Omega Engineering Computer Hardware OME A826PG User Manual

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OME-A-826PG Software Manual [Win 95/98/NT]  
OME-A-826PG  
Software Manual  
[ For Windows 95/98/NT ]  
Date: Aug-15-2000  
Ver: 2.2  
Page 1  
 
OME-A-826PG Software Manual [Win 95/98/NT]  
Table of Contents  
Date: Aug-15-2000  
Ver: 2.2  
Page 2  
 
OME-A-826PG Software Manual [Win 95/98/NT]  
Date: Aug-15-2000  
Ver: 2.2  
Page 3  
 
OME-A-826PG Software Manual [Win 95/98/NT]  
1 Introduction  
The OME-A-826PG is a multifunction, 16 bits resolution A/D, D/A and digital  
I/O card. The feature of the OME-A-826PG are given as below:  
1. A/D=16 bits, 16 channels(single-ended) or 8 channels(differential)  
2. A-826PG : low gain (1/2/4/8), the analog input signal range configuration code is given in  
Sec. 4.1  
3. DA=12 bits, 2 channels, 0-5V or 0-10V output by hardware JP1 setting  
4. 16 channels TTL compatible digital input  
5. 16 channels TTL compatible digital output  
The A826.DLL and A826.Vxd is a collection of data acquisition subroutines  
for the OME-A-826PG Windows 95/98 Applications. These subroutines are  
written with C language and perform a variety of data acquisition operations.  
The subroutines in A826.DLL are easy understanding as its name standing  
for. It provides powerful, easy-to-use subroutine for developing your data  
acquisition application. Your program can call this DLL functions by VC++, VB ,  
Delphi , Borland C++ Builder easily. To speed-up your developing process, some  
demonstration source program are provided.  
The OME-A-826PG consists of these DLLs and device driver :  
For Windows 95/98  
A826.dll, A826.lib  
A826.Vxd  
ÆLibraries for A826 PG card  
Æ A826 Device driver for Windows 95/98  
For Windows NT  
A826.dll, A826.lib  
A826.sys, Napwnt.sys  
ÆLibraries for OME-A826 PGL/PGH card  
ÆA826 Device driver for Windows NT  
These DLLs can perform a variety of data acquisition operations as follows:  
Date: Aug-15-2000  
Ver: 2.2  
Page 4  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
1.1 References  
Please refer to the following user manuals:  
SoftInst.pdf:  
Describes how to install the software package under Windows 95/98/NT.  
CallDll.pdf:  
Describes how to call the DLL functions with VC++5, VB5, Delphi3 and Borland C++  
Builder 3.  
ResCheck.pdf:  
Describes how to check the resources I/O Port address, IRQ number and DMA  
number for add-on cards under Windows 95/98/NT.  
Date: Aug-15-2000  
Ver: 2.2  
Page 5  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
1.2 Range Configuration Code  
The AD converter of the OME-A-826PG is 16 bits under all  
configuration code. If the analog input range is configured to ±5V range, the  
resolution of one bit is equal to 2.44 mV. If the analog input range is configured to  
±2.5V range, the resolution will be 1.22 mV. If the analog input signal is about  
1 V, use configuration 0/1/2 (for OME-A-826PG), it will get nearly the same result  
except resolution. So choose the correct configuration code can achieve  
the most high precision measurement.  
OME-A-826PG Input Signal Range Configuration Code Table  
Bipolar/Unipolar  
Bipolar  
Input Signal Range  
Configuration Code  
0
± 10V  
± 5V  
± 2.5V  
± 1.25V  
1
2
3
Bipolar  
Bipolar  
Bipolar  
Date: Aug-15-2000  
Ver: 2.2  
Page 6  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
2 Declaration Files  
For the Windows 95/98 user:  
|--\Driver  
| |--\A826.DLL  
| |--\A826.Vxd  
| |--\BCB3  
<-- Dynamic Linking Library  
<-- Device driver for A826PG  
| | |--\A826.h  
| | |--\A826.Lib  
| | +--\A826u.cpp  
| |--\Delphi3  
<-- Header file  
<-- Import Library for BCB  
<-- Some function for BCB  
| | |--\A826.pas  
| | +--\A826u.pas  
| |--\VB5  
<-- Declaration file  
<-- Some function for Delphi  
| | |--\A826.bas  
| | +--\A826u.bas  
| +--\VC5  
<-- Declaration file  
<-- Some function for VB  
|
|
|--\A826.h  
+--\A826.Lib  
<-- Header file  
<-- Import Library for VC++  
For the Windows NT user:  
|--\Driver  
| |--\A826.DLL  
| |--\A826.sys  
| |--\Napwnt.sys  
| |--\BCB3  
<-- Dynamic Linking Library  
<-- device driver  
<-- device driver  
| | |--\A826.h  
| | |--\A826.Lib  
| | +--\A826u.cpp  
| |--\Delphi3  
<-- Header file  
<-- Import Library for BCB  
<-- Some function for BCB  
| | |--\A826.pas  
| | +--\A826u.pas  
| |--\VB5  
<-- Declaration file  
<-- Some function for Delphi  
| | |--\A826.bas  
| | +--\A826u.bas  
| +--\VC5  
<-- Declaration file  
<-- Some function for VB  
|
|
|--\A826.h  
+--\A826.Lib  
<-- Header file  
<-- Import Library for VC++  
Date: Aug-15-2000  
Ver: 2.2  
Page 7  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
2.1 For C user  
2.1.1  
A826.H (for Win 95/98)  
#ifdef __cplusplus  
#define EXPORTS extern "C" __declspec (dllimport)  
#else  
#define EXPORTS  
#endif  
/***************** DEFINE A826 RELATIVE ADDRESS *****************/  
#define TIMER0  
#define TIMER1  
#define TIMER2  
#define TIMER_MODE  
#define AD_LO  
0x00  
0x01  
0x02  
0x03  
0x04 /* Analog to Digital, Low Byte */  
0x05 /* Analog to Digital, High Byte */  
0x04 /* Digit to Analog, CH 0 */  
0x05  
0x06 /* Digit to Analog, CH 1 */  
0x07  
#define AD_HI  
#define DA_CH0_LO  
#define DA_CH0_HI  
#define DA_CH1_LO  
#define DA_CH1_HI  
#define DI_LO  
0x06 /* Digit Input */  
0x0D /* Digit Output */  
#define DO_LO  
#define CLEAR_IRQ  
#define SET_GAIN  
#define SET_CH  
#define SET_MODE  
#define SOFT_TRIG  
0x08  
0x09  
0x0A  
0x0B  
0x0C  
#define POLLING_MODE  
#define DMA_MODE  
#define INTERRUPT_MODE  
1
2
6
/*** define the gain mode ***/  
#define A826_BI_1  
0
#define A826_BI_10  
#define A826_BI_100  
#define A826_BI_1000  
#define A826_UNI_1  
#define A826_UNI_10  
#define A826_UNI_100  
#define A826_UNI_1000  
#define A826_BI_05  
#define A826_BI_5  
1
2
3
4
5
6
7
8
9
#define A826_BI_50  
#define A826_BI_500  
10  
11  
#define A826_BI_2  
#define A826_BI_4  
#define A826_BI_8  
#define A826_UNI_2  
#define A826_UNI_4  
#define A826_UNI_8  
1
2
3
5
6
7
Date: Aug-15-2000  
Ver: 2.2  
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OME-A-826PG Software Manual [Win 95/98/NT]  
#define NoError  
0
#define DriverOpenError  
#define DriverNoOpen  
#define GetDriverVersionError  
#define InstallIrqError  
#define ClearIntCountError  
#define GetIntCountError  
#define AdError1  
1
2
3
4
5
6
100  
-200.0  
9
#define AdError2  
#define InstallBufError  
#define GetBufferError  
#define INTStartError  
#define INTStopError  
#define InstallDmaIrqError  
#define RemoveDmaIrqError  
#define DmaStartError  
#define DmaStopError  
#define DmaGetDataError  
#define TimeoutError  
#define AllocateMemoryError  
#define OtherError  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
//********* Test Functios ************  
EXPORTS short CALLBACK SHORT_SUB_2(short nA, short nB);  
EXPORTS float CALLBACK FLOAT_SUB_2(float fA, float fB);  
EXPORTS WORD CALLBACK A826_Get_DLL_Version(void);  
EXPORTS WORD CALLBACK A826_GetDriverVersion(WORD *wDriverVersion);  
//********* DI/DO Functios ************  
EXPORTS WORD CALLBACK A826_DI(WORD wBase);  
EXPORTS void CALLBACK A826_DO(WORD wBase, WORD wHexValue);  
//********* DA/AD Functios ************  
EXPORTS float CALLBACK A826_AD(WORD wBase, WORD wChannel, WORD wConfig);  
EXPORTS WORD CALLBACK A826_ADs_Hex(WORD wBase, WORD wChannel, WORD wConfig,  
short wBuf[], WORD wCount);  
EXPORTS WORD CALLBACK A826_ADs_Float(WORD wBase, WORD wChannel, WORD wConfig,  
float fBuf[], WORD wCount);  
EXPORTS void CALLBACK A826_DA(WORD wBase, WORD wChannel, WORD wHexValue);  
EXPORTS void CALLBACK A826_Uni5_DA(WORD wBase, WORD wChannel, float fValue);  
EXPORTS void CALLBACK A826_Uni10_DA(WORD wBase, WORD wChannel, float fValue);  
//********* Driver Functios ************  
EXPORTS WORD CALLBACK A826_DriverInit(void);  
EXPORTS void CALLBACK A826_DriverClose(void);  
EXPORTS WORD CALLBACK A826_DELAY(WORD wBase, WORD wDownCount);  
EXPORTS WORD CALLBACK A826_Check_Address(WORD wBase);  
EXPORTS void CALLBACK A826_OutputByte(WORD wPortAddr, UCHAR bOutputVal);  
EXPORTS void CALLBACK A826_OutputWord(WORD wPortAddr, WORD wOutputVal);  
EXPORTS WORD CALLBACK A826_InputByte(WORD wPortAddr);  
EXPORTS WORD CALLBACK A826_InputWord(WORD wPortAddr);  
Date: Aug-15-2000  
Ver: 2.2  
Page 9  
 
