VM167.DLL
Technical Guide
VM167.DLL
Technical guide
Table of Contents
IContents
( I ) Introduction
( II ) Overview of the Functions
( III )
Function List
................................................................................................................................... 8( 1 ) OpenDevices
................................................................................................................................... 9( 2 ) CloseDevices
................................................................................................................................... 10( 3 ) ReadAnalogChannel
................................................................................................................................... 11( 4 ) ReadIAllAnalog
................................................................................................................................... 12( 5 ) InOutMode
................................................................................................................................... 13( 6 ) OutputAllDigital
................................................................................................................................... 14( 7 ) ClearDigitalChannel
................................................................................................................................... 15( 8 ) ClearAllDigital
................................................................................................................................... 16( 9 ) SetDigitalChannel
................................................................................................................................... 17( 10 ) SetAllDigital
................................................................................................................................... 18( 11 ) ReadDigitalChannel
................................................................................................................................... 19( 12 ) ReadAllDigital
................................................................................................................................... 20( 13 ) SetPWM
................................................................................................................................... 21( 14 ) OutputAllPWM
................................................................................................................................... 22( 15 ) ResetCounter
................................................................................................................................... 23( 16 ) ReadCounter
................................................................................................................................... 24( 17 ) Connected
................................................................................................................................... 25( 18 ) VersionFirmware
................................................................................................................................... 26( 19 ) VersionDLL
................................................................................................................................... 27( 20 ) ReadBackPWMOut
................................................................................................................................... 28( 21 ) ReadBackInOutMode
3
5
7
( IV ) Function declarations in other programming
languages
................................................................................................................................... 31( 1 ) Visual Basic 6.0
................................................................................................................................... 32( 2 ) Visual Basic 2008 Express
................................................................................................................................... 33( 3 ) Visual C# 2008 Express
................................................................................................................................... 34( 4 ) Delphi
................................................................................................................................... 35( 5 ) Borland C++Builder
© 2010 ... Velleman
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I
I
Introduction
General
The VM167 interface board has 8 digital input/output channels, five analog input channels and two
PWM outputs. The number of inputs/outputs can be expanded by connecting two VM167 cards to the
PC. Both of the cards has its own identification number (card address) by means of the jumper setting.
All communication routines are contained in a Dynamic Link Library VM167.DLL.
In this manual we will describe each of these functions provided by the DLL in detail. Calling the
functions exported by the DLL, you can write custom Windows applications in Delphi, Visual Basic or
any other 32-bit Windows application development tool that supports calls to a DLL.
A complete overview of the procedures and functions that are exported by the VM167.DLL follows.
Note that all the examples in the function description section are written in C++.
VM167 examples folder includes examples written in Visual Basic 2008 Express, Visual C# 2008
Express, Visual C++ 2008 Express, VB6.0, MS Excel VBA, Delphi 5, Borland C++Builder 6 and DevC++.
Readers should have an understanding of the basic data types as well as basic knowledge of the
Microsoft Windows operating system.
Microsoft Visual Studio users please note: The VM167.DLL is a standard Windows DLL, you
cannot reference it.
Calling convention
A calling convention is a scheme for how functions receive parameters from their caller and how they
return a result. Different programming languages use different calling conventions, so it is important to
know which calling convention is used by your programming language and which calling convention is
used by the VM167 DLL.
The most common calling convention is the stdcall calling convention, and this is also the one we
have used for our DLL.
If you are using .NET (VB.NET or C#) you do not need to worry about this since the calling convention
in .NET is also stdcall. However if you are using C to import the functions provided by the DLL, you will
need to pay special attention to this.
Card Address Setting
J5 Card Address
ON 0
OFF 1
TABLE 1: Jumper J5 Settings
The card address settings must be done before the USB cable is connected to the VM167 card or
before turning the PC on.
If the USB cable is disconnected and reconnected then all the digital terminals are set as inputs and
the PWM outputs are reset to zero.
