/*
*
*
* Win32 include file
* for accessing the 32-bit GPIB DLL (gpib-32.dll)
*
*
* Contains user variables (ibsta, iberr, ibcnt, ibcntl),
* function prototypes and useful defined constants for
* calling NI-488 and NI-488.2 routines from a Microsoft
* C/C++ Win32 application.
*
*
* Copyright 1995 National Instruments Corporation
*
*/
#ifndef DECL_32_H // ensure we are only included once
#define DECL_32_H
#ifdef __cplusplus
extern "C" {
#endif
/***************************************************************************/
/* HANDY CONSTANTS FOR USE BY APPLICATION PROGRAMS ... */
/***************************************************************************/
#define UNL 0x3f /* GPIB unlisten command */
#define UNT 0x5f /* GPIB untalk command */
#define GTL 0x01 /* GPIB go to local */
#define SDC 0x04 /* GPIB selected device clear */
#define PPC 0x05 /* GPIB parallel poll configure */
#define GET 0x08 /* GPIB group execute trigger */
#define TCT 0x09 /* GPIB take control */
#define LLO 0x11 /* GPIB local lock out */
#define DCL 0x14 /* GPIB device clear */
#define PPU 0x15 /* GPIB parallel poll unconfigure */
#define SPE 0x18 /* GPIB serial poll enable */
#define SPD 0x19 /* GPIB serial poll disable */
#define PPE 0x60 /* GPIB parallel poll enable */
#define PPD 0x70 /* GPIB parallel poll disable */
/* GPIB status bit vector : */
/* global variable ibsta and wait mask */
#define ERR (1<<15) /* Error detected */
#define TIMO (1<<14) /* Timeout */
#define END (1<<13) /* EOI or EOS detected */
#define SRQI (1<<12) /* SRQ detected by CIC */
#define RQS (1<<11) /* Device needs service */
#define CMPL (1<<8) /* I/O completed */
#define LOK (1<<7) /* Local lockout state */
#define REM (1<<6) /* Remote state */
#define CIC (1<<5) /* Controller-in-Charge */
#define ATN (1<<4) /* Attention asserted */
#define TACS (1<<3) /* Talker active */
#define LACS (1<<2) /* Listener active */
#define DTAS (1<<1) /* Device trigger state */
#define DCAS (1<<0) /* Device clear state */
/* Error messages returned in global variable iberr */
#define EDVR 0 /* System error */
#define ECIC 1 /* Function requires GPIB board to be CIC */
#define ENOL 2 /* Write function detected no Listeners */
#define EADR 3 /* Interface board not addressed correctly*/
#define EARG 4 /* Invalid argument to function call */
#define ESAC 5 /* Function requires GPIB board to be SAC */
#define EABO 6 /* I/O operation aborted */
#define ENEB 7 /* Non-existent interface board */
#define EDMA 8 /* Error performing DMA */
#define EOIP 10 /* I/O operation started before previous */
/* operation completed */
#define ECAP 11 /* No capability for intended operation */
#define EFSO 12 /* File system operation error */
#define EBUS 14 /* Command error during device call */
#define ESTB 15 /* Serial poll status byte lost */
#define ESRQ 16 /* SRQ remains asserted */
#define ETAB 20 /* The return buffer is full. */
#define ELCK 21 /* Address or board is locked. */
/* EOS mode bits */
#define BIN (1<<12) /* Eight bit compare */
#define XEOS (1<<11) /* Send END with EOS byte */
#define REOS (1<<10) /* Terminate read on EOS */
/* Timeout values and meanings */
#define TNONE 0 /* Infinite timeout (disabled) */
#define T10us 1 /* Timeout of 10 us (ideal) */
#define T30us 2 /* Timeout of 30 us (ideal) */
#define T100us 3 /* Timeout of 100 us (ideal) */
#define T300us 4 /* Timeout of 300 us (ideal) */
#define T1ms 5 /* Timeout of 1 ms (ideal) */
#define T3ms 6 /* Timeout of 3 ms (ideal) */
#define T10ms 7 /* Timeout of 10 ms (ideal) */
#define T30ms 8 /* Timeout of 30 ms (ideal) */
#define T100ms 9 /* Timeout of 100 ms (ideal) */
#define T300ms 10 /* Timeout of 300 ms (ideal) */
#define T1s 11 /* Timeout of 1 s (ideal) */
#define T3s 12 /* Timeout of 3 s (ideal) */
#define T10s 13 /* Timeout of 10 s (ideal) */
#define T30s 14 /* Timeout of 30 s (ideal) */
#define T100s 15 /* Timeout of 100 s (ideal) */
#define T300s 16 /* Timeout of 300 s (ideal) */
#define T1000s 17 /* Timeout of 1000 s (ideal) */
/* IBLN Constants */
#define NO_SAD 0
#define ALL_SAD -1
/* The following constants are used for the second parameter of the
* ibconfig function. They are the "option" selection codes.
