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cheyert's avatar
cheyert
Icon for New Contributor rankNew Contributor
5 years ago

Cannot merge HSSI Avalon Memory-Mapped interface instances for simplex JESD designs

When instantiating simplex Rx and Tx JESD cores generated by quartus, and enabling the reconfiguration interfaces, the following placement error shows: Error (12829): Failed to merge HSSI Avalon Me...
CheepinC_altera's avatar
CheepinC_altera
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,


As I understand it, you encounter some issues when trying to place two simplex JESD instances into the same XCVR channel. To ensure we are on the same page, just would like to check with you on the following:


1. What is the device that you are using?


2. What is the Quartus version that you are using?


3. Are you using JESD204B or JESD204C IP?


4. Would you mind to share with me a simple test design with only the JESD instances which could replicate the error to facilitate further debugging.


Please let me know if there is any concern. Thank you.


Best regards,

Chee Pin


cheyert's avatar
cheyert
Icon for New Contributor rankNew Contributor
5 years ago

Hi

Hi that is correct.

Please see answers below

1. What is the device that you are using?

Arria 10

2. What is the Quartus version that you are using?

17.1 Pro

3. Are you using JESD204B or JESD204C IP?

JESD204B

4. Would you mind to share with me a simple test design with only the JESD instances which could replicate the error to facilitate further debugging.

Design is integrated in our top level can't share this, but attached a JESD Rx simplex and JESD Tx simplex example designs with their reconfiguration interfaces enabled and which also exhibit this issue. If you try to place JESD Tx and JESD Rx in same bank and transceiver channel, the error shows up.