Справочник Пользователя для National Instruments PCI-DIO-96

Chapter 6

Programming

PCI-DIO-96 User Manual

6-6

 National Instruments Corporation

)

{

unsigned short

pciCommandRegister;

unsigned long

cardBaseAddress,

miteBaseAddress;

//

configure the i/o space of the board such

// that it is memory mapped.

ExpMgrConfigReadWord(deviceNode,

((LogicalAddress) 0x00000004L),

&pciCommandRegister);

ExpMgrConfigWriteWord(deviceNode,

((LogicalAddress) 0x00000004L),

(pciCommandRegister | 0x0002));

//

get the base addresses for the board.

ExpMgrConfigReadLong(deviceNode,

((LogicalAddress) 0x00000010L), 

&miteBaseAddress);

ExpMgrConfigReadLong(deviceNode,

((LogicalAddress) 0x00000014L),

&cardBaseAddress);

//

activate the standard i/o window.

*((unsigned long *) (miteBaseAddress + 

0x000000c0L)) =

EndianSwap32Bit(((cardBaseAddress & 

0xffffff00L) | 0x00000080L));

//

return the base address of the board.

return ((void *) cardBaseAddress);

}

This manual refers to each port as A, B, and C and each PPI (82C55A) 
as A, B, C, and D. NI-DAQ and LabVIEW documentation use numbers 
to identify each port and PPI. For example, this manual uses PPI A 
port A to refer to port A of the 82C55A identified as PPI A. NI-DAQ, 
LabWindows/CVI, LabVIEW, or other application software 
documentation, however, refer to this port as 0. Table 6-1 shows the 
correlation between the different port names.