*/
#define IbcPAD 0x0001 /* Primary Address */
#define IbcSAD 0x0002 /* Secondary Address */
#define IbcTMO 0x0003 /* Timeout Value */
#define IbcEOT 0x0004 /* Send EOI with last data byte? */
#define IbcPPC 0x0005 /* Parallel Poll Configure */
#define IbcREADDR 0x0006 /* Repeat Addressing */
#define IbcAUTOPOLL 0x0007 /* Disable Auto Serial Polling */
#define IbcCICPROT 0x0008 /* Use the CIC Protocol? */
#define IbcIRQ 0x0009 /* Use PIO for I/O */
#define IbcSC 0x000A /* Board is System Controller? */
#define IbcSRE 0x000B /* Assert SRE on device calls? */
#define IbcEOSrd 0x000C /* Terminate reads on EOS */
#define IbcEOSwrt 0x000D /* Send EOI with EOS character */
#define IbcEOScmp 0x000E /* Use 7 or 8-bit EOS compare */
#define IbcEOSchar 0x000F /* The EOS character. */
#define IbcPP2 0x0010 /* Use Parallel Poll Mode 2. */
#define IbcTIMING 0x0011 /* NORMAL, HIGH, or VERY_HIGH timing. */
#define IbcDMA 0x0012 /* Use DMA for I/O */
#define IbcReadAdjust 0x0013 /* Swap bytes during an ibrd. */
#define IbcWriteAdjust 0x014 /* Swap bytes during an ibwrt. */
#define IbcSendLLO 0x0017 /* Enable/disable the sending of LLO. */
#define IbcSPollTime 0x0018 /* Set the timeout value for serial polls. */
#define IbcPPollTime 0x0019 /* Set the parallel poll length period. */
#define IbcEndBitIsNormal 0x001A /* Remove EOS from END bit of IBSTA. */
#define IbcUnAddr 0x001B /* Enable/disable device unaddressing. */
#define IbcSignalNumber 0x001C /* Set UNIX signal number - unsupported */
#define IbcBlockIfLocked 0x001D /* Enable/disable blocking for locked boards/devices */
#define IbcHSCableLength 0x001F /* Length of cable specified for high speed timing.*/
#define IbcIst 0x0020 /* Set the IST bit. */
#define IbcRsv 0x0021 /* Set the RSV byte. */
/*
* Constants that can be used (in addition to the ibconfig constants)
* when calling the ibask() function.
*/
#define IbaPAD IbcPAD
#define IbaSAD IbcSAD
#define IbaTMO IbcTMO
#define IbaEOT IbcEOT
#define IbaPPC IbcPPC
#define IbaREADDR IbcREADDR
#define IbaAUTOPOLL IbcAUTOPOLL
#define IbaCICPROT IbcCICPROT
#define IbaIRQ IbcIRQ
#define IbaSC IbcSC
#define IbaSRE IbcSRE
#define IbaEOSrd IbcEOSrd
#define IbaEOSwrt IbcEOSwrt
#define IbaEOScmp IbcEOScmp
#define IbaEOSchar IbcEOSchar
#define IbaPP2 IbcPP2
#define IbaTIMING IbcTIMING
#define IbaDMA IbcDMA
#define IbaReadAdjust IbcReadAdjust
#define IbaWriteAdjust IbcWriteAdjust
#define IbaSendLLO IbcSendLLO
#define IbaSPollTime IbcSPollTime
#define IbaPPollTime IbcPPollTime
#define IbaEndBitIsNormal IbcEndBitIsNormal
#define IbaUnAddr IbcUnAddr
#define IbaSignalNumber IbcSignalNumber
#define IbaBlockIfLocked IbcBlockIfLocked
#define IbaHSCableLength IbcHSCableLength
#define IbaIst IbcIst
#define IbaRsv IbcRsv
#define IbaBNA 0x0200 /* A device's access board. */
/* Values used by the Send 488.2 command. */
#define NULLend 0x00 /* Do nothing at the end of a transfer.*/
#define NLend 0x01 /* Send NL with EOI after a transfer. */
#define DABend 0x02 /* Send EOI with the last DAB. */
/* Value used by the 488.2 Receive command.
