steppermotor.frm

PC端的USB主机源代码

VERSION 5.00
Begin VB.Form DisplayWindow 
   BackColor       =   &H00FF8080&
   Caption         =   "USB Design By Example: Thermometer Examples"
   ClientHeight    =   5595
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   8475
   FillColor       =   &H00FFFFFF&
   FillStyle       =   0  'Solid
   LinkTopic       =   "Form1"
   ScaleHeight     =   5595
   ScaleWidth      =   8475
   StartUpPosition =   3  'Windows Default
   Begin VB.TextBox Clockwise 
      Alignment       =   2  'Center
      BeginProperty Font 
         Name            =   "MS Sans Serif"
         Size            =   13.5
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   5760
      TabIndex        =   2
      Text            =   "0"
      Top             =   1920
      Width           =   1095
   End
   Begin VB.TextBox CounterClockwise 
      Alignment       =   2  'Center
      BeginProperty Font 
         Name            =   "MS Sans Serif"
         Size            =   13.5
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   1560
      TabIndex        =   1
      Text            =   "0"
      Top             =   1920
      Width           =   1095
   End
   Begin VB.Image Image3 
      Height          =   1965
      Left            =   3240
      Picture         =   "StepperMotor.frx":0000
      Top             =   1440
      Width           =   4260
   End
   Begin VB.Image Image2 
      Height          =   1965
      Left            =   960
      Picture         =   "StepperMotor.frx":0270
      Top             =   1440
      Width           =   4275
   End
   Begin VB.Image Image1 
      Height          =   2625
      Left            =   2400
      Picture         =   "StepperMotor.frx":04E0
      Top             =   2520
      Width           =   3270
   End
   Begin VB.Label Title 
      Alignment       =   2  'Center
      BackStyle       =   0  'Transparent
      Caption         =   "Stepper Motor Control"
      BeginProperty Font 
         Name            =   "Arial Rounded MT Bold"
         Size            =   24
         Charset         =   0
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FFFFFF&
      Height          =   1095
      Left            =   0
      TabIndex        =   0
      Top             =   360
      Width           =   8535
   End
End
Attribute VB_Name = "DisplayWindow"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Form_Load()
Clockwise.Text = "0": CounterClockwise.Text = "0"
End Sub
Private Sub Clockwise_KeyPress(KeyAscii%)
If KeyAscii = 13 Then Call SendClockwiseCommand ' Wait until a value is entered
If (KeyAscii < Asc("0")) Or (KeyAscii > Asc("9")) Then KeyAscii = 0 ' Only accept digits
End Sub
Private Sub CounterClockwise_KeyPress(KeyAscii%)
If KeyAscii = 13 Then Call SendCounterClockwiseCommand ' Wait until a value is entered
If (KeyAscii < Asc("0")) Or (KeyAscii > Asc("9")) Then KeyAscii = 0 ' Only accept digits
End Sub
Private Sub SendClockwiseCommand()
Dim Buffer(2) As Byte
' Need to send a turn command to the IO device
Counter% = Val(Clockwise.Text): CounterClockwise.Text = "0"
Buffer(0) = 0 ' Clockwise command
Buffer(1) = Counter% And &HFF: Buffer(2) = ((Counter% And &HFF00) / 16) And &HFF
'Call WriteUSBdevice(AddressFor(Buffer(0)), 3)
End Sub
Private Sub SendCounterClockwiseCommand()
Dim Buffer(2) As Byte
' Need to send a turn command to the IO device
Counter% = Val(CounterClockwise.Text): Clockwise.Text = "0"
Buffer(0) = 1 ' CounterClockwise command
Buffer(1) = Counter% And &HFF: Buffer(2) = ((Counter% And &HFF00) / 16) And &HFF
'Call WriteUSBdevice(AddressFor(Buffer(0)), 3)
End Sub