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II
Overview of the Functions
General functions
int OpenDevices() Opens the communication link to the VM167
devices
void CloseDevices() Closes the link to the VM167 devices
int Connected() Checks that the USB connection to the cards is
valid
int VersionFirmware(int CardAddress) Reads the firmware version
number
int VersionDLL() Reads the DLL version number
void InOutMode(int CardAddress, int HighNibble, int LowNibble)
Set the digital terminals either inputs or outputs
Analog to Digital converter functions
int ReadAnalogChannel(int CardAddress, int Channel)
Reads the status of one analog input-channel
void ReadAllAnalog(int CardAddress, int *Buffer)
Reads the status of all analog input-channels
PWM Output functions
void SetPWM(int CardAddress, int Channel, int Data, int Freq)
Sets the status of one PWM output
void OutputAllPWM(int CardAddress, int Data1, int Data2)
Sets both of the PWM outputs
Digital Output functions
void OutputAllDigital(int CardAddress, int Data)
Sets the digital outputs according to the data
void ClearDigitalChannel(int CardAddress, int Channel)
Clears the output channel
void ClearAllDigital(int CardAddress)
Clears all output channels
void SetDigitalChannel(int CardAddress, int Channel)
Sets the output channel
void SetAllDigital(int CardAddress)
Sets all output channels
Digital Input functions
bool ReadDigitalChannel(int CardAddress, int Channel)
Reads the status of the input channel
int ReadAllDigital(int CardAddress)
Reads the status of all the input channels
Counter functions
void ResetCounter(int CardAddress) Resets the 32 bit pulse counter
unsigned int ReadCounter(int CardAddress)
Reads the content of the 32 bit pulse counter
Readback procedures and functions
void ReadBackPWMOut(int CardAddress, int *Buffer)
Reads back the status of the PWM outputs
int ReadBackInOutMode(int CardAddress)
Reads back the current in/out mode of the digital
terminals
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III
Function List
· OpenDevices
· CloseDevices
· ReadAnalogChannel
· ReadIAllAnalog
· InOutMode
· OutputAllDigital
· ClearDigitalChannel
· ClearAllDigital
· SetDigitalChannel
· SetAllDigital
· ReadDigitalChannel
· ReadAllDigital
· SetPWM
· OutputAllPWM
· ResetCounter
· ReadCounter
· Connected
· VersionFirmware
· VersionDLL
· ReadBackPWMOut
· ReadBackInOutMode
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3.1
Open Devices
Syntax
int OpenDevices();
Result
int: If succeeded the return value will indicate the number of VM167 cards found.
1: Card in the Card Address 0 found.
2: Card in the Card Address 1 found.
3: Card in the Card Address 0 and 1 found.
Return value -1 indicates that no VM167 cards found.
Return value 0 indicates that there was problems to open the driver. Disconnect and reconnect the
USB cable.
Description
Opens the communication link to the VM167 card. Loads the drivers needed to communicate via the
USB port. This procedure must be performed before any attempts to communicate with the VM167
cards.
Example
int Cards;
...
Cards = OpenDevices();
switch (Cards)
{
case 0:
Label1->Text = "Card open error.";
break;
case 1:
Label1->Text = "Card 0 connected.";
RadioButton1->Enabled = true;
RadioButton1->Checked = true;
CardAddress = 0;
Timer1->Enabled = true;
break;
case 2:
Label1->Text = "Card 1 connected.";
RadioButton2->Enabled = true;
RadioButton2->Checked = true;
CardAddress = 1;
Timer1->Enabled = true;
break;
case 3:
Label1->Text = "Cards 0 and 1 connected.";
RadioButton1->Enabled = true;
RadioButton1->Checked = true;
RadioButton2->Enabled = true;
RadioButton2->Checked = false;
CardAddress = 0;
Timer1->Enabled = true;
break;
case -1:
Label1->Text = "Card not found.";
break;
}
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3.2
CloseDevices
Syntax
void CloseDevices();
Description
Unloads the communication routines for VM167 cards and unloads the driver needed to communicate
via the USB port. This is the last action of the application program before termination.
Example
private: System::Void Form1_FormClosed(System::Object^ sender,
System::Windows::Forms::FormClosedEventArgs^ e)
{
CloseDevices();
}
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3.3
ReadAnalogChannel
Syntax
int ReadAnalogChannel(int CardAddress, int Channel);
Parameters
CardAddress: The address of previously opened card.
