RFSoC 4x2: How to locked clk_in0 to dout8 through LMK04828 and then give to FPGA PL SYS REFCLK?

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1

I need to give a external 80MHz sine wave to clkin0 as a reference clock, and use PLLs in LMK04828 to divide 320MHz clock for FPGA and ADC. I want all the clock (including FPGA and ADC) can keep in synchronization with the external 80MHz sine wave signal.
But when I cut off the external clkin0, the fpga still have reference clock (but have no sysref), so how to locked clk_in0 to dout8 through LMK04828 and then give to FPGA PL SYS REFCLK?

2

Hi,

You need to use TICS PRO software to change the internal clockings of LMK04828 and LMX2594.

Best