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New Contributor

6 years ago

Cannot read Vendor ID of ARRIA 10 PCIe Root Port AVMM IP on CRA bus

The PCIe RP Ip is in LO state, Sync is ok. My first acces is to read the Vendor ID of the PCie RP IP. When I sent the following sequence on the CRA bus I never get an answer: Add=2000h Data=0400_...

SengKok_L_Intel

Regular Contributor

6 years ago

The address 0x2000 - 0x2FFF are the Root Port request registers. It is used to send the data for configuration TLPs to the end points. Please refer to following user guide, section 6.8.3 for the examples of reading and writing BAR0 using the CRA interface.

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug_a10_pcie_avmm.pdf

Regards -SK

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Cannot read Vendor ID of ARRIA 10 PCIe Root Port AVMM IP on CRA bus

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