How works resistor-stuffing option in Cyclone V gt board between SDI Channel and HSM port A, and how change this interfaces?

Hi,

Sorry for the delay. This case was not auto populated into my list after the recent migration. Sorry for the inconvenience.

Thanks for your update. Please see my responses to your latest inquiries:

1. resistor-stuffing option

[CP] For your information, the default resistor placement on the board connect the XCVR ports to HSMC part A. If you would like to connect the XCVR ports to SDI IN/OUT, you would need to remove resistor and replace to new position as mentioned in the Table 2–23. Resistor Switching to Enable the SDI Channel in the reference manual. This would require modification on board. For example, for GXB_TX_L7, you would need to remove R41 and place resistor at R45. You can refer to the board schematic -> sheet #7 for further details.

2. Also, when I tried compile my project in Quartus, Fitter generated error 14566 "The Fitter cannot place periphery component(s)".

[CP] This seems to be related to placement violation in your design. Please help to further elaborate on the specific module which trigger this error.

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

Best regards,

Chee Pin