Channel: Value between 1 and 5 which corresponds to the AD channel whose status is to be read.
Result
int: The corresponding Analog to Digital Converter data is read.
Description
The input voltage of the selected 10-bit Analog to Digital converter channel is converted to a value
which lies between 0 and 1023.
Example
int a5;
a5 = ReadAnalogChannel(CardAddress, 5);
label19->Text = a5.ToString();
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3.4
ReadIAllAnalog
Syntax
void ReadAllAnalog(int CardAddress, int *Buffer);
Parameter
CardAddress: The address of previously opened card.
Buffer: Pointer to an array of five 32 bit integers where the data will be read.
Description
The status of all five Analog to Digital Converters are read to an array of long integers.
Example
int Buffer[8];
ReadAllAnalog(CardAddress, Buffer);
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3.5
InOutMode
Syntax
void InOutMode(int CardAddress, int HighNibble, int LowNibble);
Parameters
CardAddress: The address of previously opened card.
LowNibble: 0: the digital I/O terminals 1 to 4 are outputs
LowNibble: 1: the digital I/O terminals 1 to 4 are inputs.
HighNibble: 0: the digital I/O terminals 5 to 8 are outputs
HighNibble: 1: the digital I/O terminals 5 to 8 are inputs.
Description
Set the digital terminals either inputs or outputs.
Example
InOutMode(CardAddress, 0, 0);
// All the digital I/O pins of card are set to outputs.
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3.6
OutputAllDigital
Syntax
void OutputAllDigital(int CardAddress, int Data);
Parameters
CardAddress: The address of previously opened card.
Data: Value between 0 and 255 that is sent to the digital output port (8 channels).
Description
The channels of the digital output port are updated with the status of the corresponding bits in the data
parameter.
Example
InOutMode(CardAddress, 0, 0);
OutputAllDigital(CardAddress, 0x55);
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3.7
ClearDigitalChannel
Syntax
void ClearDigitalChannel(int CardAddress, int Channel);
Parameters
CardAddress: The address of previously opened card.
Channel: Value between 1 and 8 which corresponds to the output channel that is to be cleared.
Description
The selected channel is cleared.
Example
InOutMode(CardAddress, 0, 0);
ClearDigitalChannel(CardAddress, 3);
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3.8
ClearAllDigital
Syntax
void ClearAllDigital(int CardAddress);
Parameter
CardAddress: The address of previously opened card.
Result
All digital outputs are cleared.
Example
InOutMode(CardAddress, 0, 0);
ClearAllDigital(CardAddress);
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3.9
SetDigitalChannel
Syntax
void SetDigitalChannel(int CardAddress, int Channel);
Parameters
CardAddress: The address of previously opened card.
Channel: Value between 1 and 8 which corresponds to the output channel that is to be set.
Description
The selected digital output channel is set.
Example
if (CheckBox3->Checked)
SetDigitalChannel(CardAddress, 3);
else
ClearDigitalChannel(CardAddress, 3);
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3.10
SetAllDigital
Syntax
void SetAllDigital(int CardAddress);
Parameter
CardAddress: The address of previously opened card.
Description
All the digital output channels are set.
Example
InOutMode(CardAddress, 0, 0);
SetAllDigital(CardAddress);
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3.11
ReadDigitalChannel
Syntax
bool ReadDigitalChannel(int CardAddress, int Channel);
Parameters
CardAddress: The address of previously opened card.
Channel: Value between 1 and 8 which corresponds to the input channel whose status is to be read.
Result
bool: TRUE means that the corresponding digital input of the card is HIGH.
FALSE means that the input is LOW.
Description
The status of the selected Input channel is read.
Example
if(ReadDigitalChannel(CardAddress, 3))
label19->Text = "3: On";
else
label19->Text = "3: Off";
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3.12
ReadAllDigital
Syntax
int ReadAllDigital(int CardAddress);
Parameter
CardAddress: The address of previously opened card.
Result
int: The 8 LSB correspond to the status of the digital input channels. '1' means that the corresponding
input of the card is HIGH, '0' means that the input is LOW.
Description
The function returns the status of the digital inputs of the card.
