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Stratix V Hard IP for PCI Express (Root-point)

Altera_Forum
Honored Contributor II
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Dear Sir, 

 

 

I am developing a product that uses the Altera FPGA (Stratix-V). 

I am designing FPGA logic using Hard IP for PCI Express. 

I assign the two PCI Express port in FPGA. 

One port is assigned Native Endpoint, and other one port is assigned Root-point. 

I have experience with the Endpoint, but I don't have experience with the Root-point. 

So, I have some question. 

 

 

1.On page 8-48 of "Stratix V Hard IP for PCI Express User Guide(May 2013)" have the following description. 

 

 

"In Root Port mode, do not access the Configuration Space using TLPs and the LMI bus simultaneously." 

 

 

Can I do? Configuration how without using the LMI? 

 

 

2.Please tell me an example of setting the configuration space at the root-point. 

 

 

3.When I use the Root-point on Hard IP, do I need any special settings compared to Native Endpoint? 

 

 

Could you advice to me from these situations? 

 

 

Best Regards, 

kahaluu
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