VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   4305
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   12690
   LinkTopic       =   "Form1"
   ScaleHeight     =   4305
   ScaleWidth      =   12690
   StartUpPosition =   3  'Windows Default
   Begin VB.Timer Timer1 
      Enabled         =   0   'False
      Interval        =   1000
      Left            =   0
      Top             =   0
   End
   Begin VB.CommandButton Command1 
      Caption         =   "Start"
      Height          =   375
      Left            =   5520
      TabIndex        =   28
      Top             =   3600
      Width           =   1575
   End
   Begin VB.TextBox freqEdit 
      Height          =   285
      Index           =   12
      Left            =   11280
      TabIndex        =   15
      Text            =   "Text1"
      Top             =   1200
      Width           =   735
   End
   Begin VB.TextBox freqEdit 
      Height          =   285
      Index           =   11
      Left            =   10440
      TabIndex        =   14
      Text            =   "Text1"
      Top             =   1200
      Width           =   735
   End
   Begin VB.TextBox freqEdit 
      Height          =   285
      Index           =   10
      Left            =   9600
      TabIndex        =   13
      Text            =   "Text1"
      Top             =   1200
      Width           =   735
   End
   Begin VB.TextBox freqEdit 
      Height          =   285
      Index           =   9
      Left            =   8760
      TabIndex        =   12
      Text            =   "Text1"
      Top             =   1200
      Width           =   735
   End
   Begin VB.TextBox freqEdit 
      Height          =   285
      Index           =   8
      Left            =   7920
      TabIndex        =   11
      Text            =   "Text1"
      Top             =   1200
      Width           =   735
   End
   Begin VB.TextBox freqEdit 
      Height          =   285
      Index           =   7
      Left            =   7080
      TabIndex        =   10
      Text            =   "Text1"
      Top             =   1200
      Width           =   735
   End
   Begin VB.TextBox freqEdit 
      Height          =   285
      Index           =   6
      Left            =   6240
      TabIndex        =   9
      Text            =   "Text1"
      Top             =   1200
      Width           =   735
   End
   Begin VB.TextBox freqEdit 
      Height          =   285
      Index           =   5
      Left            =   5400
      TabIndex        =   8
      Text            =   "Text1"
      Top             =   1200
      Width           =   735
   End
   Begin VB.TextBox freqEdit 
      Height          =   285
      Index           =   4
      Left            =   4560
      TabIndex        =   7
      Text            =   "Text1"
      Top             =   1200
      Width           =   735
   End
   Begin VB.TextBox freqEdit 
      Height          =   285
      Index           =   3
      Left            =   3720
      TabIndex        =   6
      Text            =   "Text1"
      Top             =   1200
      Width           =   735
   End
   Begin VB.TextBox freqEdit 
      Height          =   285
      Index           =   2
      Left            =   2880
      TabIndex        =   5
      Text            =   "Text1"
      Top             =   1200
      Width           =   735
   End
   Begin VB.TextBox freqEdit 
      Height          =   285
      Index           =   1
      Left            =   2040
      TabIndex        =   4
      Text            =   "Text1"
      Top             =   1200
      Width           =   735
   End
   Begin VB.TextBox freqEdit 
      Height          =   285
      Index           =   0
      Left            =   1200
      TabIndex        =   3
      Text            =   "Text1"
      Top             =   1200
      Width           =   735
   End
   Begin VB.Label Label15 
      Caption         =   "12"
      Height          =   255
      Left            =   11520
      TabIndex        =   27
      Top             =   720
      Width           =   255
   End
   Begin VB.Label Label14 
      Caption         =   "11"
      Height          =   255
      Left            =   10680
      TabIndex        =   26
      Top             =   720
      Width           =   255
   End
   Begin VB.Label Label13 
      Caption         =   "10"
      Height          =   255
      Left            =   9840
      TabIndex        =   25
      Top             =   720
      Width           =   255
   End
   Begin VB.Label Label12 
      Caption         =   "9"
      Height          =   255
      Left            =   9000
      TabIndex        =   24
      Top             =   720
      Width           =   135
   End
   Begin VB.Label Label11 
      Caption         =   "8"
      Height          =   255
      Left            =   8160
      TabIndex        =   23
      Top             =   720
      Width           =   135
   End
   Begin VB.Label Label10 
      Caption         =   "7"
      Height          =   255
      Left            =   7320
      TabIndex        =   22
      Top             =   720
      Width           =   135
   End
   Begin VB.Label Label9 
      Caption         =   "6"
      Height          =   255
      Left            =   6480
      TabIndex        =   21
      Top             =   720
      Width           =   135
   End
   Begin VB.Label Label8 
      Caption         =   "5"
      Height          =   255
      Left            =   5640
      TabIndex        =   20
      Top             =   720
      Width           =   135
   End
   Begin VB.Label Label7 
      Caption         =   "4"
      Height          =   255
      Left            =   4800
      TabIndex        =   19
      Top             =   720
      Width           =   135
   End
   Begin VB.Label Label6 
      Caption         =   "3"
      Height          =   255
      Left            =   3960
      TabIndex        =   18
      Top             =   720
      Width           =   135
   End
   Begin VB.Label Label5 
      Caption         =   "2"
      Height          =   255
      Left            =   3120
      TabIndex        =   17
      Top             =   720
      Width           =   135
   End
   Begin VB.Label Label4 
      Caption         =   "1"
      Height          =   255
      Left            =   2280
      TabIndex        =   16
      Top             =   720
      Width           =   135
   End
   Begin VB.Label Label3 
      Caption         =   "0"
      Height          =   255
      Left            =   1440
      TabIndex        =   2
      Top             =   720
      Width           =   135
   End
   Begin VB.Label Label2 
      Caption         =   "Frequency"
      Height          =   255
      Left            =   120
      TabIndex        =   1
      Top             =   1200
      Width           =   855
   End
   Begin VB.Label Label1 
      Caption         =   "Counter"
      Height          =   255
      Left            =   360
      TabIndex        =   0
      Top             =   720
      Width           =   615
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Public DeviceIndex As Long
Public DetectOK As Boolean