*/
#define STOPend 0x0100
/* Address type (for 488.2 calls) */
typedef short Addr4882_t; /* System dependent: must be 16 bits */
/*
* This macro can be used to easily create an entry in address list
* that is required by many of the 488.2 functions. The primary address goes in the
* lower 8-bits and the secondary address goes in the upper 8-bits.
*/
#define MakeAddr(pad, sad) ((Addr4882_t)(((pad)&0xFF) | ((sad)<<8)))
/*
* This value is used to terminate an address list. It should be
* assigned to the last entry.
*/
#ifndef NOADDR
#define NOADDR (Addr4882_t)((unsigned short)0xFFFF)
#endif
/*
* The following two macros are used to "break apart" an address list
* entry. They take an unsigned integer and return either the primary
* or secondary address stored in the integer.
*/
#define GetPAD(val) ((val) & 0xFF)
#define GetSAD(val) (((val) >> 8) & 0xFF)
/* iblines constants */
#define ValidEOI (short)0x0080
#define ValidATN (short)0x0040
#define ValidSRQ (short)0x0020
#define ValidREN (short)0x0010
#define ValidIFC (short)0x0008
#define ValidNRFD (short)0x0004
#define ValidNDAC (short)0x0002
#define ValidDAV (short)0x0001
#define BusEOI (short)0x8000
#define BusATN (short)0x4000
#define BusSRQ (short)0x2000
#define BusREN (short)0x1000
#define BusIFC (short)0x0800
#define BusNRFD (short)0x0400
#define BusNDAC (short)0x0200
#define BusDAV (short)0x0100
/****
**** typedef for ibnotify callback ****
****/
typedef int (__stdcall * GpibNotifyCallback_t)(int, int, int, long, PVOID);
#define IBNOTIFY_REARM_FAILED 0xE00A003F
/*************************************************************************/
/* */
/* iblockx and ibunlockx definitions --- for use with GPIB-ENET only */
/* */
/*************************************************************************/
#define TIMMEDIATE -1
#define TINFINITE -2
#define MAX_LOCKSHARENAME_LENGTH 64
#if defined(UNICODE)
#define iblockx iblockxW
#else
#define iblockx iblockxA
#endif
extern int __stdcall iblockxA (int ud, int LockWaitTime, PCHAR LockShareName);
extern int __stdcall iblockxW (int ud, int LockWaitTime, PWCHAR LockShareName);
extern int __stdcall ibunlockx (int ud);
/***************************************************************************/
/* IBSTA, IBERR, IBCNT, IBCNTL and FUNCTION PROTOTYPES */
/* ( only included if not accessing the 32-bit DLL directly ) */
/***************************************************************************/
#if !defined(GPIB_DIRECT_ACCESS)
/*
* Set up access to the user variables (ibsta, iberr, ibcnt, ibcntl).
* These are declared and exported by the 32-bit DLL. Separate copies
* exist for each process that accesses the DLL. They are shared by
* multiple threads of a single process.