Example
i = ReadAllDigital(CardAddress);
CheckBox1->Checked = (i & 1)>0;
CheckBox2->Checked = (i & 2)>0;
CheckBox3->Checked = (i & 4)>0;
CheckBox4->Checked = (i & 8)>0;
CheckBox5->Checked = (i & 16)>0;
CheckBox6->Checked = (i & 32)>0;
CheckBox7->Checked = (i & 64)>0;
CheckBox8->Checked = (i & 128)>0;
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3.13
SetPWM
Syntax
void SetPWM(int CardAddress, int Channel, int Data, int Freq);
Parameters
CardAddress: The address of previously opened card.
Channel: The PWM output channel 1 or 2.
Data: Value between 0 and 255 which is to be sent to the PWM output of the card. The duty cycle of
the PWM output corresponds to the data value: 0 = 0%, 255 = 100% duty cycle.
Freq: The PWM frequency:
1: 2929.68 Hz
2: 11718.75 Hz
3: 46875 Hz
Example
SetPWM(CardAddress, 1, 128, 3);
// The duty cycle of the PWM output #1 is set to 50%, frequency 46875 Hz
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3.14
OutputAllPWM
Syntax
void OutputAllPWM(int CardAddress, int Data1, int Data2);
Parameters
CardAddress: The address of previously opened card.
Data1: Value between 0 and 255 which is to be sent to the PWM 1 output of the card .
Data2: Value between 0 and 255 which is to be sent to the PWM 2 output of the card
Example
OutputAllPWM (0, 128, 128);
// The duty cycle of the PWM outputs of card address 0 are set to 50%
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3.15
ResetCounter
Syntax
void ResetCounter(int CardAddress);
Parameter
CardAddress: The address of previously opened card.
Description
The 32 bit pulse counter is reset.
Example
ResetCounter(CardAddress);
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3.16
ReadCounter
Syntax
unsigned int ReadCounter(int CardAddress);
Parameter
CardAddress: The address of previously opened card.
Result
unsigned int: The content of the 32 bit pulse counter.
Description
The function returns the status of the 32 bit pulse counter.
The counter counts the pulses fed to the digital terminal number 1. Both input and output pulses are
counted. The counter increments on the rising edge.
Example
TextBox1->Text = (ReadCounter(CardAddress)).ToString();
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3.17
Connected
Syntax
int Connected();
Result
int: The return value indicate the number of VM167 cards connected.
0: No cards connected
1: Card at the Card Address 0 found.
2: Card at the Card Address 1 found.
3: Cards at the Card Address 0 and 1 found.
Description
Checks that USB connection to the cards is valid.
Example
int Cards;
...
Button1_Click(..)
{
Cards = OpenDevices(); // open
...
}
...
if (Cards != Connected()) // check if card still connected
Button1_Click(sender, e); // if not, try to reconnect
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3.18
VersionFirmware
Syntax
int VersionFirmware(int CardAddress);
Parameters
CardAddress: The address of previously opened card.
Result
int: A 32 bit integer where the firmware version (4 digits) is represented. Each byte is one digit.
Description
The firmware version info of the card is read.
Example
int ver;
ver = VersionFirmware(CardAddress);
label17->Text = "Firmware v"+(ver >> 24).ToString()+ "." +((ver >> 16) &
0xFF).ToString()
+"."+((ver >> 8) & 0xFF).ToString()+ "."+(ver & 0xFF).ToString();
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3.19
VersionDLL
Syntax
int VersionDLL();
Result
int: A 32 bit integer where the DLL version (4 digits) is represented. Each byte is one digit.
Description
The DLL version info is read.
Example
int ver;
ver = VersionDLL();
label18->Text = "DLL v"+(ver >> 24).ToString()+ "."+((ver >> 16) &
0xFF).ToString()+ "."
+((ver >> 8) & 0xFF).ToString()+ "."+(ver & 0xFF).ToString();
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3.20
ReadBackPWMOut
Syntax
void ReadBackPWMOut(int CardAddress, int *Buffer);
Parameter
CardAddress: The address of previously opened card.
Buffer: Pointer to array of two 32 bit integers where the data will be read.
Description
The values of the PWM outputs are read back to an array of two 32 bit integers.
