GPIB-VC编程-蒲公英云

GPIB-VC编程

桃扇骨 2022-07-15 01:45 235阅读 0赞

Compiling and Linking VISA Programs (C/C++)
This section provides a summary of important compiler- specific considerations when developing Win32 applications.
1 . Linking to VISA Libraries
Your application must link to the VISA import library as follows, assuming default installation directories and Microsoft compilers:
C:\Program Files\VISA\winnt\lib\msc\visa32.lib The following steps will help you do this. This information is specific to your development

environment.
Microsoft Visual C++ Version 6.0 Development Environment
1 Use the File menu to create a new project or open an existing project.
2 Select Project > Settings from the menu and click the C/C++ tab.
3 Select Code Generation from the Category list box and select Multi-Threaded using DLL from the Use Run-Time Libraries list box. (VISA requires these definitions for Win32.) Click OK to close the dialog box.
4 Select Project > Settings from the menu. Click the Link tab and add visa32.lib to the Object/Library Modules list box. Optionally, you may add the library directly to your project file. Click OK to close the dialog box.
5 You may want to add the include files and library files
search paths. They are set as follows:
• Select Tools > Options from the menu.
• Click the Directories tab to set the include file path.
• Select Include Files from the Show Directories For list box.
• Click at the bottom of the list box and type:
C:\Program Files\VISA\winnt\include
(This assumes that you used the default installation
location for VISA.)
• Select Library Files from the Show Directories For list box.
• Click at the bottom of the list box and type:
C:\Program Files\VISA\winnt\lib\msc
(This assumes that you used the default installation
location for VISA.)
6 Add or create your C or C++ source files. For example, to build the sample described below, select Project > Add to Project > Files… and type or browse to C:\Program Files\Agilent\IO Libraries Suite\ ProgrammingSamples\C\VISA\idn.c.
7 Click Build > Rebuild All to build the VISA program.

示例：电源型号:Agilent GPIB线开发环境为VS2010

1.首先安装GPIB驱动，驱动安装文件比较大，请自行下载安装，我用的NI驱动

2.编写一个Win32程序，实现打开和关闭电源的功能。
主要代码如下：

//包含VISA头文件和库文件
#include "WinNT//include//visa.h"                               
#pragma comment(lib, "WinNT//lib//msc//visa32.lib")

电源初始化函数

BOOL CXXXDlg::InitPower()
{
    char chStatusDesc[_MAX_DIR] = {0};
    int retCnt=0;    
    char instrDesc[100]={0};    
    ViFindList find_list;    
    float voltSetting, currSetting;
    voltSetting = atof(ini_powervolt);
    currSetting = atof(ini_powercurrent);
    VISAstatus=viOpenDefaultRM(&defrm);
    if (VISAstatus != VI_SUCCESS)
    {
        return FALSE;
    }
    VISAstatus = viFindRsrc(defrm,"GPIB?*INSTR",&find_list,(ViPUInt32)&retCnt, instrDesc);
    VISAstatus=viOpen(defrm,instrDesc, VI_NULL, VI_NULL, &session);
    if (VISAstatus!=VI_SUCCESS)
    {
        return FALSE;
    }
    //Set voltage
    viPrintf(session,"VOLT %f \n",voltSetting);
    //Set current level
    viPrintf(session,"CURR %f \n",currSetting);
    return TRUE;
}

打开电源

void CXXXDlg::OnBnClickedBtnPowerOn()
{
    if (!InitPower())
    {
        AfxMessageBox("Init Power Fail,Please Check the GPIB Connected!");
        return;
    }
    viPrintf(session,"OUTP ON \n");
}

关闭电源

void CXXXDlg::OnBnClickedBtnPoweroff()
{
    if (!InitPower())
    {
        AfxMessageBox("Init Power Fail,Please Check the GPIB Connected!");
        return;
    }
    viPrintf(session,"OUTP OFF \n");
}