Change Pll output frequency intel fpga IP with PLL Reconfig intel fpga IP

[Elias97]

Hello, good afternoon, I am using the PLL intel fpga IP and PLL Reconfig Intel fpga IP components from the Quartus 18.0 Lite library, when reconfiguring the PLL intel with the PLL Reconfig, I perform the series of steps indicated the calculator from the PLLs manual but it doesn't give me the output I want to the intel PLL, how can I know what to calculate to do with the M, N and C counters from the manual, to obtain the output I want. From already thank you very much.

[EthanLi]

Hi there,

Good day~

I am not very clear about your question, do you have difficulty in setting output clock in pll or want to check the calculation of M,C,N and clock frequency?

You can go over the user guide of pll for Max10 device, it shows you the formula using the parameters of PLL.

https://www.intel.com/content/www/us/en/docs/programmable/683047/21-1/pll-architecture.html 

I think you can easily find the output clock settings in pll IP GUI.

Thanks,

Ethan