Example
int PWM[2];
ReadBackPWMOut(CardAddress, PWM);
TrackBar1->Value = PWM[0];
TrackBar2->Value = PWM[1];
Label15->Text = TrackBar1->Value.ToString();
Label16->Text = TrackBar2->Value.ToString();
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3.21
ReadBackInOutMode
Syntax
int ReadBackInOutMode(int CardAddress);
Parameter
CardAddress: The address of previously opened card.
Result
int: Value between 0 and 3 representing the input/output mode of the digital terminals.
0: All the digital I/O terminals are outputs
1: The digital I/O terminals 1 to 4 are inputs and terminals 5 to 8 are outputs.
2: The digital I/O terminals 1 to 4 are outputs and terminals 5 to 8 are inputs.
3: All the digital I/O terminals are inputs
Description
The input / output mode of the digital terminals is read back.
Example
int IOmode;
IOmode = ReadBackInOutMode(CardAddress);
if ((IOmode & 1)>0)
RadioButton3->Checked = true;
else
RadioButton4->Checked = true;
if ((IOmode & 2)>0)
RadioButton6->Checked = true;
else
RadioButton5->Checked = true;
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IV
Function declarations in other programming languages
· Visual Basic 6.0
· Visual Basic 2008 Express
· Visual C# 2008 Express
· Delphi
· Borland C++Builder
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4.1
Visual Basic 6.0
Private Declare Function OpenDevices Lib "vm167.dll" () As Long
Private Declare Sub CloseDevices Lib "vm167.dll" ()
Private Declare Sub InOutMode Lib "vm167.dll" (ByVal CardAddress As Long, ByVal HighNibble As Long, ByVal LowNibble As
Long)
Private Declare Function ReadAnalogChannel Lib "vm167.dll" (ByVal CardAddress As Long, ByVal Channel As Long) As Long
Private Declare Sub ReadAllAnalog Lib "vm167.dll" (ByVal CardAddress As Long, ByRef Buffer As Long)
Private Declare Sub OutputAllDigital Lib "vm167.dll" (ByVal CardAddress As Long, ByVal Data As Long)
Private Declare Sub ClearDigitalChannel Lib "vm167.dll" (ByVal CardAddress As Long, ByVal Channel As Long)
Private Declare Sub ClearAllDigital Lib "vm167.dll" (ByVal CardAddress As Long)
Private Declare Sub SetDigitalChannel Lib "vm167.dll" (ByVal CardAddress As Long, ByVal Channel As Long)
Private Declare Sub SetAllDigital Lib "vm167.dll" (ByVal CardAddress As Long)
Private Declare Function ReadDigitalChannel Lib "vm167.dll" (ByVal CardAddress As Long, ByVal Channel As Long) As
Boolean
Private Declare Function ReadAllDigital Lib "vm167.dll" (ByVal CardAddress As Long) As Long
Private Declare Function ReadCounter Lib "vm167.dll" (ByVal CardAddress As Long) As Long
Private Declare Sub ResetCounter Lib "vm167.dll" (ByVal CardAddress As Long)
Private Declare Sub SetPWM Lib "vm167.dll" (ByVal CardAddress As Long, ByVal Channel As Long, ByVal Data As Long,
ByVal Freq As Long)
Private Declare Sub OutputAllPWM Lib "vm167.dll" (ByVal CardAddress As Long, ByVal Data1 As Long, ByVal Data2 As Long)
Private Declare Function VersionDLL Lib "vm167.dll" () As Long
Private Declare Function VersionFirmware Lib "vm167.dll" (ByVal CardAddress As Long) As Long
Private Declare Function Connected Lib "vm167.dll" () As Long
Private Declare Sub ReadBackPWMOut Lib "vm167.dll" (ByVal CardAddress As Long, ByRef Buffer As Long)
Private Declare Function ReadBackInOutMode Lib "vm167.dll" (ByVal CardAddress As Long) As Long
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4.2
Visual Basic 2008 Express
Private Declare Function OpenDevices Lib "vm167.dll" () As Integer
Private Declare Sub CloseDevices Lib "vm167.dll" ()
Private Declare Sub InOutMode Lib "vm167.dll" (ByVal CardAddress As Integer, ByVal HighNibble As Integer, ByVal LowNibble