OME-A-826PG Software Manual [Win 95/98/NT]  
//********* IRQ Functios ************  
EXPORTS WORD CALLBACK A826_InstallIrq  
(WORD wBase, WORD wIrq, HANDLE *hEvent, DWORD dwCount);  
EXPORTS WORD CALLBACK A826_AD_INT_Start(WORD Ch, WORD Gain, WORD c1, WORD c2);  
EXPORTS WORD CALLBACK A826_AD_INT_Stop(void);  
EXPORTS WORD CALLBACK A826_GetIntCount(DWORD *dwVal);  
EXPORTS WORD CALLBACK A826_GetBuffer(DWORD dwNum, short wBuffer[]);  
EXPORTS WORD CALLBACK A826_GetFloatBuffer(DWORD dwNum, float fBuffer[]);  
//********* DMA Functios ************  
EXPORTS WORD CALLBACK A826_AD_DMA_InstallIrq(WORD wBase,WORD wIrq,WORD wDmaChan);  
EXPORTS WORD CALLBACK A826_AD_DMA_RemoveIrq(void);  
EXPORTS WORD CALLBACK A826_AD_DMA_Start(WORD Ch,WORD Gain,WORD c1,WORD c2,  
int cnt, WORD wPassOut[]);  
EXPORTS WORD CALLBACK A826_AD_DMA_Stop(void);  
EXPORTS WORD CALLBACK A826_AD_DMA_IsNotFinished(void);  
EXPORTS WORD CALLBACK A826_AD_DMA_GetBuffer(short wBuf[]);  
EXPORTS WORD CALLBACK A826_AD_DMA_GetFloatBuffer(float fBuf[]);  
Date: Aug-15-2000  
Ver: 2.2  
Page 10  
 
OME-A-826PG Software Manual [Win 95/98/NT]  
2.1.2  
A826.H (for Win NT)  
#ifdef __cplusplus  
#define EXPORTS extern "C" __declspec (dllimport)  
#else  
#define EXPORTS  
#endif  
/***************** DEFINE A826 RELATIVE ADDRESS *****************/  
#define TIMER0  
#define TIMER1  
#define TIMER2  
#define TIMER_MODE  
#define AD_LO  
0x00  
0x01  
0x02  
0x03  
0x04 /* Analog to Digital, Low Byte */  
0x05 /* Analog to Digital, High Byte */  
0x04 /* Digit to Analog, CH 0 */  
0x05  
0x06 /* Digit to Analog, CH 1 */  
0x07  
#define AD_HI  
#define DA_CH0_LO  
#define DA_CH0_HI  
#define DA_CH1_LO  
#define DA_CH1_HI  
#define DI_LO  
0x06 /* Digit Input */  
0x0D /* Digit Output */  
#define DO_LO  
#define CLEAR_IRQ  
#define SET_GAIN  
#define SET_CH  
#define SET_MODE  
#define SOFT_TRIG  
0x08  
0x09  
0x0A  
0x0B  
0x0C  
#define POLLING_MODE  
#define DMA_MODE  
#define INTERRUPT_MODE  
1
2
6
/*** define the gain mode ***/  
#define A826_BI_1  
0
#define A826_BI_10  
#define A826_BI_100  
#define A826_BI_1000  
#define A826_UNI_1  
#define A826_UNI_10  
#define A826_UNI_100  
#define A826_UNI_1000  
#define A826_BI_05  
#define A826_BI_5  
1
2
3
4
5
6
7
8
9
#define A826_BI_50  
#define A826_BI_500  
10  
11  
#define A826_BI_2  
#define A826_BI_4  
#define A826_BI_8  
#define A826_UNI_2  
#define A826_UNI_4  
#define A826_UNI_8  
1
2
3
5
6
7
Date: Aug-15-2000  
Ver: 2.2  
Page 11  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
#define NoError  
#define DriverOpenError  
#define DriverNoOpen  
0
1
2
#define GetDriverVersionError 3  
#define InstallIrqError  
#define ClearIntCountError  
#define GetIntCountError  
#define AdError1  
#define AdError2  
#define InstallBufError  
4
5
6
100  
-200  
9
#define AllocateMemoryError 10  
#define CardTypeError  
#define GetBufferError  
#define TimeoutError  
#define OtherError  
11  
12  
13  
14  
//********* Test Functios ************  
EXPORTS short CALLBACK SHORT_SUB_2(short nA, short nB);  
EXPORTS float CALLBACK FLOAT_SUB_2(float fA, float fB);  
EXPORTS WORD CALLBACK A826_Get_DLL_Version(void);  
EXPORTS WORD CALLBACK A826_GetDriverVersion(WORD *wDriverVersion);  
//********* DI/DO Functios ************  
EXPORTS WORD CALLBACK A826_DI(WORD wBase);  
EXPORTS void CALLBACK A826_DO(WORD wBase, WORD wHexValue);  
//********* DA/AD Functios ************  
EXPORTS float CALLBACK A826_AD(WORD wBase, WORD wChannel, WORD wConfig);  
EXPORTS WORD CALLBACK A826_ADs_Hex(WORD wBase, WORD wChannel, WORD  
wConfig, short wBuf[], WORD wCount);  
EXPORTS WORD CALLBACK A826_ADs_Float(WORD wBase, WORD wChannel, WORD  
wConfig, float fBuf[], WORD wCount);  
EXPORTS void CALLBACK A826_DA(WORD wBase, WORD wChannel, WORD wHexValue);  
EXPORTS void CALLBACK A826_Uni5_DA(WORD wBase, WORD wChannel, float fValue);  
EXPORTS void CALLBACK A826_Uni10_DA(WORD wBase, WORD wChannel, float fValue);  
//********* Driver Functios ************  
EXPORTS WORD CALLBACK A826_DriverInit(void);  
EXPORTS void CALLBACK A826_DriverClose(void);  
EXPORTS WORD CALLBACK A826_DELAY(WORD wBase, WORD wDownCount);  
EXPORTS WORD CALLBACK A826_Check_Address(WORD wBase);  
EXPORTS void CALLBACK A826_OutputByte(WORD wPortAddr, UCHAR bOutputVal);  
EXPORTS void CALLBACK A826_OutputWord(WORD wPortAddr, WORD wOutputVal);  
EXPORTS WORD CALLBACK A826_InputByte(WORD wPortAddr);  
EXPORTS WORD CALLBACK A826_InputWord(WORD wPortAddr);  
//********* IRQ Functios ************  
EXPORTS WORD CALLBACK A826_InstallIrq  
(WORD wBase, WORD wIrq, HANDLE *hEvent,DWORD dwCount);  
EXPORTS WORD CALLBACK A826_AD_INT_Start  
(WORD Ch, WORD Gain, WORD c1, WORD c2);  
EXPORTS WORD CALLBACK A826_AD_INT_Stop(void);  
EXPORTS WORD CALLBACK A826_GetIntCount(DWORD *dwVal);  
EXPORTS WORD CALLBACK A826_GetBuffer(DWORD dwNum, short wBuffer[]);  
EXPORTS WORD CALLBACK A826_GetFloatBuffer(DWORD dwNum, float fBuffer[]);  
Date: Aug-15-2000  
Ver: 2.2  
Page 12  
 