*/
extern int ibsta;
extern int iberr;
extern int ibcnt;
extern long ibcntl;
#if defined(UNICODE)
#define ibbna ibbnaW
#define ibfind ibfindW
#define ibrdf ibrdfW
#define ibwrtf ibwrtfW
#else
#define ibbna ibbnaA
#define ibfind ibfindA
#define ibrdf ibrdfA
#define ibwrtf ibwrtfA
#endif
/*
* Extern 32-bit GPIB DLL functions
*/
/* NI-488 Function Prototypes */
extern int __stdcall ibfindA (LPCSTR udname);
extern int __stdcall ibbnaA (int ud, LPCSTR udname);
extern int __stdcall ibrdfA (int ud, LPCSTR filename);
extern int __stdcall ibwrtfA (int ud, LPCSTR filename);
extern int __stdcall ibfindW (LPCWSTR udname);
extern int __stdcall ibbnaW (int ud, LPCWSTR udname);
extern int __stdcall ibrdfW (int ud, LPCWSTR filename);
extern int __stdcall ibwrtfW (int ud, LPCWSTR filename);
extern int __stdcall ibask (int ud, int option, PINT v);
extern int __stdcall ibcac (int ud, int v);
extern int __stdcall ibclr (int ud);
extern int __stdcall ibcmd (int ud, PVOID buf, long cnt);
extern int __stdcall ibcmda (int ud, PVOID buf, long cnt);
extern int __stdcall ibconfig (int ud, int option, int v);
extern int __stdcall ibdev (int ud, int pad, int sad, int tmo, int eot, int eos);
extern int __stdcall ibdiag (int ud, PVOID buf, long cnt);
extern int __stdcall ibdma (int ud, int v);
extern int __stdcall ibeos (int ud, int v);
extern int __stdcall ibeot (int ud, int v);
extern int __stdcall ibgts (int ud, int v);
extern int __stdcall ibist (int ud, int v);
extern int __stdcall iblines (int ud, PSHORT result);
extern int __stdcall ibln (int ud, int pad, int sad, PSHORT listen);
extern int __stdcall ibloc (int ud);
extern int __stdcall ibnotify (int ud, int mask, GpibNotifyCallback_t Callback, PVOID RefData);
extern int __stdcall ibonl (int ud, int v);
extern int __stdcall ibpad (int ud, int v);
extern int __stdcall ibpct (int ud);
extern int __stdcall ibpoke (int ud, long option, long v);
extern int __stdcall ibppc (int ud, int v);
extern int __stdcall ibrd (int ud, PVOID buf, long cnt);
extern int __stdcall ibrda (int ud, PVOID buf, long cnt);
extern int __stdcall ibrpp (int ud, PCHAR ppr);
extern int __stdcall ibrsc (int ud, int v);
extern int __stdcall ibrsp (int ud, PCHAR spr);
extern int __stdcall ibrsv (int ud, int v);
extern int __stdcall ibsad (int ud, int v);
extern int __stdcall ibsic (int ud);
extern int __stdcall ibsre (int ud, int v);
extern int __stdcall ibstop (int ud);
extern int __stdcall ibtmo (int ud, int v);
extern int __stdcall ibtrg (int ud);
extern int __stdcall ibwait (int ud, int mask);
extern int __stdcall ibwrt (int ud, PVOID buf, long cnt);
extern int __stdcall ibwrta (int ud, PVOID buf, long cnt);
// GPIB-ENET only functions to support locking across machines
extern int __stdcall iblock (int ud);
extern int __stdcall ibunlock (int ud);
/**************************************************************************/
/* Functions to access Thread-Specific copies of the GPIB global vars */
extern int __stdcall ThreadIbsta (void);
extern int __stdcall ThreadIberr (void);
extern int __stdcall ThreadIbcnt (void);
extern long __stdcall ThreadIbcntl (void);
/**************************************************************************/
/* NI-488.2 Function Prototypes */
extern void __stdcall AllSpoll (int boardID, Addr4882_t * addrlist, PSHORT results);
extern void __stdcall DevClear (int boardID, Addr4882_t addr);
extern void __stdcall DevClearList (int boardID, Addr4882_t * addrlist);
extern void __stdcall EnableLocal (int boardID, Addr4882_t * addrlist);
extern void __stdcall EnableRemote (int boardID, Addr4882_t * addrlist);
extern void __stdcall FindLstn (int boardID, Addr4882_t * addrlist, PSHORT results, int limit);
extern void __stdcall FindRQS (int boardID, Addr4882_t * addrlist, PSHORT dev_stat);
extern void __stdcall PPoll (int boardID, PSHORT result);
extern void __stdcall PPollConfig (int boardID, Addr4882_t addr, int dataLine, int lineSense);
extern void __stdcall PPollUnconfig (int boardID, Addr4882_t * addrlist);
extern void __stdcall PassControl (int boardID, Addr4882_t addr);
