| Doc ID: | 77 |
| Product: | WinDriver |
| Version: | -- |
How do I perform Direct Block transfers from one PCI card to another? |
Locate and register both cards (using WD_PciScanCards(), WD_PciGetCardInfo() and WD_CardRegister()). At least one of the cards must be PCI DMA Master Capable. Program it with the physical address of the Slave card. Obtaining this address is possible by using pciCard.Card.Item[i].I.Mem.dwPhysicalAddr set by WD_PciGetCardInfo() for the slave card. [Please refer to the WinDriver User's Manual for more information regarding DMA handling and the related APIs. Note that in newer versions of WinDriver WD_DMALock() is described in the WinDriver PCI Low Level API Reference, which is available from the WinDriver/docs/ directory]. A sample of programming the DMA can be found, for example, in the WinDriver PLX library and the samples that use it. Back to Top |
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