OME-A-826PG Software Manual [Win 95/98/NT]  
2.1.3  
A826U.Cpp (for BCB)  
#include <math.h>  
//*-----------------------------------------------------*  
//* Return voltage value or -100.0 if any error occurs *  
//* or parameter is out of range.  
//* HiLo : 1 --> High Gain , 0 --> Low Gain  
//* Gain : 0-3  
*
*
*
//*-----------------------------------------------------*  
float A826_AD2F(Word hex, int Gain )  
{
float ZeroBase, VoltageRange, FullRange ;  
short int i ;  
ZeroBase = 0.0 ;  
FullRange = 32767.0 ;  
VoltageRange = 10.0 ;  
i = hex ;  
Gain = Gain % 16;  
if ( (Gain < 0) || (Gain > 3) )  
return -100.0;  
return ((((i - ZeroBase) / FullRange) * VoltageRange) / pow( 2 , Gain));  
}
Date: Aug-15-2000  
Ver: 2.2  
Page 13  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
2.1.4  
The VC++ Demo Result:  
2.1.5  
Borland C++ Builder Demo Result  
Date: Aug-15-2000  
Ver: 2.2  
Page 14  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
2.2 For The VB user  
2.2.1  
A826.BAS (for Win 95/98)  
Attribute VB_Name = "A826"  
'*********************************************************************************  
'
The Declare of A826.DLL for A826 DAQ Card  
'*********************************************************************************  
Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)  
'***************** DEFINE A826 RELATIVE ADDRESS *****************  
Global Const TIMER0  
Global Const Timer1  
Global Const TIMER2  
Global Const TIMER_MODE  
Global Const AD_LO  
= &H0  
= &H1  
= &H2  
= &H3  
= &H4  
= &H5  
= &H4  
= &H5  
= &H6  
= &H7  
= &H6  
= &HD  
'* Analog to Digital, Low Byte *  
'* Analog to Digital, High Byte *  
'* Digit to Analog, CH 0 *  
Global Const AD_HI  
Global Const DA_CH0_LO  
Global Const DA_CH0_HI  
Global Const DA_CH1_LO  
Global Const DA_CH1_HI  
Global Const DI_LO  
'* Digit to Analog, CH 1 *  
'* Digit Input *  
'* Digit Output *  
Global Const DO_LO  
Global Const CLEAR_IRQ  
Global Const SET_GAIN  
Global Const SET_CH  
Global Const SET_MODE  
Global Const SOFT_TRIG  
= &H8  
= &H9  
= &HA  
= &HB  
= &HC  
Global Const POLLING_MODE = 1  
Global Const DMA_MODE = 2  
Global Const INTERRUPT_MODE = 6  
'*** define the gain mode ***  
Global Const A826_BI_1  
Global Const A826_BI_10  
Global Const A826_BI_100  
Global Const A826_BI_1000  
Global Const A826_UNI_1  
Global Const A826_UNI_10  
= 0  
= 1  
= 2  
= 3  
= 4  
= 5  
Global Const A826_UNI_100 = 6  
Global Const A826_UNI_1000 = 7  
Global Const A826_BI_05  
Global Const A826_BI_5  
Global Const A826_BI_50  
Global Const A826_BI_500  
= 8  
= 9  
= 10  
= 11  
Date: Aug-15-2000  
Ver: 2.2  
Page 15  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
Global Const A826_BI_2  
Global Const A826_BI_4  
Global Const A826_BI_8  
Global Const A826_UNI_2  
Global Const A826_UNI_4  
Global Const A826_UNI_8  
= 1  
= 2  
= 3  
= 5  
= 6  
= 7  
Global Const NoError  
= 0  
Global Const DriverOpenError  
Global Const DriverNoOpen  
= 1  
= 2  
Global Const GetDriverVersionError  
Global Const InstallIrqError  
Global Const ClearIntCountError  
Global Const GetIntCountError  
Global Const AdError1  
= 3  
= 4  
= 5  
= 6  
= 100  
= -200#  
= 9  
= 10  
= 11  
= 12  
= 13  
= 14  
= 15  
= 16  
= 17  
= 18  
= 19  
= 20  
Global Const AdError2  
Global Const InstallBufError  
Global Const GetBufferError  
Global Const INTStartError  
Global Const INTStopError  
Global Const InstallDmaIrqError  
Global Const RemoveDmaIrqError  
Global Const DmaStartError  
Global Const DmaStopError  
Global Const DmaGetDataError  
Global Const TimeoutError  
Global Const AllocateMemoryError  
Global Const OtherError  
'******* Test Functions ***********  
Declare Function SHORT_SUB_2 Lib "A826.DLL" (ByVal nA As Integer, _  
ByVal nB As Integer) As Integer  
Declare Function FLOAT_SUB_2 Lib "A826.DLL" (ByVal fA As Single, _  
ByVal fB As Single) As Single  
Declare Function A826_Get_DLL_Version Lib "A826.DLL" () As Integer  
Declare Function A826_GetDriverVersion Lib "A826.DLL" _  
(wDriverVersion As Integer) As Integer  
'******* DI/DO Functions ***********  
Declare Function A826_DI Lib "A826.DLL" (ByVal wBase As Integer) As Integer  
Declare Sub A826_DO Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wHexValue As Integer)  
'******* AD/DA Functions ***********  
Declare Function A826_AD Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wChannel As Integer, ByVal wConfig As Integer) As Single  
Declare Function A826_ADs_Hex Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wChannel As Integer, ByVal wConfig As Integer, _  
wBuf As Integer, ByVal wCount As Integer) As Integer  
Declare Function A826_ADs_Float Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wChannel As Integer, ByVal wConfig As Integer, _  
fBuf As Single, ByVal wCount As Integer) As Integer  
Declare Sub A826_DA Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wChannel As Integer, ByVal wHexValue As Integer)  
Declare Sub A826_Uni5_DA Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wChannel As Integer, ByVal fValue As Single)  
Date: Aug-15-2000  
Ver: 2.2  
Page 16  
 
OME-A-826PG Software Manual [Win 95/98/NT]  
Declare Sub A826_Uni10_DA Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wChannel As Integer, ByVal fValue As Single)  
'******* Driver Functions ***********  
Declare Function A826_DriverInit Lib "A826.DLL" () As Integer  
Declare Sub A826_DriverClose Lib "A826.DLL" ()  
Declare Function A826_DELAY Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wDownCount As Integer) As Integer  
Declare Function A826_Check_Address Lib "A826.DLL" (ByVal wBase As Integer) As Integer  
Declare Sub A826_OutputByte Lib "A826.DLL" (ByVal wPortAddr As Integer, ByVal bOutputVal  
As Byte)  
Declare Sub A826_OutputWord Lib "A826.DLL" (ByVal wPortAddr As Integer, ByVal wOutputVal  
As Integer)  
Declare Function A826_InputByte Lib "A826.DLL" (ByVal wPortAddr As Integer) As Integer  
Declare Function A826_InputWord Lib "A826.DLL" (ByVal wPortAddr As Integer) As Integer  
'******* IRQ Functions ***********  
Declare Function A826_InstallIrq Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wIrq As Integer, hEvent As Long, ByVal dwCount As Integer) As Integer  
Declare Function A826_GetIntCount Lib "A826.DLL" (dwVal As Long) As Integer  
Declare Function A826_GetBuffer Lib "A826.DLL" (ByVal dwNum As Long, _  
wBuffer As Integer) As Integer  
Declare Function A826_AD_INT_Start Lib "A826.DLL" (ByVal Ch As Integer, _  
ByVal Gain As Integer, ByVal c1 As Integer, ByVal c2 As Integer) As Integer  
Declare Function A826_AD_INT_Stop Lib "A826.DLL" () As Integer  
Declare Function A826_GetFloatBuffer Lib "A826.DLL" (ByVal dwNum As Long, _  
fBuffer As Single) As Integer  
'******* DMA Functions ***********  
Declare Function A826_AD_DMA_InstallIrq Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wIrq As Integer, ByVal wDmaChan As Integer) As Integer  
Declare Function A826_AD_DMA_RemoveIrq Lib "A826.DLL" () As Integer  
Declare Function A826_AD_DMA_Start Lib "A826.DLL" (ByVal Ch As Integer, _  
ByVal Gain As Integer, ByVal c1 As Integer, ByVal c2 As Integer, _  
ByVal cnt As Integer, wPassOut As Integer) As Integer  
Declare Function A826_AD_DMA_Stop Lib "A826.DLL" () As Integer  
Declare Function A826_AD_DMA_IsNotFinished Lib "A826.DLL" () As Integer  
Declare Function A826_AD_DMA_GetBuffer Lib "A826.DLL" (wBuf As Integer) As Integer  
Declare Function A826_AD_DMA_GetFloatBuffer Lib "A826.DLL" (fBuf As Single) As Integer  
Date: Aug-15-2000  
Ver: 2.2  
Page 17  
 
OME-A-826PG Software Manual [Win 95/98/NT]  
2.2.2  
A826.BAS (for Win NT)  
Attribute VB_Name = "A826"  
'*********************************************************************************  
'
The Declare of A826.DLL for A826 DAQ Card  
'*********************************************************************************  
Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)  
'***************** DEFINE A826 RELATIVE ADDRESS *****************  
Global Const TIMER0  
Global Const Timer1  
Global Const TIMER2  
Global Const TIMER_MODE  
Global Const AD_LO  
= &H0  
= &H1  
= &H2  
= &H3  
= &H4  
= &H5  
= &H4  
= &H5  
= &H6  
= &H7  
= &H6  
= &HD  
'* Analog to Digital, Low Byte *  
'* Analog to Digital, High Byte *  
'* Digit to Analog, CH 0 *  
Global Const AD_HI  
Global Const DA_CH0_LO  
Global Const DA_CH0_HI  
Global Const DA_CH1_LO  
Global Const DA_CH1_HI  
Global Const DI_LO  
'* Digit to Analog, CH 1 *  
'* Digit Input *  
'* Digit Output *  
Global Const DO_LO  
Global Const CLEAR_IRQ  
Global Const SET_GAIN  
Global Const SET_CH  
Global Const SET_MODE  
Global Const SOFT_TRIG  
= &H8  
= &H9  
= &HA  
= &HB  
= &HC  
Global Const POLLING_MODE  
Global Const DMA_MODE  
Global Const INTERRUPT_MODE  
= 1  
= 2  
= 6  
'*** define the gain mode ***  
Global Const A826_BI_1  
Global Const A826_BI_10  
Global Const A826_BI_100  
Global Const A826_BI_1000  
Global Const A826_UNI_1  
Global Const A826_UNI_10  
Global Const A826_UNI_100  
Global Const A826_UNI_1000  
Global Const A826_BI_05  
Global Const A826_BI_5  
Global Const A826_BI_50  
Global Const A826_BI_500  
= 0  
= 1  
= 2  
= 3  
= 4  
= 5  
= 6  
= 7  
= 8  
= 9  
= 10  
= 11  
Global Const A826_BI_2  
Global Const A826_BI_4  
Global Const A826_BI_8  
Global Const A826_UNI_2  
Global Const A826_UNI_4  
Global Const A826_UNI_8  
= 1  
= 2  
= 3  
= 5  
= 6  
= 7  
Date: Aug-15-2000  
Ver: 2.2  
Page 18  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
Global Const NoError  
= 0  
Global Const DriverOpenError  
Global Const DriverNoOpen  
Global Const GetDriverVersionError  
Global Const InstallIrqError  
Global Const ClearIntCountError  
Global Const GetIntCountError  
Global Const AdError1  
= 1  
= 2  
= 3  
= 4  
= 5  
= 6  
= 100  
= -200#  
= 9  
= 10  
= 11  
= 12  
= 13  
= 14  
Global Const AdError2  
Global Const InstallBufError  
Global Const AllocateMemoryError  
Global Const CardTypeError  
Global Const GetBufferError  
Global Const TimeoutError  
Global Const OtherError  
'******* Test Functions ***********  
Declare Function SHORT_SUB_2 Lib "A826.DLL" (ByVal nA As Integer, _  
ByVal nB As Integer) As Integer  
Declare Function FLOAT_SUB_2 Lib "A826.DLL" (ByVal fA As Single, _  
ByVal fB As Single) As Single  
Declare Function A826_Get_DLL_Version Lib "A826.DLL" () As Integer  
Declare Function A826_GetDriverVersion Lib "A826.DLL" _  
(wDriverVersion As Integer) As Integer  
'******* DI/DO Functions ***********  
Declare Function A826_DI Lib "A826.DLL" (ByVal wBase As Integer) As Integer  
Declare Sub A826_DO Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wHexValue As Integer)  
'******* AD/DA Functions ***********  
Declare Function A826_AD Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wChannel As Integer, ByVal wConfig As Integer) As Single  
Declare Function A826_ADs_Hex Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wChannel As Integer, ByVal wConfig As Integer, _  
wBuf As Integer, ByVal wCount As Integer) As Integer  
Declare Function A826_ADs_Float Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wChannel As Integer, ByVal wConfig As Integer, _  
fBuf As Single, ByVal wCount As Integer) As Integer  
Declare Sub A826_DA Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wChannel As Integer, ByVal wHexValue As Integer)  
Declare Sub A826_Uni5_DA Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wChannel As Integer, ByVal fValue As Single)  
Declare Sub A826_Uni10_DA Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wChannel As Integer, ByVal fValue As Single)  
Date: Aug-15-2000  
Ver: 2.2  
Page 19  
 