extern void __stdcall RcvRespMsg (int boardID, PVOID buffer, long cnt, int Termination);
extern void __stdcall ReadStatusByte(int boardID, Addr4882_t addr, PSHORT result);
extern void __stdcall Receive (int boardID, Addr4882_t addr, PVOID buffer, long cnt, int Termination);
extern void __stdcall ReceiveSetup (int boardID, Addr4882_t addr);
extern void __stdcall ResetSys (int boardID, Addr4882_t * addrlist);
extern void __stdcall Send (int boardID, Addr4882_t addr, PVOID databuf, long datacnt, int eotMode);
extern void __stdcall SendCmds (int boardID, PVOID buffer, long cnt);
extern void __stdcall SendDataBytes (int boardID, PVOID buffer, long cnt, int eot_mode);
extern void __stdcall SendIFC (int boardID);
extern void __stdcall SendLLO (int boardID);
extern void __stdcall SendList (int boardID, Addr4882_t * addrlist, PVOID databuf, long datacnt, int eotMode);
extern void __stdcall SendSetup (int boardID, Addr4882_t * addrlist);
extern void __stdcall SetRWLS (int boardID, Addr4882_t * addrlist);
extern void __stdcall TestSRQ (int boardID, PSHORT result);
extern void __stdcall TestSys (int boardID, Addr4882_t * addrlist, PSHORT results);
extern void __stdcall Trigger (int boardID, Addr4882_t addr);
extern void __stdcall TriggerList (int boardID, Addr4882_t * addrlist);
extern void __stdcall WaitSRQ (int boardID, PSHORT result);
#endif
#ifdef __cplusplus
}
#endif
#endif // DECL_32_H
/*
LINK : fatal error LNK1104: cannot open file "nafxcwd.lib"
*/
#include "stdafx.h"
#include "devMFC.h"
#include "devMFCDlg.h"
#include "..\\decl-32.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
int ReadingsTaken; // ADDED- counter for readings taken.
int ud; // ADDED- variable for unit descriptor.
void gpiberr(char *); // ADDED- function prototype for gpiberr.
void dvmerr(char *, char); // ADDED- function prototype for dvmerr.
// ADDED- For writing strings to the List Box (Fluke 45 Readings).
void DDX_ListText(CDataExchange *pDX, UINT nID, CStringList *pCStringList);
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
CButton m_AboutBox;
//}}AFX_DATA
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL
// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
DDX_Control(pDX, IDOK, m_AboutBox);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CDevMFCDlg dialog
CDevMFCDlg::CDevMFCDlg(CWnd* pParent /*=NULL*/)
: CDialog(CDevMFCDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CDevMFCDlg)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CDevMFCDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CDevMFCDlg)
// NOTE: the ClassWizard will add DDX and DDV calls here
//}}AFX_DATA_MAP
// ADDED- function used to display the Fluke 45 multimeter
// readings to the List Box control.
DDX_ListText(pDX, IDC_LIST1, &m_ListReadings);
}
BEGIN_MESSAGE_MAP(CDevMFCDlg, CDialog)
//{{AFX_MSG_MAP(CDevMFCDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDOK, OnRun)
ON_BN_CLICKED(ID_APP_ABOUT, OnAppAbout)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CDevMFCDlg message handlers
BOOL CDevMFCDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// Add "About..." menu item to system menu.
// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon
// TODO: Add extra initialization here
return TRUE; // return TRUE unless you set the focus to a control
}
void CDevMFCDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.
void CDevMFCDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CDevMFCDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CDevMFCDlg::OnCancel()
{
// TODO: Add extra cleanup here
CDialog::OnCancel();
}
// ADDED- In this sample program, when the Run button is clicked, it
// will execute the code contained in this function. For the
// purposes of this example, it will initialize the Fluke 45
// Digital Multimeter and get 10 measurements from the Fluke.
void CDevMFCDlg::OnRun()
{
char SpollByte;
char ReadBuffer[10];
char str[100];
// If not already cleared, clear the List Box of all the
// Fluke 45 measurements that are currently displayed.
