HP manual 22 9112ADINTStart

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5.22 _9112_AD_INT_Start

uDescription

The function will perform A/D conversion N times with interrupt data transfer. It takes place in the background which will not stop until the N -th conversion has been completed or your program execute _9112_AD_INT_Stop() function to stop the process. After executing this function, it is necessary to check the status of the operation by using the function 9112_AD_INT_Status(). The function is performed on single A/D channel with fixed analog input range.

uSyntax

Visual C++(Windows-95)

int W_9112_AD_INT_Start(int card_number, int auto_scan, int ad_ch_no, int ad_range, int count, unsigned long *ad_buffer,

int c1, int c2)

Visual Basic (Windows-95)

W_9112_ AD_INT_Start (ByVal card_number As Long, ByVal auto_scan As Long, ByVal ad_ch_no As Long, ByVal ad_range As Long, ByVal count As Long, ad_buffer As Integer,ByVal c1 As Long, ByVal c2 As Long) As Long

C/C++ (DOS)

int _9112_INT_Start (int card_number, int auto_scan, int ad_ch_no, int ad_range,int count, unsigned long *ad_buffer, int c1, int c2)

uArgument

card_number : the card number of PCI-9112

auto_scan : TRUE or FALSE

Example1 : auto_scan is FALSE, ad_ch_no is 3. Using DMA mode to read A/D data only channel 3.

Example2 : auto_scan is TRUE, ad_ch_no is 3. Using INT mode to read A/D data with multi -channel , channel 3, 2, 1 and 0. Reading sequence is channel 3,2,1,0, 3,2,1,0,3,2,1,0....

ad_ch_no : A/D channel number

ad_range : A/D analog input range, please refer to the section 4.3.8 for the possible values.

count : the number of A/D conversion

ad_buffer : the start address of the memory buffer to store the AD data, the buffer size must large than the number of AD conversion.

In DOS environment, please make sure this memory is double -word alignment. Every 16-bit unsigned integer data in ad_buffer:

C/C++ Library ∙ 59

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Contents Page Trademarks ALL Rights ReservedDetailed Company Information Adlink Technology IncQuestions Page Contents 9112DblBufferTransfer 9112GetOverrunStatus ConversionConversion Digital Input and Output 9112DO 9112DA 9112ADSetChannel 9112ADSetRangePCI Scan Utility Appendix A. Demo. Programs Product Warranty/ServiceWhat do you need VR Assignment Adjustment Software UtilitiesHow to Use This Guide T r o d u c t i o n FeaturesIntroduction ∙ Analog Output D/A SpecificationsApplications Analog Input A/DDigital I/O DIO General SpecificationsProgrammable Counter Programming Library Software SupportingPCIS-LVIEW LabVIEW Driver PCIS-DDE DDE Server and InTouchTM PCIS-VEE HP-VEE DriverDAQBenchTM ActiveX Controls DASYLabTM PRO∙ Installation InstallationWhat You Have Installation ∙ Device Installation for Windows SystemsUnpacking PCI -Bus Controller PCB LayoutPCI-9112 Layout ConverterPCB Layout of the PCI-9112 CPCI-9112 LayoutAnalog Input Channel Configuration Jumper Settings10 ∙ Installation D/A Reference Voltage Setting Clock Source Setting12 ∙ Installation Internal Reference Voltage SettingCN 3 Analog Input / Output & Counter/Timer Connectors Pin AssignmentsPin Assignments of PCI-9112 CN 2 Digital Signal Output do 0 CN 1 Digital Signal Input DI 014 ∙ Installation Pin Assignments of cPCI-9112 16 ∙ Installation Hardware Installation OutlineConnect with ACLD-9182 Daughter Board ConnectionConnect with ACLD-8125 Connect with ACLD-9137Connect with ACLD-9185 18 ∙ InstallationConnect with ACLD-9138 and ACLD-9188 I/O Registers Map G i s t e r s F o r m a tRegisters Format ∙ 20 ∙ Registers Format A/D Data RegistersD/A Output Register Mode A/D control Register22 ∙ Registers Format MUX Register Bit8 ~ Bit5 Auto-Scan Bit24 ∙ Registers Format Software Trigger Register A/D Status Register26 ∙ Registers Format Digital I/O registerHigh Level Programming Internal Timer/Counter RegisterLow Level Programming 28 ∙ Operation Theorem Analog Input Signal ConnectionE r a t i o n T h e o r e m A/D ConversionDifferential input mode Single-ended ModeOperation Theorem ∙ 30 ∙ Operation Theorem 4 Floating source and differential inputSoftware trigger 1 A/D Conversion ProcedureTimer Pacer Trigger 2 A/D Trigger ModesInterrupt Transfer Intx 3 A/D Data Transfer ModesExternal Trigger Software Data Transfer DrdyDMA Transfer Dmax D/A Conversion34 ∙ Operation Theorem Digital Input and OutputCounter Timer/Counter Operation36 ∙ Operation Theorem General Purpose Timer/ CounterPacer Trigger Source AddressControl Byte 38 ∙ Operation Theorem Mode Definitions+ + L i b r a r y Libraries Installation++ Library ∙ 40 ∙ C/C++ Library Programming GuideNaming Convention Data TypesReturn Code 9112InitialSyntax Argument42 ∙ C/C++ Library 9112DI9112DI Channel Description9112DO 44 ∙ C/C++ Library 9112DA9112ADSetChannel 46 ∙ C/C++ Library 9112ADSetRangeCardnumber the card number of PCI-9112 10 9112ADSetMode48 ∙ C/C++ Library 11 9112ADSetAutoscan12 9112ADSoftTrig 50 ∙ C/C++ Library 13 9112ADAquire14 9112ADDMAStart 52 ∙ C/C++ Library 15 9112ADDMAStatus 54 ∙ C/C++ Library 16 9112ADDMAStop17 9112ContDmaStart 56 ∙ C/C++ Library 18 9112CheckHalfReady20 9112GetOverrunStatus 19 9112DblBufferTransfer58 ∙ C/C++ Library 21 9112ContDmaStop22 9112ADINTStart 60 ∙ C/C++ Library 23 9112ADINTStatus24 9112ADINTStop 25 9112ADTimer62 ∙ C/C++ Library 2MHz / c1 * c227 9112TIMERRead 26 9112TIMERStart64 ∙ C/C++ Library 28 9112TIMERStop29 9112AllocDMAMem Argument cardnumber countervalue32 9112GetSample 30 9112FreeDMAMem66 ∙ C/C++ Library What do you need CalibrationCalibration ∙ Unipolar Calibration A/D AdjustmentVR Assignment Bipolar CalibrationReference Voltage Calibration D/A Adjustment2 D/A Channel Calibration Software Utility Software Utilities70 ∙ Software Utility Software Utility ∙ System ConfigurationRunning the Utility CalibrationPCI Scan Utility Functional Testing72 ∙ Software Utility Appendix a Demo Programs ∙ P e n d i x a . D e m o O g r a m sDOS Software Windows 95 DLL74 ∙ Appendix a Demo Programs Product Warranty/Service ∙ Product Warranty/Service