OME-A-826PG Software Manual [Win 95/98/NT]  
'******* Driver Functions ***********  
Declare Function A826_DriverInit Lib "A826.DLL" () As Integer  
Declare Sub A826_DriverClose Lib "A826.DLL" ()  
Declare Function A826_DELAY Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wDownCount As Integer) As Integer  
Declare Function A826_Check_Address Lib "A826.DLL" (ByVal wBase As Integer) As Integer  
Declare Sub A826_OutputByte Lib "A826.DLL" (ByVal wPortAddr As Integer, ByVal bOutputVal  
As Byte)  
Declare Sub A826_OutputWord Lib "A826.DLL" (ByVal wPortAddr As Integer, ByVal wOutputVal  
As Integer)  
Declare Function A826_InputByte Lib "A826.DLL" (ByVal wPortAddr As Integer) As Integer  
Declare Function A826_InputWord Lib "A826.DLL" (ByVal wPortAddr As Integer) As Integer  
'******* IRQ Functions ***********  
Declare Function A826_InstallIrq Lib "A826.DLL" (ByVal wBase As Integer, _  
ByVal wIrq As Integer, hEvent As Long, ByVal dwCount As Integer) As Integer  
Declare Function A826_GetIntCount Lib "A826.DLL" (dwVal As Long) As Integer  
Declare Function A826_GetBuffer Lib "A826.DLL" (ByVal dwNum As Long, _  
wBuffer As Integer) As Integer  
Declare Function A826_AD_INT_Start Lib "A826.DLL" (ByVal Ch As Integer, _  
ByVal Gain As Integer, ByVal c1 As Integer, ByVal c2 As Integer) As Integer  
Declare Function A826_AD_INT_Stop Lib "A826.DLL" () As Integer  
Declare Function A826_GetFloatBuffer Lib "A826.DLL" (ByVal dwNum As Long, _  
fBuffer As Single) As Integer  
Date: Aug-15-2000  
Ver: 2.2  
Page 20  
 
OME-A-826PG Software Manual [Win 95/98/NT]  
2.2.3  
A826U.BAS  
Attribute VB_Name = "A826u"  
'*-----------------------------------------------------*  
'* Return voltage value or -100.0 if any error occurs *  
'* or parameter is out of range.  
'* Gain : 0-3  
*
'*-----------------------------------------------------*  
Function A826_AD2F(ByVal hex As Integer, ByVal Gain As Integer) As Single  
Dim ZeroBase, BullRange, VoltageRange As Single  
ZeroBase = 0#  
FullRange = 32767#  
VoltageRange = 10#  
Gain = Gain Mod 16  
If Gain < 0 Or Gain > 3 Then  
A826_AD2F = -100#  
Exit Function  
End If  
A826_AD2F = ((((hex - ZeroBase) / FullRange) * VoltageRange) / (2 ^ Gain))  
End Function  
2.2.4  
The VB Demo Result:  
Date: Aug-15-2000  
Ver: 2.2  
Page 21  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
2.3 For The Delphi user  
2.3.1  
A826.PAS (for Win 95/98)  
unit A826;  
interface  
type PSingle=^Single;  
type PWord=^Word;  
type PInteger=^Integer;  
type PSmallInt=^PSmallInt;  
const  
//***************** DEFINE A826 RELATIVE ADDRESS *****************/  
TIMER0  
= $00;  
TIMER1  
= $01;  
TIMER2  
= $02;  
TIMER_MODE  
AD_LO  
AD_HI  
DA_CH0_LO  
DA_CH0_HI  
DA_CH1_LO  
DA_CH1_HI  
DI_LO  
= $03;  
= $04; //* Analog to Digital, Low Byte */  
= $05; //* Analog to Digital, High Byte */  
= $04; //* Digit to Analog, CH 0 */  
= $05;  
= $06; //* Digit to Analog, CH 1 */  
= $07;  
= $06; //* Digit Input */  
= $0D; //* Digit Output */  
DO_LO  
CLEAR_IRQ  
SET_GAIN  
SET_CH  
SET_MODE  
SOFT_TRIG  
= $08;  
= $09;  
= $0A;  
= $0B;  
= $0C;  
POLLING_MODE  
DMA_MODE  
= 1;  
= 2;  
INTERRUPT_MODE = 6;  
//*** define the gain mode ***/  
A826_BI_1  
= 0;  
= 1;  
= 2;  
= 3;  
= 4;  
= 5;  
= 6;  
= 7;  
= 8;  
= 9;  
A826_BI_10  
A826_BI_100  
A826_BI_1000  
A826_UNI_1  
A826_UNI_10  
A826_UNI_100  
A826_UNI_1000  
A826_BI_05  
A826_BI_5  
Date: Aug-15-2000  
Ver: 2.2  
Page 22  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
A826_BI_50  
A826_BI_500  
= 10;  
= 11;  
A826_BI_2  
A826_BI_4  
A826_BI_8  
A826_UNI_2  
A826_UNI_4  
A826_UNI_8  
= 1;  
= 2;  
= 3;  
= 5;  
= 6;  
= 7;  
NoError  
DriverOpenError  
DriverNoOpen  
=
=
=
0;  
1;  
2;  
GetDriverVersionError =  
3;  
InstallIrqError  
=
=
=
=
4;  
5;  
6;  
100;  
ClearIntCountError  
GetIntCountError  
AdError1  
AdError2  
= -200.0;  
InstallBufError  
GetBufferError  
INTStartError  
=
=
=
=
=
=
=
=
=
=
=
=
9;  
10;  
11;  
12;  
13;  
14;  
15;  
16;  
17;  
18;  
19;  
20;  
INTStopError  
InstallDmaIrqError  
RemoveDmaIrqError  
DmaStartError  
DmaStopError  
DmaGetDataError  
TimeoutError  
AllocateMemoryError  
OtherError  
//********* Test Functios ************  
Function SHORT_SUB_2(nA, nB : SmallInt):SmallInt; StdCall;  
Function FLOAT_SUB_2(fA, fB : Single):Single; StdCall;  
Function A826_Get_DLL_Version:WORD; StdCall;  
Function A826_GetDriverVersion(var wDriverVersion:WORD):Word; StdCall;  
//********* DI/DO Functios ************  
Function A826_DI(wBase:Word):Word; StdCall;  
Procedure A826_DO(wBase, wHexValue:Word); StdCall;  
//********* DA/AD Functios ************  
Function A826_AD(wBase,wChannel,wConfig:WORD):Single; StdCall;  
Function A826_ADs_Hex(wBase,wChannel,wConfig:WORD; wBuf:PSmallInt;  
wCount:WORD):WORD; StdCall;  
Function A826_ADs_Float(wBase,wChannel,wConfig:WORD; fBuf:PSingle;  
wCount:WORD):WORD; StdCall;  
Procedure A826_DA(wBase, wChannel, wHexValue:WORD); StdCall;  
Procedure A826_Uni5_DA(wBase,wChannel:Word;fValue:Single); StdCall;  
Procedure A826_Uni10_DA(wBase,wChannel:Word;fValue:Single); StdCall;  
Date: Aug-15-2000  
Ver: 2.2  
Page 23  
 
OME-A-826PG Software Manual [Win 95/98/NT]  
//********* Driver Functios ************  
Function A826_DriverInit:WORD; StdCall;  
Procedure A826_DriverClose; StdCall;  
Function A826_DELAY(wBase,wDownCount:WORD):WORD; StdCall;  
Function A826_Check_Address(wBase:WORD):WORD; StdCall;  
Procedure A826_OutputByte(wPortAddr:WORD; bOutputVal:Byte); StdCall;  
Procedure A826_OutputWord(wPortAddr:WORD; wOutputVal:WORD); StdCall;  
Function A826_InputByte(wPortAddr:WORD):WORD; StdCall;  
Function A826_InputWord(wPortAddr:WORD):WORD; StdCall;  
//********* IRQ Functios ************  
Function A826_InstallIrq  
(wBase,wIrq:WORD; var hEvent:LongInt; dwCount:LongInt):WORD; StdCall;  
Function A826_AD_INT_Start(Ch,Gain,c1,c2:WORD):WORD; StdCall;  
Function A826_AD_INT_Stop:WORD; StdCall;  
Function A826_GetIntCount(var dwVal:LongInt):WORD; StdCall;  
Function A826_GetBuffer(dwNum:LongInt; wBuffer:PSmallInt):WORD; StdCall;  
Function A826_GetFloatBuffer(dwNum :LongInt;fBuffer:PSingle):Word; StdCall;  
//********* DMA Functios ************  
Function A826_AD_DMA_InstallIrq(wBase,wIrq,wDmaChan:WORD):WORD; StdCall;  
Function A826_AD_DMA_RemoveIrq:WORD; StdCall;  
Function A826_AD_DMA_Start(Ch,Gain,c1,c2:WORD; cnt:integer; wPassOut:PInteger):WORD;  
StdCall;  
Function A826_AD_DMA_Stop:WORD; StdCall;  
Function A826_AD_DMA_IsNotFinished:WORD; StdCall;  
Function A826_AD_DMA_GetBuffer(wBuf:PSmallInt):WORD; StdCall;  
Function A826_AD_DMA_GetFloatBuffer(fBuf:PSingle):Word; StdCall;  
implementation  
Function SHORT_SUB_2;  
Function FLOAT_SUB_2;  
Function A826_Get_DLL_Version;  
Procedure A826_DA;  
external 'A826.DLL' name 'SHORT_SUB_2';  
external 'A826.DLL' name 'FLOAT_SUB_2';  
external 'A826.DLL' name 'A826_Get_DLL_Version';  
external 'A826.DLL' name 'A826_DA';  
Procedure A826_Uni5_DA;  
Procedure A826_Uni10_DA;  
Procedure A826_DO;  
external 'A826.DLL' name 'A826_Uni5_DA';  
external 'A826.DLL' name 'A826_Uni10_DA';  
external 'A826.DLL' name 'A826_DO';  
Function A826_DI;  
external 'A826.DLL' name 'A826_DI';  
Function A826_AD;  
external 'A826.DLL' name 'A826_AD';  
Function A826_ADs_Hex;  
Function A826_ADs_Float;  
Function A826_DELAY;  
Function A826_Check_Address;  
external 'A826.DLL' name 'A826_ADs_Hex';  
external 'A826.DLL' name 'A826_ADs_Float';  
external 'A826.DLL' name 'A826_DELAY';  
external 'A826.DLL' name 'A826_Check_Address';  
Function A826_DriverInit;  
Procedure A826_DriverClose;  
Procedure A826_OutputByte;  
Procedure A826_OutputWord;  
Function A826_InputByte;  
Function A826_InputWord;  
external 'A826.DLL' name 'A826_DriverInit';  
external 'A826.DLL' name 'A826_DriverClose';  
external 'A826.DLL' name 'A826_OutputByte';  
external 'A826.DLL' name 'A826_OutputWord';  
external 'A826.DLL' name 'A826_InputByte';  
external 'A826.DLL' name 'A826_InputWord';  
Date: Aug-15-2000  
Ver: 2.2  
Page 24  
 
