ADLINK Technology NuDAQ PCI-9812/10 User Manual

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ADLINK Technology NuDAQ PCI-9812/10 User Manual Manual pdf 47 page image

C/C++ Library • 395.2 Programming Guide5.2.1 Naming ConventionThe functions of the NuDAQ PCI cards or NuIPC CompactPCIcards’ software driver are using full-names to represent thefunctions' real meaning. The naming convention rules are:In DOS Environment :_{hardware_model}_{action_nam e}. e.g. _9812_Initial().All functions in PCI-9812 driver are with 9812 as{hardware_model}. But they can be used by PCI-9812, PCI-9810.In order to recognize the difference between DOS library andWindows 95 library, a capital "W" is put on the head of each functionname of the Windows 95 DLL driver. e.g. W_9812_Initial().5.2.2 Data TypesWe defined some data type in Pci_9812.h (DOS) and Acl_pci.h(Windows 95). These data types are used by NuDAQ Cards’ library.We suggest you to use these data types in your applicationprograms. The following table shows the data type names and theirrange.Type Name Description RangeU8 8-bit ASCII character 0 to 255I16 16-bit signed integer -32768 to 32767U16 16-bit unsigned integer 0 to 65535I32 32-bit signed integer -2147483648 to 2147483647U32 32-bit single-precisionfloating-point0 to 4294967295F32 32-bit single-precisionfloating-point-3.402823E38 to 3.402823E38F64 64-bit double-precisionfloating-point-1.797683134862315E308 to1.797683134862315E309Boolean Boolean logic value TRUE, FALSE