Merge pull request #66 from aclary100-bit/main

Detect Service Request on Sweep Done with 2600B or 2600A trigger models

Author: Little-LIZard

Instrument_Examples/Series_2600/Sweeps/ServiceRequest_SweepDone/Detect End of a Sweep with 2600B Model Brief.pdf

@@ -0,0 +1,104 @@
+Option Explicit On
+
+Imports Ivi.Visa
+Imports NationalInstruments.Visa
+Imports System.Text
+
+Public Class Form1
+
+    'Go to Project > Add Reference > Browse
+    'Locate And add NationalInstruments.Visa.dll
+    '(usually found in C:\Program Files\IVI Foundation\VISA\Visa.NET Shared Components)
+    '
+    'Also include Ivi.Visa.Interop.dll and Ivi.Visa.dll
+
+    'Microsoft Visual Studio Community 2022 (64-bit) - Current Version 17.11.4
+    'NI VISA 2025
+    'Win11
+    'Any 2600A or 2600B model but used 2636B, firmware 4.0.5
+    '
+
+
+
+    Private rm As ResourceManager
+    Private mbSession As MessageBasedSession
+    Dim response As String
+
+    Dim Resource As String = "TCPIP0::192.168.0.52::INSTR"
+
+    Dim eventOccured As Boolean = False
+    Dim statusByte As Short
+
+    Dim commandList As New List(Of String) From {"reset()",
+                                                 "errorqueue.clear()",
+                                                 "status.reset()",
+                                                 "status.operation.enable = status.operation.SWEEPING",
+                                                 "status.operation.sweeping.enable = status.operation.sweeping.SMUA",
+                                                 "status.operation.sweeping.ptr = 0",
+                                                 "status.operation.sweeping.ntr = status.operation.sweeping.SMUA",
+                                                 "status.node_enable = status.OSB",
+                                                 "status.request_enable = status.OSB",
+                                                 "smua.nvbuffer1.clear()",
+                                                 "smua.nvbuffer1.appendmode = 1",
+                                                 "smua.nvbuffer1.collectsourcevalues = 1",
+                                                 "smua.nvbuffer2.clear()",
+                                                 "smua.nvbuffer2.appendmode = 1",
+                                                 "smua.nvbuffer2.collectsourcevalues = 1",
+                                                 "smua.measure.delay = 0.1",    'slow down the sweep
+                                                 "smua.trigger.source.action = smua.ENABLE",
+                                                 "smua.trigger.source.linearv(-1.0, 1.0, 21)",
+                                                 "smua.trigger.count = 21",   ' make tthis same and number of source values
+                                                 "smua.trigger.measure.action = smua.ENABLE",
+                                                 "smua.trigger.measure.iv(smua.nvbuffer1, smua.nvbuffer2)",
+                                                 "smua.source.output = 1",
+                                                 "smua.trigger.initiate()"}
+
+
+    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
+
+        rm = New ResourceManager()
+
+        mbSession = rm.Open(Resource)
+        mbSession.TerminationCharacter = &H10 ' line feed in hex for Byte data type
+        mbSession.TerminationCharacterEnabled = True  ' add LF terminator to each write
+
+        mbSession.RawIO.Write("*idn?")
+        TextBox1.Text = mbSession.RawIO.ReadString()
+
+
+        For Each cmd As String In commandList
+            mbSession.RawIO.Write(cmd)
+        Next
+
+        ' poll until the SRQ is asserted at Sweep completion
+        statusByte = mbSession.ReadStatusByte()
+        Debug.Print(statusByte)
+        Do While ((statusByte And 64) <> 64)   ' 64 = 2^6 = MSS bit in status.conditon register = 1
+            statusByte = mbSession.ReadStatusByte()
+            Application.DoEvents()
+            Debug.Print(statusByte)
+            Threading.Thread.Sleep(100)
+        Loop
+
+
+        mbSession.RawIO.Write("smua.source.output = 0")
+        mbSession.RawIO.Write("status.reset()")
+
+        mbSession.RawIO.Write("beeper.beep(0.5, 1200)")  ' duration and freq of beep
+        Threading.Thread.Sleep(500)
+
+
+        mbSession.RawIO.Write("printbuffer(1, smua.nvbuffer1.n, smua.nvbuffer1.readings, smua.nvbuffer1.sourcevalues)")
+        Dim rawData As String = mbSession.RawIO.ReadString()
+        Debug.Print(rawData)
+
+        mbSession.Clear()
+
+        mbSession.Dispose()
+        rm.Dispose()
+
+        TextBox1.Text = "All Done"
+
+
+    End Sub
+End Class