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Observer saberiandy
Observer
2,863 Views
Registered: ‎04-05-2014

why can we configure ps_ddr's ports in the vivado ps7 block design?

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It's very strange when i create a ps7 block design in vivada.

What can we do with these ports in the wrapper file?

Should I set the pins for these ports in the xdc file?

 

inout [14:0]DDR_addr;
inout [2:0]DDR_ba;
inout DDR_cas_n;
inout DDR_ck_n;
inout DDR_ck_p;
inout DDR_cke;
inout DDR_cs_n;
inout [3:0]DDR_dm;
inout [31:0]DDR_dq;
inout [3:0]DDR_dqs_n;
inout [3:0]DDR_dqs_p;
inout DDR_odt;
inout DDR_ras_n;
inout DDR_reset_n;
inout DDR_we_n;

 

Thanks all

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Xilinx Employee
Xilinx Employee
3,738 Views
Registered: ‎08-02-2007

Re: why can we configure ps_ddr's ports in the vivado ps7 block design?

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Hi,

 

When you click on the BD of the processing system and click on generate output products, this will generate a XDC file with the pin mappings of this DDR. I am attaching one xdc that i generated as an example.

 

--Hem

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3 Replies
Xilinx Employee
Xilinx Employee
3,739 Views
Registered: ‎08-02-2007

Re: why can we configure ps_ddr's ports in the vivado ps7 block design?

Jump to solution

Hi,

 

When you click on the BD of the processing system and click on generate output products, this will generate a XDC file with the pin mappings of this DDR. I am attaching one xdc that i generated as an example.

 

--Hem

----------------------------------------------------------------------------------------------
Kindly note- Please mark the Answer as "Accept as solution" if information provided is helpful.

Give Kudos to a post which you think is helpful and reply oriented.
----------------------------------------------------------------------------------------------
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Observer saberiandy
Observer
2,850 Views
Registered: ‎04-05-2014

Re: why can we configure ps_ddr's ports in the vivado ps7 block design?

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thanks for your reply!

I find this xdc file in my project folder now....and customizing ip will change it but it's strange that I can't find the xdc in my vivado(simply don't know how to open it)...

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Xilinx Employee
Xilinx Employee
2,841 Views
Registered: ‎08-02-2007

Re: why can we configure ps_ddr's ports in the vivado ps7 block design?

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Hi,

 

Glad to see that you are able to see the xdc. Can you use file --> open file --> point to xdc that is generated?

 

--Hem

----------------------------------------------------------------------------------------------
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