if (!m_ListReadings.IsEmpty())
m_ListReadings.RemoveAll();
// Assign a unique identifier to the device and store it in the
// variable ud. ibdev opens an available device and assigns it
// to access GPIB0 with a primary address of 1, a secondary
// address of 0, a timeout of 10 seconds, the END message
// enabled, and the EOS mode disabled. If ud is less than zero,
// then print an error message that the call failed and exit
// the program.
ud = ibdev (0, // connect board
1, // primary address of GPIB device
0, // secondary address of GPIB device
T10s, // ten second I/O timeout
1, // EOT mode turned on
0 // EOS node disabled
);
if (ud < 0)
{
gpiberr("ibdev Error");
return;
}
// Clear the internal or device functions of the Fluke 45. If
// the error bit ERR is set in IBSTA, call GPIBERR with an
// error message.
ibclr (ud);
if (ibsta & ERR)
{
gpiberr("ibclr Error");
return;
}
// Reset the Fluke 45 by issuing the reset (*RST) command.
// Instruct the Fluke 45 to measure the volts alternating
// current (VAC) using auto-ranging (AUTO), to wait for a
// trigger from the GPIB interface board (TRIGGER 2), and to
// assert the IEEE-488 Service Request line, SRQ, when the
// measurement has been completed and the Fluke 45 is ready to
// send the result (*SRE 16). If the error bit ERR is set in
// IBSTA, call GPIBERR with an error message.
ibwrt (ud,"*RST; VAC; AUTO; TRIGGER 2; *SRE 16", 35L);
if (ibsta & ERR)
{
gpiberr("ibwrt Error");
return;
}
for (ReadingsTaken = 0; ReadingsTaken < 10; ReadingsTaken++)
{
// Trigger the Fluke 45. If the error bit ERR is set in IBSTA,
// call GPIBERR with an error message.
ibtrg (ud);
if (ibsta & ERR)
{
gpiberr("ibtrg Error");
return;
}
// Request the triggered measurement by sending the instruction
// "VAL1?". If the error bit ERR is set in IBSTA, call GPIBERR
// with an error message.
ibwrt (ud,"VAL1?", 5L);
if (ibsta & ERR)
{
gpiberr("ibwrt Error");
return;
}
// Wait for the Fluke 45 to request service (RQS) or wait for the
// Fluke 45 to timeout (TIMO). The default timeout period is 10
// seconds. RQS is detected by bit position 11 (hex 800). TIMO is
// detected by bit position 14 (hex 4000). These status bits are
// listed under the NI-488 function IBWAIT in the Software Reference
// Manual. If the error bit ERR or the timeout bit TIMO is set in
// IBSTA, call GPIBERR with an error message.
ibwait (ud,TIMO|RQS);
if (ibsta & (ERR|TIMO)) gpiberr("ibwait Error");
// Read the Fluke 45 serial poll status byte. If the error bit
// ERR is set in IBSTA, call GPIBERR with an error message.
ibrsp (ud, &SpollByte);
if (ibsta & ERR)
{
gpiberr("ibrsp Error");
return;
}
// If the returned status byte is hex 50, the Fluke 45 has
// valid data to send; otherwise, it has a fault condition to
// report. If the status byte is not hex 50, call DVMERR with
// an error message.
if (SpollByte != 0x50)
{
dvmerr("Fluke 45 Error", SpollByte);
return;
}
// Read the Fluke 45 measurement. If the error bit ERR is set
// in IBSTA, call GPIBERR with an error message.
ibrd (ud, ReadBuffer, 10L);
if (ibsta & ERR)
{
gpiberr("ibrd Error");
return;
}
// Use the null character to mark the end of the data received
// in the array ReadBuffer. Print the measurement received
// from the Fluke 45.
ReadBuffer[ibcntl - 1] = '\0';
sprintf(str, "Measurement #%2d ===> %s", ReadingsTaken + 1, ReadBuffer);
m_ListReadings.AddTail(str);
// Update the List Box containing the Fluke 45 measurements.
UpdateData(FALSE);
UpdateWindow();
}
// Take the device offline.
ibonl(ud, 0);
}
// ADDED- This function will alert you that a NI-488 function failed
// by printing an error message. The status variable IBSTA
// will also be printed in hexadecimal along with the
// mnemonic meaning of the bit position. The status variable
// IBERR will be printed in decimal along with the mnemonic
// meaning of the decimal value. The status variable IBCNTL
// will be printed in decimal.
