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SScib1's avatar
SScib1
Icon for New Contributor rankNew 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's avatar
SengKok_L_Intel
Icon for Regular Contributor rankRegular Contributor
6 years ago
Hi Serge, As per the user guide, you can access the Root Port configuration Space registers with a Type 0 Configuration TLP in Root Port mode. To further understand the problem, are you able to read/write the End point configuration space? Or able to access the address offset like 14'h3C68 or 14'h3C6C for the read only configuration space. Regards -SK