FPGA Intellectual Property
PCI Express*, Networking and Connectivity, Memory Interfaces, DSP IP, and Video IP
Announcements
Intel Support hours are Monday-Fridays, 8am-5pm PST, except Holidays. Thanks to our community members who provide support during our down time or before we get to your questions. We appreciate you!

Need Forum Guidance? Click here
Search our FPGA Knowledge Articles here.
5881 Discussions

Arria 10 JESD204B Interoperability Reference Design timing issues

mem
Beginner
231 Views

 

IP core Arria 10 JESD204B AD9144-AD9625 Interoperability Reference Design uses the following attribute for register duplication :

altera_attribute of normal : architecture is "-name PHYSICAL_SYNTHESIS_REGISTER_DUPLICATION ON;   ....  "

Quartus 19.1 ignores the register duplication attribute and we cannot get the required timing. All the failing paths have the following node as a starting point :

u_jesd204b_ed_qsys|jesd204b_subsystem_0|rst_controller|alt_rst_sync_uq1|altera_reset_synchronizer_int_chain_out

We tried several ways to convince Quartus to automatically duplicate registers in these paths, but it keeps ignoring all settings for register duplication.

Is there an attribute suitable for Arria 10 for register duplication?

 

 

0 Kudos
5 Replies
Kenny_Tan
Moderator
199 Views

Any reason that you want to duplicate those register? Are this for timing closure? If yes, can you send us a screenshot of the timing violation.


Usually you can see the duplication failure in the fitter/synthesis reports. Can you check on it? it will show the failing reason. But I think this feature only exist in the latest Q20.4, can you upgrade your Quartus to latest version?


Kenny_Tan
Moderator
182 Views

any update?


mem
Beginner
179 Views

At this point we have tested every design provided by Intel for jesd204b for Arria10

and we are a bit confused. We are interested to purchase a license for jesd204b from

Intel.

 

Any support is appreciated,

Thank you.

Kenny_Tan
Moderator
145 Views

You may contact your local sales distributer to purchase any license. You may find it here:

https://www.intel.com/content/www/us/en/partner/where-to-buy/overview.html


Kenny_Tan
Moderator
133 Views

Since this thread had been answered, we shall close this thread. If you still need further assistance, you are welcome to post a response within 15days or open a new thread, some one will be right with you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you with your follow-up questions. 


Reply