As Integer)
Private Declare Function ReadAnalogChannel Lib "vm167.dll" (ByVal CardAddress As Integer, ByVal Channel As Integer) As
Integer
Private Declare Sub ReadAllAnalog Lib "vm167.dll" (ByVal CardAddress As Integer, ByRef Buffer As Integer)
Private Declare Sub OutputAllDigital Lib "vm167.dll" (ByVal CardAddress As Integer, ByVal Data As Integer)
Private Declare Sub ClearDigitalChannel Lib "vm167.dll" (ByVal CardAddress As Integer, ByVal Channel As Integer)
Private Declare Sub ClearAllDigital Lib "vm167.dll" (ByVal CardAddress As Integer)
Private Declare Sub SetDigitalChannel Lib "vm167.dll" (ByVal CardAddress As Integer, ByVal Channel As Integer)
Private Declare Sub SetAllDigital Lib "vm167.dll" (ByVal CardAddress As Integer)
Private Declare Function ReadDigitalChannel Lib "vm167.dll" (ByVal CardAddress As Integer, ByVal Channel As Integer) As
Boolean
Private Declare Function ReadAllDigital Lib "vm167.dll" (ByVal CardAddress As Integer) As Integer
Private Declare Function ReadCounter Lib "vm167.dll" (ByVal CardAddress As Integer) As UInteger
Private Declare Sub ResetCounter Lib "vm167.dll" (ByVal CardAddress As Integer)
Private Declare Sub SetPWM Lib "vm167.dll" (ByVal CardAddress As Integer, ByVal Channel As Integer, ByVal Data As
Integer, ByVal Freq As Integer)
Private Declare Sub OutputAllPWM Lib "vm167.dll" (ByVal CardAddress As Integer, ByVal Data1 As Integer, ByVal Data2 As
Integer)
Private Declare Function VersionDLL Lib "vm167.dll" () As Integer
Private Declare Function VersionFirmware Lib "vm167.dll" (ByVal CardAddress As Integer) As Integer
Private Declare Function Connected Lib "vm167.dll" () As Integer
Private Declare Sub ReadBackPWMOut Lib "vm167.dll" (ByVal CardAddress As Integer, ByRef Buffer As Integer)
Private Declare Function ReadBackInOutMode Lib "vm167.dll" (ByVal CardAddress As Integer) As Integer
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4.3
Visual C# 2008 Express
[DllImport("vm167.dll")]
public static extern int OpenDevices();
[DllImport("vm167.dll")]
public static extern void CloseDevices();
[DllImport("vm167.dll")]
public static extern int ReadAnalogChannel(int CardAddress, int Channel);
[DllImport("vm167.dll")]
public static extern void ReadAllAnalog(int CardAddress, int[] Buffer);
[DllImport("vm167.dll")]
public static extern void SetPWM(int CardAddress, int Channel, int Data, int Freq);
[DllImport("vm167.dll")]
public static extern void OutputAllPWM(int CardAddress, int Data1, int Data2);
[DllImport("vm167.dll")]
public static extern void OutputAllDigital(int CardAddress, int Data);
[DllImport("vm167.dll")]
public static extern void ClearDigitalChannel(int CardAddress, int Channel);
[DllImport("vm167.dll")]
public static extern void ClearAllDigital(int CardAddress);
[DllImport("vm167.dll")]
public static extern void SetDigitalChannel(int CardAddress, int Channel);
[DllImport("vm167.dll")]
public static extern void SetAllDigital(int CardAddress);
[DllImport("vm167.dll")]
public static extern bool ReadDigitalChannel(int CardAddress, int Channel);
[DllImport("vm167.dll")]
public static extern int ReadAllDigital(int CardAddress);
[DllImport("vm167.dll")]
public static extern void InOutMode(int CardAddress, int HighNibble, int LowNibble);
[DllImport("vm167.dll")]
public static extern uint ReadCounter(int CardAddress);
[DllImport("vm167.dll")]
public static extern void ResetCounter(int CardAddress);
[DllImport("vm167.dll")]
public static extern int Connected();
[DllImport("vm167.dll")]
public static extern int VersionFirmware(int CardAddress);
[DllImport("vm167.dll")]
