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Altera_Forum's avatar
Altera_Forum
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16 years ago

Quartus 9.1 Fitter Error(DDR2 High Performance Controller)

i changed the platform form 8.0 to 9.1 a few dyas before. there is a fitter error i haven't seen. i attempted to solve it in some ways, howerve none of them working.

i didn't see this problem when using quartus 8.0. first i create a sopc file including DDR2 High Performance Controller, generate, write a top file for project, compilation. the analysis and synthesis pass, then the fitter error happen

Error: I/Os have a memory interface specific sub-block, but have no memory interface grouping assignment specified

does anyone met similar problem and help me, thank you!

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    same problem here, I just upgraded from 9.0 to 9.1, and I get this error too, any suggestion anyone?

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    Had a similar problem today with the DDR SDRAM High Performance Controller.

    In my case the sdram settings in the .qsf file were (intentionally) incomplete (because of some problems I met in the past). I re-ran the sdram_pin_assignments.tcl script and adapted the pin names to match those of my design + (specific to my design) changed the OUTPUT_TERMINATION to "SERIES 50 OHM without CALIBRATION". I also noticed a (perhaps 2) new entry(/ies) in the .qsf file : set_instance_assignment -name T11_DELAY 7 -to <pin_name> and set_global_assignment -name MISC_FILE <filename>.dpf (which contains indications about the clock pins of the sdram).

    Since then the fitter passes.

    Regards,

    P9