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FVanE1's avatar
FVanE1
Icon for New Contributor rankNew Contributor
6 years ago

Why is the GTX clock output of the HPS running at 250 MHz?

We have an Arria 10 FPGA with ARM processor. In Platform Designer one of the EMACs is routed to the FPGA logic. We do not route the GMII Tx data and GTX clock directly from FPGA logic to a PHY, but w...
EBERLAZARE_I_Intel's avatar
EBERLAZARE_I_Intel
Icon for Regular Contributor rankRegular Contributor
6 years ago

Hi,

I apologize for the long response time due the current situation, thus I have overlooked this case. The only close fix that I could find regarding your issue, there seems to be an issue in the previous version of Quartus when changing the clock of the EMAC, and there are changes/patch made in the latest 18.1 on-ward, thus we recommend that you try to use the latest version of Quartus preferably 19.1, to see if this fixes your issue.

If further support is required, please post a response in the next few days to allow me to continue to support you. This thread will be transitioned to community support. The community users will be able to help you with your follow-up questions.