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zener's avatar
zener
Icon for Occasional Contributor rankOccasional Contributor
2 days ago

Agilex5: How to use a GTS refclk to clock the FPGA fabric?

I tried to use the GTS System PLL configured with FABRIC_USE_CASE and ref clock frequency to 156.25MHz, C1 enable and selected 101.768092 MHz from the C1 output frequency menu but this results in the...
Transceiver
zener's avatar
zener
Icon for Occasional Contributor rankOccasional Contributor
11 hours ago

I left the C0 port unconnected in my last test and only connected C1 as the documentation states: "Only available when Use case of system PLL is set to FABRIC_USE_CASE. When On, there is an output port C1 for FPGA core fabric use.". However, earlier I tried to use the C0 for the fabric (i.e. just clock a simple counter), but it resulted in the same error.