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:
Never get Data(0)=1 meaning a TMP answer has been received.
I can provide a test case.
I answered you by email but I do not know if you received it so I answer here as well:
No I am trying to read the Vendor ID of the Root Port as it is made in the simulation file attached, line 170.
That is why ID Bus Device Function = 0, this is to access the Vendor ID of the Root Port.
I can send you a test case if you want.
Can you have a look to the Signal Tap file attached you will see the sequence.
Thanks for help.
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.