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altera_mem_if_ddr3_emif
Hi
altera_mem_if_ddr3_emif used to have a parameter box 'enable afi half rate clock' in Quartus 18
Somewhere between V18 and V23 it has disappeared and I cant get afi_half_clk to work any more.
How do I enable afi_half_clk in V23?
4 Replies
- NGord
Occasional Contributor
If opening Platform designer with no Project selected , I see the 'half-rate' tick box in DDR3 SDRAM Controller with UniPHY Intel FPGA IP, regardless of Quartus version.
If the project is for a MAX10, the tick box disappears and I have no afi_half_clk.
I can find no explanation for this. - NGord
Occasional Contributor
Is the issue that the MAX10 PLL doesnt have enough PLL outputs?
- AdzimZM_Altera
Regular Contributor
Hi NGord,
For Max 10 FPGA device, the DDR3 EMIF IP doesn't support afi half rate clk.
I think the Cyclone V device is used by default if no project is opened.
Therefore, the DDR3 EMIF IP is targeting to Cyclone V and you may see the afi half rate clock option.
Regards,
Adzim
- AdzimZM_Altera
Regular Contributor