ContributorHi,
I am looking for Cyclone 10GX FPLL data about the values for loop filter resistance, charge pump current...
My main application is using Nios II to dynamically change the values but I am not able to find any information related to this usage.
For example, AN-728 provides data about the loop filter, charge pump..
Similar constraint should exist for FPLL..
Please help!
Thank you!
BRs,
Johnson
Frequent ContributorYou can find fpll register map in: https://www.altera.com/content/dam/altera-www/global/en_US/others/literature/hb/cyclone-10/c10-registermap-official.xlsx
References: fpll is mostly for transceiver usage. For core usage, there is a how-to video that you can refer.
ContributorHi JonWay,
Thank you for the shared data.
What I am trying to know is how to find proper fPLL settings for,
" loop filter resistance, charge pump current..".
I am not able to fine the guidelines like "AN-728".
As my design needs to manually adjust the M values dynamically.
BRs,
Johnson
Frequent ContributorHi,
The excel sheet has the info of the loop filter resistance and charge pump as well.
Just like IOPLL, these values are auto calculated.
I would suggest that you follow the Youtube how-to to generate the mif, and then compare what are the changes in the loop filter/charge pump.
