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Serge93's avatar
Serge93
Icon for Occasional Contributor rankOccasional Contributor
22 days ago

F-Tile PCIe Root Port 1x Gen3x4 - Configuration Read Type 0 receives no answer

Hello Support, I am using the Agilex 7F Dev Kit with F-Tile configured in Root Port Gen3x4. When I am doing a Configuration Write Type 0 to write the End Point BAR0 with FFFF_FFFFh, the end point se...
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RongY_altera's avatar
RongY_altera
Icon for Contributor rankContributor
18 days ago

Hi Serge,

 

When I am doing a Configuration Write Type 0 to write the End Point BAR0 with FFFF_FFFFh

>>This doesn't look right. For a BAR test, I think you should use MWr and MRd.

 

Regards,

Rong

 

Serge93's avatar
Serge93
Icon for Occasional Contributor rankOccasional Contributor
17 days ago

Hello Rong,

Nice to see you again.

BAR0 in address 10h, is in the Configuration Space not in the Memory Space, so you have to use a Configuration Access. I am using the same access with my Agilex7i-R-Tile board and it is working. So this is very strange it is not working on the Agilex-7F board.

Thanks for help.
Serge