Forum Discussion
Hello SK, thanks for guidance, :) May I ask a more question ?
I follow "ug-20016.pdf" to generate a "10GBASE-R Ethernet Design Example" for Arria 10" in Platform Desigher ( Pro 19.2) , and in Target Board field, I select " GX Transceiver Signal Integartion Development KIt ", I can generate example and compile it OK. Then I open the “altera_eth_top.qsf" to check what's its appropriate Pin Assignment ?
I dowload schematics from "Arria 10 GX Transceiver Signal Integrity Installation Package (Production Edition)" from link: https://www.intel.com/content/www/us/en/programmable/products/boards_and_kits/dev-kits/altera/kit-a10-gx-si.html, But I found some discrepancy.
1) in Design Example "altera_eth_top.qsf ", the SFP+ connector pin assigns are below, : PIN_BC7、AW7 , _BD5、_BA7 ,
set_location_assignment PIN_BC7 -to tx_serial_data[0]
set_location_assignment PIN_AW7 -to rx_serial_data[0]
set_location_assignment PIN_BD5 -to tx_serial_data[1]
set_location_assignment PIN_BA7 -to rx_serial_data[1]
2) But from the schematics of " A10 GX Transceiver Signal Integartion Board" and its user guide, the SFP+ PIN is obvious diferrent :
Table 5-15: SFP+ Interface Connector (J29)
Signal Net Name Pin Number Description
GXBR_4C_TX0p BC7 GXB transmit
GXBR_4C_TX0n BC8 GXB transmit
GXBR_4C_RX0p AW7 GXB receive
GXBR_4C_RX0n AW8 GXB receive
SO WHY THE example pin assignment are different to Board Shcematics ? What's the problem hete ? Thanks in advance .
/Best regards
Hi SK,
I upload the example *qsf as well, in case you want to double check it if possbile. Thanks