HP 9112 manual Control Byte

Page 45

Control Byte

Before loading or reading any of these individual counters, the control byte (BASE+3) must be loaded first. The format of the control byte is :

i t

∙SC1 & SC0 - Select Counter (Bit7 & Bit 6)

S	S	COUNTER
C	C
1	0


0	0	Select Counter 0
0	1	Select Counter 1
1	0	Select Counter 2
1	1	ILLEGAL

∙RL1 & RL0 - Select Read/Load operation (Bit 5 & Bit 4)

R	R	OPERATION
L	L
1	0


0	0	COUNTER LATCH FOR STABLE READ

01 READ/LOAD LSB ONLY

10 READ/LOAD MSB ONLY

11 READ/LOAD LSB FIRST, THEN MSB

∙M2, M1 & M0 - Select Operating Mode (Bit 3, Bit 2, & Bit 1)

M2	M1	M0	MODE

0	0	0	0
0	0	1	1
x	1	0	2
x	1	1	3
1	0	0	4
1	0	1	5

Operation Theorem ∙ 37

Image 45

Contents Page Trademarks ALL Rights ReservedAdlink Technology Inc Detailed Company InformationQuestions Page Contents Conversion Digital Input and Output Conversion9112DO 9112DA 9112ADSetChannel 9112ADSetRange 9112DblBufferTransfer 9112GetOverrunStatusWhat do you need VR Assignment Adjustment Appendix A. Demo. Programs Product Warranty/ServiceSoftware Utilities PCI Scan UtilityHow to Use This Guide Features T r o d u c t i o nIntroduction ∙ Applications SpecificationsAnalog Input A/D Analog Output D/AGeneral Specifications Digital I/O DIOProgrammable Counter Software Supporting Programming LibraryPCIS-LVIEW LabVIEW Driver DAQBenchTM ActiveX Controls PCIS-VEE HP-VEE DriverDASYLabTM PRO PCIS-DDE DDE Server and InTouchTMInstallation ∙ InstallationWhat You Have Device Installation for Windows Systems Installation ∙Unpacking PCI-9112 Layout PCB LayoutConverter PCI -Bus ControllerPCB Layout of the PCI-9112 CPCI-9112 LayoutJumper Settings Analog Input Channel Configuration10 ∙ Installation D/A Reference Voltage Setting Clock Source Setting12 ∙ Installation Internal Reference Voltage SettingConnectors Pin Assignments CN 3 Analog Input / Output & Counter/TimerPin Assignments of PCI-9112 CN 1 Digital Signal Input DI 0 CN 2 Digital Signal Output do 014 ∙ Installation Pin Assignments of cPCI-9112 16 ∙ Installation Hardware Installation OutlineConnect with ACLD-8125 Daughter Board ConnectionConnect with ACLD-9137 Connect with ACLD-918218 ∙ Installation Connect with ACLD-9185Connect with ACLD-9138 and ACLD-9188 G i s t e r s F o r m a t I/O Registers MapRegisters Format ∙ 20 ∙ Registers Format A/D Data RegistersD/A Output Register A/D control Register Mode22 ∙ Registers Format MUX Register Bit8 ~ Bit5 Auto-Scan Bit24 ∙ Registers Format Software Trigger Register A/D Status Register26 ∙ Registers Format Digital I/O registerInternal Timer/Counter Register High Level ProgrammingLow Level Programming E r a t i o n T h e o r e m Analog Input Signal ConnectionA/D Conversion 28 ∙ Operation TheoremSingle-ended Mode Differential input modeOperation Theorem ∙ 30 ∙ Operation Theorem 4 Floating source and differential inputTimer Pacer Trigger 1 A/D Conversion Procedure2 A/D Trigger Modes Software triggerExternal Trigger 3 A/D Data Transfer ModesSoftware Data Transfer Drdy Interrupt Transfer IntxDMA Transfer Dmax D/A Conversion34 ∙ Operation Theorem Digital Input and OutputCounter Timer/Counter OperationPacer Trigger Source General Purpose Timer/ CounterAddress 36 ∙ Operation TheoremControl Byte 38 ∙ Operation Theorem Mode DefinitionsLibraries Installation + + L i b r a r y++ Library ∙ Naming Convention Programming GuideData Types 40 ∙ C/C++ LibrarySyntax 9112InitialArgument Return Code9112DI Channel 9112DIDescription 42 ∙ C/C++ Library9112DO 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 9112TIMERStart29 9112AllocDMAMem 28 9112TIMERStopArgument cardnumber countervalue 64 ∙ C/C++ Library32 9112GetSample 30 9112FreeDMAMem66 ∙ C/C++ Library Calibration What do you needCalibration ∙ VR Assignment A/D AdjustmentBipolar Calibration Unipolar CalibrationD/A Adjustment Reference Voltage Calibration2 D/A Channel Calibration Software Utilities Software Utility70 ∙ Software Utility Running the Utility System ConfigurationCalibration Software Utility ∙Functional Testing PCI Scan Utility72 ∙ Software Utility DOS Software P e n d i x a . D e m o O g r a m sWindows 95 DLL Appendix a Demo Programs ∙74 ∙ Appendix a Demo Programs Product Warranty/Service ∙ Product Warranty/Service