Advantech PCI-1784 specifications Programming with Device Drivers Function Library

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For information about using other function groups or other development tools, please refer to the Creating Windows 95/NT/2000 Application with Device Drivers chapter and the Function Overview chapter on the Device Drivers Manual.

Programming with Device Drivers Function Library

Advantech Device Drivers offers a rich function library to be utilized in various application programs. This function library consists of numerous APIs that support many development tools, such as Visual C++, Visual Basic, Delphi and C++ Builder.

According to their specific functions or services, those APIs can be categorized into several function groups:

❏Digital Input/Output Function Group

❏Counter Function Group

❏Port Function Group (direct I/O)

❏Event Function Group

For the usage and parameters of each function, please refer to the Function Overview chapter in the Device Drivers Manual.

Troubleshooting Device Drivers Error

Driver functions will return a status code when they are called to perform a certain task for the application. When a function returns a code that is not zero, it means the function has failed to perform its designated function. To troubleshoot the Device Drivers error, you can pass the error code to DRV_GetErrorMessage function to return the error message. Or you can refer to the Device Drivers Error Codes Appendix in the Device Drivers Manaul for a detailed listing of the Error Code, Error ID and the Error Message.

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Contents Page Page Contents Appendix D. Operation Features IntroductionEncoder Interface Counters Digital Input and InterruptsFlexible Digital Output function Special Shielded Cable for Noise ReductionBoard ID Installation Guide ApplicationsInstallation Flow Chart Software Overview Device DriversRegister-level Programming Device Drivers Programming Roadmap Programming ToolsTroubleshooting Device Drivers Error Programming with Device Drivers Function LibraryAccessories Wiring CableWiring Boards Installation UnpackingPage Driver Installation Setup Screen of Advantech Automation SoftwareHardware Installation Select the Individual Drivers optionPage Device name listed on the Device Manager Device Setup & Configuration Board selectionSetting Up and configure the device ‘Setup’ dialog boxOperation dialog box Signal Connections Switch and Jumper SettingsOverview Names of Jumpers Function descriptionBoard ID setting SW1 Signal Connections Connector Signal DescriptionPin Assignment Quadrature encoder input Single ended Outputs EncoderQuadrature encoder up/down counter input connections Isolated digital input Isolated digital outputAppendix A. Specifications TimerEncoder Output Interrupt Counter LatchGeneral Appendix B. Block Diagram ADDRESS, Control and Data BUSPage Appendix C. Register Structure and Format I/O Port Address MapTable C-1 PCI-1784 register format Part + HEX1CH Clock Control Counter 0/1/2/3 mode BASE+00/04/08/0CH Table C-2 PCI-1784 Register for counter 0/1/2/3 modeDI0 Counter 0/1/2/3 latch data BASE+00/04/08/0CH Table C-3 PCI-1784 Register for counter 0/1/2/3 latch dataCounter 0/1/2/3 compare data BASE+10/14/18/1CH Table C-4 PCI-1784 Register for counter 0/1/2/3 compare dataInterrupt control register BASE+20H Table C-5 PCI-1784 Register for interrupt controlInterrupt status register BASE+20H Table C-6 PCI-1784 Register for interrupt statusClear Interrupt BASE+24H Table C-7 PCI-1784 Register for clock controlTable C-8 PCI-1784 Register for clear interrupt Software latch BASE+28H Table C-9 PCI-1784 Register for software latchBoard ID BASE+28H Table C-10 PCI-1784 Board ID dataReset counter BASE+2CH Table C-11 PCI-1784 Register for reset counterDigital output BASE+30H Table C-12 PCI-1784 Register for digital outputDigital input/output BASE+30H Table C-13 PCI-1784 Register for digital input/outputPage Appendix D. Operation Quadrature encoder introductionMode Maximum input rate 8MHz 4MHz 2MHz 1MHz Quadrature input counter modeCounter modes Single-ended vs. differential inputPulse mode Pulse/direction modeDisabled mode Digital noise filterLatch mode Clock frequency Maximum widthLatch Index latchCounter reset value Timer functionInterrupt function