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PCI Express computer side program

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spman

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Hi,
I have a design with PCIe and DDR3 RAM on ML605 board. I've implemented the RAM successfully and I'm currently trying to implement PCIe.
I'm confused with the computer side program! How should I send data from computer to FPGA? In the Xilinx example design, a program (PCItree) is used only for testing throughput. But I don't know how to send my data and how to direct them to the RAM. Is it possible to make DMA between the PCIe core and the RAM?

Thanks in advance.

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Another question in regard to this topic:
What does mean each of the terms "Endpoint application" and "Root port application" ? I encountered to these in the Virtex-6 PCIe user guide.
 

hi,

From the "computer side", PCIe is like PCI. So if yo want to communicate with your device, you need a device driver (if you use linux, you can access your device from the user's land using mmap).
A root complex is the PCIe "master". The root complex talks to endpoints.

Franck.
 
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    spman

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Thanks Franck
elec4fun said:
A root complex is the PCIe "master". The root complex talks to endpoints.
Click to expand...
What are endpoints in the literature?

Do you know about communication with PCI in windows?
 

Endpoints are devices.

I've done some communication with a PCI device under windows. I wrote a WDF driver.
I know you can also use some commercial API like Jungo Windriver to handle PCI communication.

Franck.
 
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