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Honored Contributor
Honored ContributorUSB & EMAC I/O options
Is it possible to route the HPS USB I/O signals through the FPGA instead of using the dedicated HPS pins? In 13.1 you can only select HPS I/O pin multiplexing for the USB controllers. I'm guessing ...
Altera_ForumHonored Contributor
Honored Contributor --- Quote Start --- Also, I need to access the PTP clock signals for one of the EMAC interfaces, and these are only available when FPGA pin multiplexing is selected. I am using the HPS set. Is there a way of exposing just the relevant signals to the FPGA while keeping the MII interface on the HPS pins? --- Quote End --- I think, there is RGMII interface when you use dedicated HPS pins and I'm afraid we are'nt abe to access to the P2P clock when we use dedicated IOs. If you need P2P interface you have to use GMII full set through FPGA and FPGA IOs. One more idea, cannot you use GMII interface through FPGA logic and transceiver to reduce interface to RGMII (SGMII,...)?
