User`s guide

C/C++ Libraries • 49
5.3 _7300_Initial
@ Description
A PCI-7300A card is initialized according to the card number. Because the
cPCI/PCI-7300A is PCI bus architecture and meets the plug and play design,
the IRQ and base address (pass-through address) are assigned by system
BIOS directly. Every cPCI/PCI-7300A card has to be initialized by this function
before calling other functions.
Note: Because configuration of cPCI/PCI-7300A is handled by the system,
there is no jumpers or DMA selection on the PCI boards that need to
be set up by the users.
@ Syntax
Visual C/C++ (Windows 95)
int W_7300_Initial (int card_number, int *pcic_base_addr, int
*lb_base_addr, int *irq_no, int *pci_master)
Visual C/C++ (Windows 95)
W_7300_Initial (ByVal card_number As Long, pcic_base_addr As
Long, lb_base_addr As Long, irq_no As Long,
pci_master As Long) As Long
C/C++ (DOS)
int _7300_Initial (int card_number, int *pcic_base_addr, int
*lb_base_addr, int *irq_no, int *pci_master)
@ Argument
card_number: the card number to be initialized, only four cards
can be initialized, the c ard number must be CARD_1,
CARD_2, CARD_3 or CARD_4.
pcic_base_addr:the I/O port base address of the PCI controller
on card, it is assigned by system BIOS.
lb_base_addr: the I/O port base address of the card, it is
assigned by system BIOS.
irq_no: system will give an available interrupt number to
this card automatically.
pci_master: TRUE: BIOS enabled PCI bus mastering
FALSE: BIOS did not enable PCI bus mastering
@ Return Code
NoError, PCICardNumErr
PCIBiosNotExist PCICardNotExist
PCIBaseAddrErr