OME-A-826PG Software Manual [Win 95/98/NT]  
Function A826_GetDriverVersion;  
Function A826_InstallIrq;  
external 'A826.DLL' name 'A826_GetDriverVersion';  
external 'A826.DLL' name 'A826_InstallIrq';  
Function A826_GetBuffer;  
external 'A826.DLL' name 'A826_GetBuffer';  
external 'A826.DLL' name 'A826_GetFloatBuffer';  
external 'A826.DLL' name 'A826_GetIntCount';  
external 'A826.DLL' name 'A826_AD_INT_Start';  
external 'A826.DLL' name 'A826_AD_INT_Stop';  
external 'A826.DLL' name 'A826_AD_DMA_InstallIrq';  
Function A826_GetFloatBuffer;  
Function A826_GetIntCount;  
Function A826_AD_INT_Start;  
Function A826_AD_INT_Stop;  
Function A826_AD_DMA_InstallIrq;  
Function A826_AD_DMA_RemoveIrq; external 'A826.DLL' name 'A826_AD_DMA_RemoveIrq';  
Function A826_AD_DMA_Start;  
Function A826_AD_DMA_Stop;  
external 'A826.DLL' name 'A826_AD_DMA_Start';  
external 'A826.DLL' name 'A826_AD_DMA_Stop';  
Function A826_AD_DMA_IsNotFinished; external 'A826.DLL' name  
'A826_AD_DMA_IsNotFinished';  
Function A826_AD_DMA_GetBuffer;  
external 'A826.DLL' name 'A826_AD_DMA_GetBuffer';  
Function A826_AD_DMA_GetFloatBuffer; external 'A826.DLL' name  
'A826_AD_DMA_GetFloatBuffer';  
end.  
Date: Aug-15-2000  
Ver: 2.2  
Page 25  
 
