Forum Discussion
HI,
1) I have contacted the Reflexces for Board issues and waiting for their update.
2) At the same time, I have another question about Quartus prime's report for this DDR4 project:
In PLL Usage summary report:
Only five PLLs are listed:
i_pll_sys|iopll_0|altera_iopll_i|twentynm_pll|iopll_inst
eusb31dc_qsys|emif_0|emif_0|arch|arch_inst|pll_inst|pll_inst
eusb31dc_qsys|emif_0|emif_0|arch|arch_inst|pll_inst|pll_inst~_Duplicate
eusb31dc_qsys|emif_0|emif_0|arch|arch_inst|pll_inst|pll_inst~_Duplicate_1
eusb31dc_qsys|emif_0|emif_0|arch|arch_inst|pll_inst|pll_inst~_Duplicate_3
But in Fitter summary report, It reported there are 53 PLLs in the system:
Total RAM Blocks 161 / 2,713 ( 6 % )
Total DSP Blocks 2 / 1,518 ( < 1 % )
Total HSSI RX channels 0 / 48 ( 0 % )
Total HSSI TX channels 0 / 48 ( 0 % )
Total PLLs 53 / 112 ( 47 % )
Why did fitter summary report 53 PLLs in total instead of 5 PLLs?
Moreover, If I remove the DDR4 module from Qsys, Then the fitter summary will report only 1 PLL in total as we expect.
Any idea for the above issue ?
My software version is: Quartus Prime version 18.0 Build 222
09/21/2018 SJ Pro Edition