Private Sub Command1_Click()
    Dim count As Integer
    
    
    'set counter 13 low so it will not be gating the other counters yet
    
    CTR_8254Mode DeviceIndex, 0, 13, 0
    CTR_8254Mode DeviceIndex, 0, 14, 0
        
    For count = 0 To 12
        CTR_8254ModeLoad DeviceIndex, 0, count, 2, -1
    Next count
    
    'we are putting counters 13 and 14 together to create 1
    ' 32 bit counter. Loading them with 10,000 and 1,000 gives
    ' a total divisor of 10,000,000 and a frequency of 1 Hz
    ' this results in a known gate signal of .5 seconds
    
    
    CTR_8254ModeLoad DeviceIndex, 0, 13, 3, 10000
    CTR_8254ModeLoad DeviceIndex, 0, 14, 2, 1000
    
    CTR_8254SelectGate DeviceIndex, 13
    
    Timer1.Enabled = True

End Sub


Private Sub Form_Load()
  Dim OutMask As Byte
  Dim I As Integer
  Dim Status As Long
  
  DeviceIndex = diOnly
  
  Status = CTR_8254Mode(DeviceIndex, 0, 0, 0)
  
  If Status <> 0 Then
    Call DetectForm.Show(vbModal, Me)
    If DetectOK = False Then
      Unload Me
      Exit Sub
    End If
   End If
  
End Sub

Private Sub Timer1_Timer()

    Dim values(15) As Integer
    Dim count As Integer
    Dim Status As Long
    Dim temp As Long
        
    values(15) = 1
        
    CTR_8254ReadLatched DeviceIndex, values(0)
    
    If values(15) <> 0 Then 'if the last one is 0 there is no new data to grab

        'The screwed up math inside this for loop is because VB sucks
        'and doesn't have unsigned types
    
        For count = 0 To 12
            temp = values(count)
            temp = temp And &HFFFF&
            
            freqEdit(count).Text = (65535 - temp) / 0.5
        Next count
    
    End If
        

End Sub