OME-A-826PG Software Manual [Win 95/98/NT]  
2.3.2  
A826.PAS (for Win NT)  
unit A826;  
interface  
type PSingle=^Single;  
type PWord=^Word;  
type PInteger=^Integer;  
type PSmallInt=^PSmallInt;  
const  
//***************** DEFINE A826 RELATIVE ADDRESS *****************/  
TIMER0  
= $00;  
TIMER1  
= $01;  
TIMER2  
= $02;  
TIMER_MODE  
AD_LO  
AD_HI  
DA_CH0_LO  
DA_CH0_HI  
DA_CH1_LO  
DA_CH1_HI  
DI_LO  
= $03;  
= $04; //* Analog to Digital, Low Byte */  
= $05; //* Analog to Digital, High Byte */  
= $04; //* Digit to Analog, CH 0 */  
= $05;  
= $06; //* Digit to Analog, CH 1 */  
= $07;  
= $06; //* Digit Input */  
= $0D; //* Digit Output */  
DO_LO  
CLEAR_IRQ  
SET_GAIN  
SET_CH  
SET_MODE  
SOFT_TRIG  
= $08;  
= $09;  
= $0A;  
= $0B;  
= $0C;  
POLLING_MODE  
DMA_MODE  
= 1;  
= 2;  
INTERRUPT_MODE = 6;  
//*** define the gain mode ***/  
A826_BI_1  
= 0;  
= 1;  
= 2;  
= 3;  
= 4;  
= 5;  
= 6;  
= 7;  
= 8;  
= 9;  
= 10;  
= 11;  
A826_BI_10  
A826_BI_100  
A826_BI_1000  
A826_UNI_1  
A826_UNI_10  
A826_UNI_100  
A826_UNI_1000  
A826_BI_05  
A826_BI_5  
A826_BI_50  
A826_BI_500  
A826_BI_2  
A826_BI_4  
= 1;  
= 2;  
Date: Aug-15-2000  
Ver: 2.2  
Page 26  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
A826_BI_8  
= 3;  
= 5;  
= 6;  
= 7;  
A826_UNI_2  
A826_UNI_4  
A826_UNI_8  
NoError  
DriverOpenError  
DriverNoOpen  
= 0;  
= 1;  
= 2;  
GetDriverVersionError = 3;  
InstallIrqError = 4;  
ClearIntCountError  
GetIntCountError  
AdError1  
= 5;  
= 6;  
= 100;  
= -200.0;  
AdError2  
InstallBufError = 9;  
AllocateMemoryError = 10;  
CardTypeError  
GetBufferError  
TimeoutError  
OtherError  
= 11;  
= 12;  
= 13;  
= 14;  
//********* Test Functios ************  
Function SHORT_SUB_2(nA, nB : SmallInt):SmallInt; StdCall;  
Function FLOAT_SUB_2(fA, fB : Single):Single; StdCall;  
Function A826_Get_DLL_Version:WORD; StdCall;  
Function A826_GetDriverVersion(var wDriverVersion:WORD):Word; StdCall;  
//********* DI/DO Functios ************  
Function A826_DI(wBase:Word):Word; StdCall;  
Procedure A826_DO(wBase, wHexValue:Word); StdCall;  
//********* DA/AD Functios ************  
Function A826_AD(wBase,wChannel,wConfig:WORD):Single; StdCall;  
Function A826_ADs_Hex(wBase,wChannel,wConfig:WORD; wBuf:PSmallInt;  
wCount:WORD):WORD; StdCall;  
Function A826_ADs_Float(wBase,wChannel,wConfig:WORD; fBuf:PSingle;  
wCount:WORD):WORD; StdCall;  
Procedure A826_DA(wBase, wChannel, wHexValue:WORD); StdCall;  
Procedure A826_Uni5_DA(wBase,wChannel:Word;fValue:Single); StdCall;  
Procedure A826_Uni10_DA(wBase,wChannel:Word;fValue:Single); StdCall;  
//********* Driver Functios ************  
Function A826_DriverInit:WORD; StdCall;  
Procedure A826_DriverClose; StdCall;  
Function A826_DELAY(wBase,wDownCount:WORD):WORD; StdCall;  
Function A826_Check_Address(wBase:WORD):WORD; StdCall;  
Procedure A826_OutputByte(wPortAddr:WORD; bOutputVal:Byte); StdCall;  
Procedure A826_OutputWord(wPortAddr:WORD; wOutputVal:WORD); StdCall;  
Function A826_InputByte(wPortAddr:WORD):WORD; StdCall;  
Function A826_InputWord(wPortAddr:WORD):WORD; StdCall;  
Date: Aug-15-2000  
Ver: 2.2  
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//********* IRQ Functios ************  
Function A826_InstallIrq  
(wBase,wIrq:WORD; var hEvent:LongInt; dwCount:LongInt):WORD; StdCall;  
Function A826_AD_INT_Start(Ch,Gain,c1,c2:WORD):WORD; StdCall;  
Function A826_AD_INT_Stop:WORD; StdCall;  
Function A826_GetIntCount(var dwVal:LongInt):WORD; StdCall;  
Function A826_GetBuffer(dwNum:LongInt; wBuffer:PSmallInt):WORD; StdCall;  
Function A826_GetFloatBuffer(dwNum :LongInt;fBuffer:PSingle):Word; StdCall;  
implementation  
Function SHORT_SUB_2;  
Function FLOAT_SUB_2;  
Function A826_Get_DLL_Version;  
Procedure A826_DA;  
external 'A826.DLL' name 'SHORT_SUB_2';  
external 'A826.DLL' name 'FLOAT_SUB_2';  
external 'A826.DLL' name 'A826_Get_DLL_Version';  
external 'A826.DLL' name 'A826_DA';  
Procedure A826_Uni5_DA;  
Procedure A826_Uni10_DA;  
Procedure A826_DO;  
external 'A826.DLL' name 'A826_Uni5_DA';  
external 'A826.DLL' name 'A826_Uni10_DA';  
external 'A826.DLL' name 'A826_DO';  
Function A826_DI;  
external 'A826.DLL' name 'A826_DI';  
Function A826_AD;  
external 'A826.DLL' name 'A826_AD';  
Function A826_ADs_Hex;  
Function A826_ADs_Float;  
Function A826_DELAY;  
Function A826_Check_Address;  
external 'A826.DLL' name 'A826_ADs_Hex';  
external 'A826.DLL' name 'A826_ADs_Float';  
external 'A826.DLL' name 'A826_DELAY';  
external 'A826.DLL' name 'A826_Check_Address';  
Function A826_DriverInit;  
Procedure A826_DriverClose;  
Procedure A826_OutputByte;  
Procedure A826_OutputWord;  
Function A826_InputByte;  
Function A826_InputWord;  
external 'A826.DLL' name 'A826_DriverInit';  
external 'A826.DLL' name 'A826_DriverClose';  
external 'A826.DLL' name 'A826_OutputByte';  
external 'A826.DLL' name 'A826_OutputWord';  
external 'A826.DLL' name 'A826_InputByte';  
external 'A826.DLL' name 'A826_InputWord';  
Function A826_GetDriverVersion;  
Function A826_InstallIrq;  
external 'A826.DLL' name 'A826_GetDriverVersion';  
external 'A826.DLL' name 'A826_InstallIrq';  
Function A826_GetBuffer;  
external 'A826.DLL' name 'A826_GetBuffer';  
external 'A826.DLL' name 'A826_GetFloatBuffer';  
external 'A826.DLL' name 'A826_GetIntCount';  
external 'A826.DLL' name 'A826_AD_INT_Start';  
external 'A826.DLL' name 'A826_AD_INT_Stop';  
Function A826_GetFloatBuffer;  
Function A826_GetIntCount;  
Function A826_AD_INT_Start;  
Function A826_AD_INT_Stop;  
end.  
Date: Aug-15-2000  
Ver: 2.2  
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2.3.3  
unit A826U;  
interface  
A826U.PAS  
type PSingle=^Single;  
type PWord=^Word;  
type PInteger=^Integer;  
type PSmallInt=^PSmallInt;  
Function A826_AD2F(hex, Gain :Word): Single ; StdCall;  
implementation  
uses math;  
//*-----------------------------------------------------*  
//* Return voltage value or -100.0 if any error occurs *  
//* or parameter is out of range.  
//* Gain : 0-3  
*
*
//*-----------------------------------------------------*  
Function A826_AD2F(hex, Gain :Word): Single ;  
Var  
ZeroBase, VoltageRange, FullRange : Single ;  
i : Integer ;  
Begin  
ZeroBase := 0;  
FullRange := 32767;  
VoltageRange := 10;  
i := hex;  
if i > $7FFF then  
i := ((Not hex) + 1) * -1 ;  
Gain := Gain mod 16 ;  
If (Gain < 0) Or (Gain > 3) Then  
begin  
result := -100;  
exit;  
end;  
Result := ((((i - ZeroBase) / FullRange) * VoltageRange) / Power(2, Gain));  
End;  
end.  
Date: Aug-15-2000  
Ver: 2.2  
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2.3.4  
Delphi Demo Result :  
Date: Aug-15-2000  
Ver: 2.2  
Page 30  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
3 Function Description  
These functions in DLL are divided into several groups as follows:  
1. The test functions  
2. The DI/O functions  
3. The AD/DA fixed-mode functions  
4. The Driver functions  
5. The AD Interrupt Mode functions  
6. The AD DMA Mode functions  
The functions of test listing as follows:  
1. SHORT_SUB_2  
2. FLOAT_SUB_2  
3. A826_Get_DLL_Version  
4. A826_GetDriverVersion  
The functions of DI/O listing as follows:  
1. A826_DI  
2. A826_DO  
3. A826_InputByte  
4. A826_InputWord  
5. A826_OutputByte  
6. A826_OutputWord  
The functions of AD/DA listing as follows:  
1. A826_DA  
2. A826_AD  
3. A826_ADs_Hex  
4. A826_ADs_Float  
The functions of Driver listing as follows:  
1. A826_DriverInit  
2. A826_DriverClose  
3. A826_DELAY  
4. A826_Check_Address  
Date: Aug-15-2000  
Ver: 2.2  
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OME-A-826PG Software Manual [Win 95/98/NT]  
The functions of AD Interrupt listing as follows:  
1. A826_InstallIrq  
2. A826_GetIntCount  
3. A826_GetBuffer  
4. A826_AD_INT_Start  
5. A826_AD_INT_Stop  
6. A826_GetFloatBuffer  
The functions of AD DMA listing as follows:  
1. A826_AD_DMA_InstallIrq  
2. A826_AD_DMA_RemoveIrq  
3. A826_AD_DMA_Start  
4. A826_AD_DMA_Stop  
5. A826_AD_DMA_IsNotFinished  
6. A826_AD_DMA_GetBuffer  
7. A826_AD_DMA_GetFloatBuffer  
(The DMA function supports the Windows 95/98 only.)  
In this chapter, we use some keywords to indicate the attribute of Parameters.  
Keyword  
Setting parameter by user  
before calling this function ?  
Get the data/value  
from this parameter  
after calling this function ?  
[Input]  
[Output]  
[Input, Output]  
Yes  
No  
Yes  
No  
Yes  
Yes  
Date: Aug-15-2000  
Ver: 2.2  
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3.1 TEST Function  
3.1.1  
SHORT_SUB_2  
z Description :  
Compute C=nA-nB in short format, Short=16 bits sign integer.  
This function is provided for testing purpose.  
z Syntax :  
short SHORT_SUB_2(short nA, short nB);  
z Parameter :  
nA : [Input] Short  
nB : [Input] Short  
z Return Value :  
Return = nA - nB Î Short  
3.1.2  
FLOAT_SUB_2  
z Description :  
Compute C=fA-fB in float format, float=32 bits floating pointer  
number. This function is provided for testing purpose.  
z Syntax :  
float FLOAT_SUB_2(float fA, float fB)  
z Parameter :  
fA : [Input] Double value  
fB : [Input] Double value  
z Return Value :  
return= fA - fB Î float value  
Date: Aug-15-2000  
Ver: 2.2  
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3.1.3  
A826_Get_DLL_Version  
z Description :  
Read the software version  
z Syntax :  
WORD A826_Get_DLL_Version(void);  
z Parameter :  
Void  
z Return Value :  
return=0x100 Î Version 1.0  
3.1.4  
A826_GetDriverVersion  
z Description :  
This subroutine will get the version number about the virtual device driver.  
z Syntax :  
WORD A826_GetDriverVersion (WORD *wDriverVersion );  
z Parameter :  
*wDriverVersion  
: [Output] the address of wDriverVersion.  
When wDriverVersion=0x210 version 2.10  
z Return Value :  
NoError  
: successful in opening the device driver  
: fail in opening the device driver.  
GetDriverVersionError  
Date: Aug-15-2000  
Ver: 2.2  
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3.2 DI/DO Function  
3.2.1  
A826_Di  
Description :  
This subroutine will read the 16 bits data from the digital input port.  
Syntax :  
WORD A826_DI(WORD wBase);  
Parameter :  
wBase : [Input] I/O port base address, for example, 0x220  
Return Value :  
16 bits data read from the digital input port  
3.2.2  
A826_Do  
Description :  
This subroutine will send the 16 bits data to digital output port.  
Syntax :  
void A826_DO(WORD wBase, WORD wHexValue);  
Parameter :  
wBase  
: [Input] I/O port base address, for example, 0x220  
: [Input] 16 bits data send to digital output port  
wHexValue  
Return Value :  
Void  
Date: Aug-15-2000  
Ver: 2.2  
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3.2.3  
A826_OutputByte  
Description :  
This subroutine will send the 8 bits data to the desired I/O port.  
Syntax :  
void A826_OutputByte(WORD wPortAddr, UCHAR bOutputVal);  
Parameter :  
wPortAddr  
bOutputVal  
: [Input] I/O port address, for example, 0x220  
: [Input] 8 bits data send to I/O port  
Return Value :  
void  
3.2.4  
A826_OutputWord  
Description :  
This subroutine will send the 16 bits data to the desired I/O port.  
Syntax :  
void A826_OutputByte(WORD wPortAddr, WORD wOutputVal);  
Parameter :  
wPortAddr  
: [Input] I/O port address, for example, 0x220  
: [Input] 16 bits data send to I/O port  
wOutputVal  
Return Value :  
void  
Date: Aug-15-2000  
Ver: 2.2  
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3.2.5  
A826_InputByte  
Description :  
This subroutine will input the 8 bits data from the desired I/O port.  
Syntax :  
WORD A826_InputByte(WORD wPortAddr);  
Parameter :  
wPortAddr  
: [Input] I/O port address, for example, 0x220  
Return Value :  
16 bits data with the leading 8 bits are all 0  
3.2.6  
A826_InputWord  
Description :  
This subroutine will input the 16 bits data from the desired I/O port.  
Syntax :  
WORD DIO_InputWord(WORD wPortAddr);  
Parameter :  
wPortAddr  
: [Input] I/O port address, for example, 0x220  
Return Value :  
16 bits data.  
Date: Aug-15-2000  
Ver: 2.2  
Page 37  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
3.3 A/D , D/A Functions  
3.3.1  
A826_AD  
Description :  
This subroutine will perform a A/D conversion by polling. The A/D converter is  
16 bits for A82PG. This subroutine will compute the result according to the  
configuration code.  
Syntax :  
float A826_AD(WORD wBase, WORD wChannel, WORD wConfig);  
Parameter :  
wBase  
: [Input] I/O port base address, for example, 0x220  
: [Input] A/D channel number,  
wChannel  
wConfig  
: [Input] Configuration code, refer to 1.2 for detail information  
Return Value :  
AdError2  
: A/D converter error  
Other value  
: The floating point value of A/D conversion  
3.3.2  
A826_DA  
Description :  
This subroutine will send the 16 bits data to D/A analog output. The output  
range of D/A maybe 0 to 5V or 0 to10V setting by hardware jumper, JP1. The  
software can not detect the output range of D/A converter. For examples, if  
hardware select -5V, the 0xfff will send out 5V. If hardware select -10V, the  
0xfff will send out 10V. The factory setting select 0-5V D/A output range.  
Syntax :  
WORD A826_DA(WORD wBase, WORD wChannel, WORD wHexValue);  
Parameter :  
wBase  
: [Input] I/O port base address, for example, 0x220  
: [Input] D/A channel number, validate for 0  
: [Input] 16 bits data send to D/A converter  
wChannel  
wHexValue  
Return Value :  
NoError  
: no error  
DaChannelError  
: wChannel value error, validate only for 0  
Date: Aug-15-2000  
Ver: 2.2  
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OME-A-826PG Software Manual [Win 95/98/NT]  
3.3.3  
A826_ADs_Hex  
Description :  
This subroutine will perform a number of A/D conversions by polling. This  
subroutine is very similar to A826_AD except that this subroutine will perform  
wCount of conversions instead of just one conversion. The A/D conversing at the  
ISA bus’s max. speed. The sampling rate is about 90K samples/second which  
testing under Pentium-133 CPU. After A/D conversing, the A/D data are stored in  
a buffer in Hex format. The wBuf is the starting address of this data buffer.  
Syntax :  
WORD A826_ADs_Hex(WORD wBase, WORD wChannel, WORD  
wConfig,short wBuf[], WORD wCount);  
Parameter :  
wBase  
: [Input] I/O port base address, for example, 0x220  
: [Input] A/D channel number  
: [Input] Configuration code,  
wChannel  
wConfig  
please refer to Section 1.2 for detail information  
: [Output] Starting address of the data buffer  
: [Input] Number of A/D conversions will be performed  
wBuf  
wCount  
Return Value :  
AdError1  
: A/D converter error  
: Operation is OK  
NoError  
Date: Aug-15-2000  
Ver: 2.2  
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3.3.4  
A826_ADs_Float  
Description :  
This subroutine will perform a number of A/D conversions by polling. This  
subroutine is very similar to A826_AD except that this subroutine will perform  
wCount of conversions instead of just one conversion. The A/D conversing at the  
ISA bus’s max. speed. The sampling rate is about 90K samples/second which  
testing under Pentium-133 CPU. Then the A/D data are stored in a data buffer in  
Float format. The fBuf is the starting address of this data buffer.  
Syntax :  
WORD A826_ADs_Float(WORD wBase, WORD wChannel, WORD wConfig,  
float fBuf[], WORD wCount);  
Parameter :  
wBase  
wChannel  
wConfig  
fBuf  
: [Input] I/O port base address, for example, 0x220  
: [Input] A/D channel number  
: [Input] Configuration code, refer to 1.2 for detail information  
: [Output] Starting address of the data buffer  
(in float format)  
wCount  
: [Input] Number of A/D conversions will be performed  
Return Value :  
AdError1  
: A/D converter error  
: Operation is OK  
NoError  
Date: Aug-15-2000  
Ver: 2.2  
Page 40  
 
