltLev, ViReal64 currLev )
{
    ViStatus vistat;
    unsigned long num;
    char buf[BUFSIZE];

    AnsiString as_cmd = "SOURCE:VOLT " + Double_To_AnsiString( voltLev );
    vistat=viWrite(vi, as_cmd.c_str(), strlen(as_cmd.c_str()), &num);
    if( vistat!=VI_SUCCESS ) return vistat;

    as_cmd = "SOURCE:CURR " + Double_To_AnsiString( currLev );
    vistat=viWrite(vi, as_cmd.c_str(), strlen(as_cmd.c_str()), &num);
    if( vistat!=VI_SUCCESS ) return vistat;
    
    return VI_SUCCESS;
}

//--------------------------------------------------------------------------
ViStatus kei2306_measureVolt(ViSession vi, ViReal64 *p_voltLev )
{
    ViStatus vistat;
    unsigned long num;
    char buf[BUFSIZE];
    AnsiString asBase;
    AnsiString asExponent;

    AnsiString as_cmd = "READ?";
    vistat=viWrite(vi, as_cmd.c_str(), strlen(as_cmd.c_str()), &num);
    if( vistat!=VI_SUCCESS ) return vistat;

    vistat=viRead(vi, buf, BUFSIZE, &num);
    if( vistat!=VI_SUCCESS ) return vistat;

    buf[num-1]=NULL;
    AnsiString asStr(buf);
    
    if( getBaseFromStr( asStr, asBase ) == false )  return VI_ERROR_ABORT;
    if( getExponentFromStr( asStr, asExponent )== false )  return VI_ERROR_ABORT;

    *p_voltLev = (ViReal64) atof(asBase.c_str()) *  pow10( asExponent.ToInt() );

    return VI_SUCCESS;
}

//--------------------------------------------------------------------------
ViStatus kei2306_close( ViSession &RM, ViSession &vi )
{
    if( vi == NULL )  return VI_SUCCESS;
    ViStatus vistat;

    vistat = viClose( vi );
    if( vistat<VI_SUCCESS ) return vistat;
    vi = NULL;

    vistat = viClose( RM );
    if( vistat<VI_SUCCESS ) return vistat;
    RM = NULL;
    
    return VI_SUCCESS;
}