public static extern int VersionDLL();
[DllImport("vm167.dll")]
public static extern void ReadBackPWMOut(int CardAddress, int[] Buffer);
public static extern int ReadBackInOutMode(int CardAddress);
[DllImport("vm167.dll")]
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4.4
Delphi
function OpenDevices: integer; stdcall; external 'VM167.dll';
procedure CloseDevices; stdcall; external 'VM167.dll';
function ReadAnalogChannel(CardAddress: integer; Channel: integer):integer; stdcall; external 'VM167.dll';
procedure ReadAllAnalog(CardAddress: integer; Buffer: Pointer); stdcall; external 'VM167.dll';
function ReadAllDigital(CardAddress: integer): integer; stdcall; external 'VM167.dll';
procedure SetPWM(CardAddress: integer; Channel: integer; Data: integer; Frequency: integer); stdcall; external
'VM167.dll';
procedure OutputAllPWM(CardAddress: integer; Data1: integer; Data2: integer); stdcall; external 'VM167.dll';
procedure InOutMode(CardAddress: integer; HighNibble: integer; LowNibble: integer);stdcall; external 'VM167.dll';
procedure OutputAllDigital(CardAddress: integer; Data: integer);stdcall; external 'VM167.dll';
procedure ClearAllDigital(CardAddress: integer); stdcall; external 'VM167.dll';
procedure ClearDigitalChannel(CardAddress: integer; Channel: integer); stdcall; external 'VM167.dll';
procedure SetDigitalChannel(CardAddress: integer; Channel: integer); stdcall; external 'VM167.dll';
procedure SetAllDigital(CardAddress: integer); stdcall; external 'VM167.dll';
function ReadCounter(CardAddress: integer):cardinal; stdcall; external 'VM167.dll';
procedure ResetCounter(CardAddress: integer); stdcall; external 'VM167.dll';
function VersionFirmware(CardAddress: integer): integer; stdcall; external 'VM167.dll';
function VersionDLL: integer; stdcall; external 'VM167.dll';
function Connected: integer; stdcall; external 'VM167.dll';
procedure ReadBackPWMOut(CardAddress: integer; Buffer: Pointer); stdcall; external 'VM167.dll';
function ReadBackInOutMode(CardAddress: integer):integer; stdcall; external 'VM167.dll';
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4.5
Borland C++Builder
#ifdef __cplusplus
extern "C" {
#endif
#define FUNCTION __declspec (dllimport )
FUNCTION int __stdcall OpenDevices();
FUNCTION void __stdcall CloseDevices();
FUNCTION int __stdcall ReadAnalogChannel( int CardAddress, int Channel);
FUNCTION void __stdcall ReadAllAnalog( int CardAddress, int *Buffer);
FUNCTION void __stdcall SetPWM( int CardAddress, int Channel, int Data, int Freq);
FUNCTION void __stdcall OutputAllPWM( int CardAddress, int Data1, int Data2);
FUNCTION void __stdcall OutputAllDigital( int CardAddress, int Data);
FUNCTION void __stdcall ClearDigitalChannel( int CardAddress, int Channel);
FUNCTION void __stdcall ClearAllDigital( int CardAddress);
FUNCTION void __stdcall SetDigitalChannel( int CardAddress, int Channel);
FUNCTION void __stdcall SetAllDigital( int CardAddress);
FUNCTION bool __stdcall ReadDigitalChannel( int CardAddress, int Channel);
FUNCTION int __stdcall ReadAllDigital( int CardAddress);
FUNCTION void __stdcall InOutMode( int CardAddress, int HighNibble, int LowNibble);
FUNCTION unsigned int __stdcall ReadCounter( int CardAddress);
FUNCTION void __stdcall ResetCounter( int CardAddress);
FUNCTION int __stdcall Connected();
FUNCTION int __stdcall VersionFirmware( int CardAddress);
FUNCTION int __stdcall VersionDLL();
FUNCTION void __stdcall ReadBackPWMOut( int CardAddress, int *Buffer);
FUNCTION int __stdcall ReadBackInOutMode( int CardAddress);
#ifdef __cplusplus
}
#endif
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