 
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3.3.5  
A826_Uni5_DA  
Description :  
This subroutine will send the 16 bits data to D/A analog output. The output  
range of D/A dependent on setting by hardware jumper, JP1 ( -5v or –10v),  
JP10/JP11 (Bipolar or Unipolar). The software can not detect the output range  
of D/A converter. This subroutine can be used only when the jumpers settings  
are : Unipolar , -5v . The output range is between 0.0v and 5.0v. Please refer  
to hardware manual to setting jumpers.  
Syntax :  
void A826_Uni5_DA(WORD wBase, WORD wChannel, float fValue);  
Parameter :  
wBase  
: [Input] I/O port base address, for example, 0x220  
: [Input] D/A channel number, validate for 0  
: [Input] 16 bits data send to D/A converter  
wChannel  
fValue  
Return Value :  
void  
3.3.6  
A826_Uni10_DA  
Description :  
This subroutine will send the 16 bits data to D/A analog output. The output  
range of D/A dependent on setting by hardware jumper, JP1 ( -5v or –10v),  
JP10/JP11 (Bipolar or Unipolar). The software can not detect the output range  
of D/A converter. This subroutine can be used only when the jumpers settings  
are: Unipolar , -10v. The output range is between 0.0v and 10.0v. Please  
refer to hardware manual to setting jumpers.  
Syntax :  
void A826_Uni10_DA(WORD wBase, WORD wChannel, float fValue);  
Parameter :  
wBase  
: [Input] I/O port base address, for example, 0x220  
: [Input] D/A channel number, validate for 0  
: [Input] 16 bits data send to D/A converter  
wChannel  
fValue  
Return Value :  
void  
Date: Aug-15-2000  
Ver: 2.2  
Page 41  
 
 
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3.4 Driver Functions  
3.4.1  
A826_DriverInit  
z Description :  
This subroutine will open the device driver.  
z Syntax :  
WORD A826_DriverInit (void);  
z Parameter :  
Void  
z Return Value :  
NoError  
: successful in opening the device driver  
: fail in opening the device driver.  
DriverOpenError  
3.4.2  
A826_DriverClose  
z Description :  
This subroutine will close the virtual device driver.  
z Syntax:  
void A826_DriverClose(void);  
z Parameter:  
void  
z Return Value:  
void  
Date: Aug-15-2000  
Ver: 2.2  
Page 42  
 
 
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3.4.3  
A826_DELAY  
Description:  
This subroutine will delay wDownCount mS(machine independent timer).  
z Syntax:  
WORD A826_DELAY(WORD wBase, WORD wDownCount);  
Parameter:  
wBase  
: [Input] I/O port base address, for example, 0x220  
: [Input] Number of mS will be delay  
wDownCount  
Return Value:  
NoError  
: Operation OK  
AdError1  
: Operation failure  
3.4.4  
A826_Check_Address  
Description:  
This subroutine will detect the A-826PG in I/O base address = wBase.  
This subroutine will perform one A/D conversion, if success Æ find a A-826PG.  
z Syntax:  
WORD A826_Check_Address(WORD wBase);  
Parameter:  
wBase  
: [Input] I/O port base address, for example, 0x220  
Return Value:  
NoError  
: Find a A-826PG OK  
: Operation failure  
AdError1  
Date: Aug-15-2000  
Ver: 2.2  
Page 43  
 
 
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3.5 AD, Interrupt functions  
3.5.1  
A826_InstallIrq  
z Description:  
This subroutine will install interrupt handler for a specific IRQ level n.  
z Syntax:  
WORD A826_InstallIrq(WORD wBase, WORD wIrq,  
HANDLE *hEvent, DWORD dwCount );  
z Parameter:  
wBase  
: [Input] The I/O port base address for A826 card.  
: [Input] The IRQ level .  
wIrq  
hEvent  
dwCount  
: [Input] The handle of event object that created by user.  
: [Input] The desired A/D entries count for interrupt transfer.  
z Return Value:  
NoError  
: successful  
InstallIrqError: fail in install IRQ handler.  
3.5.2  
A826_AD_INT_Start  
z Description:  
This subroutine will start the interrupt transfer for a specific A/D channel  
and programming the gain code and sampling rate..  
z Syntax:  
WORD A826_AD_INT_Start(WORD Ch, WORD Gain, WORD c1, Word c2 )  
z Parameter:  
Ch  
Gain  
c1,c2  
: [Input] the A/D channel.  
: [Input] the Gain  
: [Input] the sampling rate is 2M/(c1*c2)  
z Return Value:  
NoError  
: successful  
INTStartError : fail  
Date: Aug-15-2000  
Ver: 2.2  
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3.5.3  
A826_AD_INT_Stop  
z Description:  
This subroutine will stop the interrupt transfer and remove the installed  
interrupt handler.  
z Syntax:  
WORD A826_AD_INT_Stop(void )  
z Parameter:  
void.  
z Return Value:  
NoError  
: successful  
INTStopError : fail  
3.5.4  
A826_GetIntCount  
z Description:  
This subroutine will read the transferred count of interrupt.  
z Syntax:  
WORD A826_GetIntCount(DWORD *dwVal )  
z Parameter:  
*dwVal  
: [Output] the address of dwVal,  
the dwVal is the interrupt transferred count.  
z Return Value:  
NoError  
: successful  
GetIntCountError  
: fail get interrupt count.  
Date: Aug-15-2000  
Ver: 2.2  
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3.5.5  
A826_GetBuffer  
z Description:  
This subroutine will copy the transferred interrupted data into the user’s  
buffer.  
z Syntax:  
WORD A826_GetBuffer(DWORD dwNum, short wBuffer[] )  
z Parameter:  
dwNum  
: [Input]  
: [Output]  
the entry no to transfer.  
the address of wBuffer,  
*wBuffer  
z Return Value:  
NoError  
: successful  
: fail  
GetBufferError  
3.5.6  
A826_GetFloatBuffer  
z Description:  
This subroutine will copy the transferred interrupted data into the user’s  
buffer.  
z Syntax:  
WORD A826_GetFloatBuffer(DWORD dwNum, float fBuffer[] )  
z Parameter:  
dwNum  
*fBuffer  
: [Input]  
: [Output]  
the entry no to transfer.  
the address of fBuffer,  
z Return Value:  
NoError  
: successful  
: fail  
GetBufferError  
Date: Aug-15-2000  
Ver: 2.2  
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3.5.7  
Diagram of Interrupt Mode  
The 3.5.1 to 3.5.6 are functions to perform the A/D conversion with  
interrupt transfer. The flow chart to program these function is giver as follows:  
A826_DriverInit  
CreateEvent(…)  
A826_InstallIrq( … )  
………  
Initialize the Device-Driver  
Install the IRQ  
Start the Interrupt Transfer  
A826_AD_INT_Start( … )  
……  
Waiting for the signaled event  
object.  
WaitForSingleObject( …. )  
………..  
To copy data into user's buffer  
A826_GetBuffer( …. )  
……  
Stop the interrupt transfer and  
remove the interrupt handler.  
A826_AD_INT_Stop  
CloseHandle( hEvent )  
A826_DriverClose  
Close the Device-Driver  
Date: Aug-15-2000  
Ver: 2.2  
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Using A826_InstallIrq(…) to install a  
interrupt handler for IRQ level n that to  
transfer A/D data by interrupt.  
Next Loop  
Using A826_AD_INT_Start to specify the  
A/D channel, gain and sampling rate for this  
interrupt transfer, then beginning this transfer.  
sampling rate defined by c1,c2  
A buffer(ex. BufferA) in Driver will  
store the interrupt transferd data. The  
buffer is in system area.  
ADC  
Waiting for the signaled event object by  
using WaitForSingleObject( )  
INT_Handler( )  
BufferA  
No  
System  
Area  
Yes  
To copy datas in bufferA to a user  
defined buffer(ex. BufferB) by using  
A826_GetBuffer(..) Then the user can  
analysis these data in BufferB  
BufferB  
Application  
Area  
Using the A826_AD_INT_Stop() to stop  
the interrupt transfer and remove the  
interrupt handler.  
Date: Aug-15-2000  
Ver: 2.2  
Page 48  
 
