Forum Discussion
Quartus 18.1 transceiver twaddle
- 5 years ago
Hi, Thanks for your update and test results. If I understand it correctly, the PMA AUX is the calibration block. For your information, you would need to connect reconfiguration controller to all the transceiver instances so that the offset cancellation can be performed to ensure correct funtionality of the transceivers. You can share the reconfiguration controller for them to save logic and test if can pass Fitter compilation. Please let me know if there is any concern. Thank you.
Thanks for your feedback.
The problem is really with HSSI_PMA_AUX block. By the way, what is this block? Calibration block?
I simplified my project as much as possible. Left only Ethernet Backplane 10GBASE-KR with reconfiguration controller and 10GBASE-R without reconfiguration controller. And I understand that when they are in the same transceiver bank (in different triplet) - error with AUX block occurs. When they are in different banks everything is ok.
Did I understand correctly that this is happening because I have not connected 10GBASE-R with reconfig controller? it's just that I don't need to connect the second PHY to reconfig controller (only first PHY) and i did not want spend logic on it.
Hi, Thanks for your update and test results. If I understand it correctly, the PMA AUX is the calibration block. For your information, you would need to connect reconfiguration controller to all the transceiver instances so that the offset cancellation can be performed to ensure correct funtionality of the transceivers. You can share the reconfiguration controller for them to save logic and test if can pass Fitter compilation. Please let me know if there is any concern. Thank you.