private void button4_Click(object sender, EventArgs e)
{
int nGpibAddr = 0;
int error = 0;
nGpibAddr = (Int32)GPIBNum.Value;
string strResource = "GPIB0::" + nGpibAddr + "::INSTR"; // GPIB1 to GPIB0
if (button4.Text == "打开") //用户要连接N3300A
{
error = N3300A_Driver.Connect_N3300A(strResource);
if (error < 0)
{
CCommonFuncs.ShowHintInfor(eHintInfoType.error, "N3300A连接失败！");
button4.Text = "打开";
}
else
{
button4.Text = "关闭";
}
}
else//断开万用表
{
N3300A_Driver.Close();
button4.Text = "打开";
}
}
public void bgWork_doWork(object sender, DoWorkEventArgs e)
{
int error;
double reVolValue = 0;
double reEleValue = 0;
double ResistValue = (double)resistValue.Value;
int circleNum = (int)CycNums.Value;
bgWork.ReportProgress(10);
#region 执行N3300A指令
error = N3300A_Driver.Reset();
error = N3300A_Driver.CLS();
error = N3300A_Driver.SetWorkMode();
if (error < 0)
{
MessageBox.Show("命令出错！");
return;
}
error = N3300A_Driver.SetElectProtect();
if (error < 0)
{
MessageBox.Show("命令出错！");
return;
}
error = N3300A_Driver.SetStartProtectfeature();
if (error < 0)
{
MessageBox.Show("命令出错！");
return;
}
error = N3300A_Driver.SelectResistanceRange();
if (error < 0)
{
MessageBox.Show("命令出错！");
return;
}
error = N3300A_Driver.SetResistanceLevel(ResistValue);
if (error < 0)
{
MessageBox.Show("命令出错！");
return;
}
error = N3300A_Driver.SetOpenInput();
if (error < 0)
{
MessageBox.Show("命令出错！");
return;
}
#endregion
for (int i = 0; i < circleNum; i++)
{
error = N3300A_Driver.GetVoltageValue(ref reVolValue, ref reEleValue);
if (error >= 0)
{
yVol[i] = reVolValue;
yEle[i] = reEleValue;
// chart1.Series[0].Points.AddXY(i, reVolValue, reEleValue);
if (circleNum >= 100)
{
bgWork.ReportProgress(40);
}
else
{
bgWork.ReportProgress(i);
}
}
else
{
MessageBox.Show("命令出错！");
return;
}
}
}