OME-A-826PG Software Manual [Win 95/98/NT]  
3.6 AD , DMA functions  
The DMA mechanism supports the Windows 95/98 only.  
3.6.1  
A826_AD_DMA_InstallIrq  
z Description:  
This subroutine will install interrupt handler for a specific IRQ Level n and  
programming a DMA controller (8237) to handle DMA transfer for DMA Channel  
n. Usually, when a DMA transfer finished, a associated IRQ level n occur.  
z Syntax:  
WORD A826_AD_DMA_InstallIrq(WORD wBase, WORD wIrq, WORD  
wDmaChannel );  
z Parameter:  
wBase  
wIrq  
: [Input] the I/O port base address for A826 card.  
: [Input] the IRQ level n.  
wDmaChannel : [Input] the DMA channel.  
Usuallly, the wDmaChannel is 1 or 3.  
z Return Value:  
NoError  
: successful in installing the handler  
: failure  
InstallDMAIrqError  
3.6.2  
A826_AD_DMA_RemoveIrq  
z Description:  
This subroutine will remove the interrupt handler installed by.  
A826_AD_DMA_InstallIrq(…).  
z Syntax:  
WORD A826_AD_DMA_RemoveIrq(void )  
z Parameter:  
void  
z Return Value:  
NoError  
: successful  
RemoveDmaIrqError : failure  
Date: Aug-15-2000  
Ver: 2.2  
Page 49  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
3.6.3  
A826_AD_DMA_Start  
z Description:  
This subroutine will allocate a DMA buffer in the system area, and  
programming the gain code and sampling rate. then starting the DMA transfer for  
a specific A/D channel.  
z Syntax:  
WORD A826_AD_DMA_Start(WORD Ch, WORD Gain, WORD c1, Word c2,  
int Count, WORD wPassOut[ ] )  
z Parameter:  
Ch  
: [Input] the A/D channel.  
Gain  
: [Input] the Gain code  
c1,c2  
Count  
wPassOut[]  
: [Input] the DMA sampling rate is 2M/(c1*c2)  
: [Input] the desired A/D entries count for DMA transfer.  
: [Output] the debug information.  
wPassOut[0] : [Output]  
0: successful in starting DMA transfer.  
others: fail in starting DMA transfer.  
wPassOut[1] : [Output] system DMA buffer ID.  
wPassOut[2] : [Output] the I/O port base address.  
wPassOut[3] : [Output] the IRQ level for DMA.  
wPassOut[4] : [Output] the DMA channel no.  
wPassOut[5] : [Output] reserved.  
wPassOut[6] : [Output] reserved.  
wPassOut[7] : [Output] reserved.  
wPassOut[8] : [Output] the last 16 bits of physical address  
for DMA buffer in system area.  
wPassOut[9] : [Output] the first 16 bits of physical address  
for DMA buffer in system area.  
z Return Value:  
NoError  
DmaStartError  
: successful  
: failure  
Date: Aug-15-2000  
Ver: 2.2  
Page 50  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
3.6.4  
A826_AD_DMA_Stop  
z Description:  
This subroutine will free the allocated DMA buffer that in system area.  
z Syntax:  
WORD A826_AD_DMA_Stop(void )  
z Parameter:  
void.  
z Return Value:  
NoError  
: successful  
DmaStopError : fail  
3.6.5  
A826_AD_DMA_IsNotFinished  
z Description:  
This subroutine is to detect if the DMA have finished.  
z Syntax:  
WORD A826_AD_DMA_IsNotFinished(void )  
z Parameter:  
void.  
z Return Value:  
0: the DMA transfer is finish.  
1: the DMA transfer is proceeding.  
Date: Aug-15-2000  
Ver: 2.2  
Page 51  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
3.6.6  
A826_AD_DMA_GetBuffer  
z Description:  
This subroutine will copy the transferred DMA data into the user’s buffer.  
z Syntax:  
WORD A826_AD_DMA_GetBuffer( short wBuffer[] )  
z Parameter:  
*wBuffer  
: [Output] the address of wBuffer,  
z Return Value:  
The returned bytes no  
DmaGetDataError  
: when successful  
: failure  
3.6.7  
A826_AD_DMA_GetFloatBuffer  
z Description:  
This subroutine will copy the transferred DMA data into the user’s buffer.  
z Syntax:  
WORD A826_AD_DMA_GetfloatBuffer( float fBuf[] )  
z Parameter:  
*fBuf  
: [Output] the address of fBuf  
z Return Value:  
The returned bytes no  
DmaGetDataError  
: when successful  
: failure  
Date: Aug-15-2000  
Ver: 2.2  
Page 52  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
3.6.8  
Diagram of AD , DMA Mode  
The 3.6.1 to 3.6.7 are functions to perform the A/D conversion with DMA  
transfer. The flow chart to program these function is giver as follows:  
Initialize the Device-Driver  
Install the IRQ  
Start the Interrupt Transfer  
Check if finished of data transfer.  
To copy data into user's buffer  
Stop the interrupt transfer  
Remove the interrupt handler.  
Close the Device-Driver  
Date: Aug-15-2000  
Ver: 2.2  
Page 53  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
Using A826_AD_DMA_InstallIrq(…) to  
install a interrupt handler for IRQ level n and  
programming the DMA controller.  
Next Loop  
Using A826_AD_DMA_Start to allocate a  
system DMA buffer and programming  
sampling rate, desired transfer count then  
starting the DMA.  
Sampling rate define by c1,c2  
A buffer(ex. BufferA) in VxD will store  
the DMA transferd data. The buffer is in  
system area.  
ADC  
8237  
To test if DMA transfer is finish ?  
(Using  
A826_AD_DMA_IsNotFinished(..)  
Function)  
INT_Handler( )  
BufferA  
system  
area  
No  
Yes  
To copy datas in bufferA to a user  
defined buffer(ex. BufferB) by using  
A826_AD_DMA_GetData(..) . Then the  
user can analysis these data in BufferB  
BufferB  
Application  
area  
Using the A826_AD_DMA_Stop() to  
release system DMA buffer.  
Using the A826_AD_DMA_RemoveIrq()  
to remove IRQ handler.  
Date: Aug-15-2000  
Ver: 2.2  
Page 54  
 
OME-A-826PG Software Manual [Win 95/98/NT]  
4 Program Architecture  
Initialize the Device-Driver  
A826_DriverInit()  
….  
A826_InputByte( … )  
……..  
……..  
Access/Control the Device  
Access/Control the Device  
A826_OutputByte(…)  
…..  
A826_DriverClose()  
Close the Device-Driver  
User's Application  
Function Call into DLLs  
Development  
Toolkit  
DLLs  
Services Call into Kernel-Mode  
.VXDs, .SYSs (Device Driver)  
Device Control  
Hardware Devices  
Date: Aug-15-2000  
Ver: 2.2  
Page 55  
 
 
OME-A-826PG Software Manual [Win 95/98/NT]  
5 Contact Us  
Technical support is available at no charge as described below. The best  
way to report problems is send electronic mail to [email protected] on the  
Internet.  
When reporting problems, please include the following information:  
1) Is the problem reproducible? If so, how?  
2) What kind and version of Operation Systems that you running? For example,  
Windows 3.1, Windows for Workgroups, Windows NT 4.0, etc.  
3) What kinds of our products that you using? Please see the product's manual.  
4) If a dialog box with an error message was displayed, please include the full  
text of the dialog box, including the text in the title bar.  
5) If the problem involves other programs or hardware devices, what devices or  
version of the failing programs that you using?  
6) Other comments relative to this problem or any Suggestions will be welcomed.  
After we received your comments, we will take about two business days to  
testing the problems that you said. And then reply as soon as possible to you.  
Please check that we have received your comments? And please keeping  
contact with us.  
Date: Aug-15-2000  
Ver: 2.2  
Page 56  
 
 
WARRANTY/DISCLAIMER  
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a  
period of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month  
grace period to the normal one (1) year product warranty to cover handling and shipping time. This  
ensures that OMEGA’s customers receive maximum coverage on each product.  
If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service  
Department will issue an Authorized Return (AR) number immediately upon phone or written request.  
Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no  
charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser,  
including but not limited to mishandling, improper interfacing, operation outside of design limits,  
improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of  
having been tampered with or shows evidence of having been damaged as a result of excessive corrosion;  
or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating  
conditions outside of OMEGA’s control. Components which wear are not warranted, including but not  
limited to contact points, fuses, and triacs.  
OMEGA is pleased to offer suggestions on the use of its various products. However,  
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any  
damages that result from the use of its products in accordance with information provided by  
OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by it will be  
as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR  
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS OR IMPLIED, EXCEPT THAT OF TITLE,  
AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND  
FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF  
LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of  
OMEGA with respect to this order, whether based on contract, warranty, negligence,  
indemnification, strict liability or otherwise, shall not exceed the purchase price of the  
component upon which liability is based. In no event shall OMEGA be liable for  
consequential, incidental or special damages.  
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic  
Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical  
applications or used on humans. Should any Product(s) be used in or with any nuclear installation or  
activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility  
as set forth in our basic WARRANTY/DISCLAIMER language, and, additionally, purchaser will indemnify  
OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the  
Product(s) in such a manner.  
RETURN REQUESTS/INQUIRIES  
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE  
RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN  
(AR) NUMBER FROM OMEGAS CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID  
PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return  
package and on any correspondence.  
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent  
breakage in transit.  
FOR WARRANTY RETURNS, please have the  
following information available BEFORE  
contacting OMEGA:  
FOR NON-WARRANTY REPAIRS, consult OMEGA  
for current repair charges. Have the following  
information available BEFORE contacting OMEGA:  
1. Purchase Order number under which the product  
was PURCHASED,  
1. Purchase Order number to cover the COST  
of the repair,  
2. Model and serial number of the product under  
warranty, and  
3. Repair instructions and/or specific problems  
relative to the product.  
2. Model and serial number of the product, and  
3. Repair instructions and/or specific problems  
relative to the product.  
OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords  
our customers the latest in technology and engineering.  
OMEGA is a registered trademark of OMEGA ENGINEERING, INC.  
© Copyright 2002 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,  
reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the  
prior written consent of OMEGA ENGINEERING, INC.  
 
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