//
// The NI-488 function IBONL is called to disable the
// hardware and software.
void gpiberr(char *msg)
{
char str[100];
char tempbuf[20];
// Start the Message with the failing GPIB call.
sprintf(str, msg);
// Add ibsta information to the Message String.
strcat(str, " ibsta = &H");
itoa(ibsta, tempbuf, 16);
strcat(str, tempbuf);
strcat(str, " <");
if (ibsta & ERR ) strcat(str, " ERR");
if (ibsta & TIMO) strcat(str, " TIMO");
if (ibsta & END ) strcat(str, " END");
if (ibsta & SRQI) strcat(str, " SRQI");
if (ibsta & RQS ) strcat(str, " RQS");
if (ibsta & CMPL) strcat(str, " CMPL");
if (ibsta & LOK ) strcat(str, " LOK");
if (ibsta & REM ) strcat(str, " REM");
if (ibsta & CIC ) strcat(str, " CIC");
if (ibsta & ATN ) strcat(str, " ATN");
if (ibsta & TACS) strcat(str, " TACS");
if (ibsta & LACS) strcat(str, " LACS");
if (ibsta & DTAS) strcat(str, " DTAS");
if (ibsta & DCAS) strcat(str, " DCAS");
strcat(str, " >");
// Add iberr information to the Message String.
strcat(str, "\niberr = ");
itoa(iberr, tempbuf, 10);
strcat(str, tempbuf);
if (iberr == EDVR) strcat(str, " EDVR <DOS Error>");
if (iberr == ECIC) strcat(str, " ECIC <Not CIC>");
if (iberr == ENOL) strcat(str, " ENOL <No Listener>");
if (iberr == EADR) strcat(str, " EADR <Address error>");
if (iberr == EARG) strcat(str, " EARG <Invalid argument>");
if (iberr == ESAC) strcat(str, " ESAC <Not Sys Ctrlr>");
if (iberr == EABO) strcat(str, " EABO <Op. aborted>");
if (iberr == ENEB) strcat(str, " ENEB <No GPIB board>");
if (iberr == EOIP) strcat(str, " EOIP <Async I/O in prg>");
if (iberr == ECAP) strcat(str, " ECAP <No capability>");
if (iberr == EFSO) strcat(str, " EFSO <File sys. error>");
if (iberr == EBUS) strcat(str, " EBUS <Command error>");
if (iberr == ESTB) strcat(str, " ESTB <Status byte lost>");
if (iberr == ESRQ) strcat(str, " ESRQ <SRQ stuck on>");
if (iberr == ETAB) strcat(str, " ETAB <Table Overflow>");
// Add ibcntl information to the Message String.
strcat(str, "\nibcntl = ");
ultoa(ibcntl, tempbuf, 16);
strcat(str, tempbuf);
AfxMessageBox(str, MB_ICONSTOP, 0);
// Take the device offline
ibonl(ud, 0);
}
// ADDED- This function will alert you that the Fluke 45 returned
// an invalid serial poll response byte. The error message
// will be printed along with the serial poll response byte.
//
// The NI-488 function IBONL is called to disable the
// hardware and software.
void dvmerr(char *msg, char spr)
{
char str[80];
sprintf (str, "%s\nStatus byte = 0x%X", msg, spr);
AfxMessageBox(str, MB_ICONSTOP, 0);
// Take the device offline.
ibonl(ud, 0);
}
// ADDED- this function is used to display the Fluke 45 readings in
// the List Box control.
void DDX_ListText(CDataExchange *pDX, UINT nID, CStringList *pCStringList)
{
if (!pDX->m_bSaveAndValidate)
{
int i;
POSITION pos;
pDX->PrepareCtrl(nID);
if (pCStringList != NULL)
{
CListBox *pListBox = (CListBox *)pDX->m_pDlgWnd->GetDlgItem(nID);
pListBox->ResetContent();
for (i = 0, pos = pCStringList->GetHeadPosition(); pos != NULL; i++)
{
pListBox->InsertString(i, pCStringList->GetNext(pos));
}
}
}
}
void CDevMFCDlg::OnAppAbout()
{
// ADDED- Invoke the About Box when the Help Button is pressed.
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
