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SFava's avatar
SFava
Icon for New Contributor rankNew Contributor
6 years ago

Can the FIR II IP core coefficients be left uninitialized?

Hello everyone,

I am using a MAX 10 SC device.

I instantiated an FIR II IP core with 2 coefficient banks.

The implementation features the interface to let the coefficients being loaded through memory mapped accesses.

When I try to run the Analysis & Synthesis step on Quartus 17.0, the tool raises an error stating:

"Error (16031): Current Internal Configuration mode does not support memory initialization or ROM. Select Internal Configuration mode with ERAM."

I looked on other forums at it seems that the problem relies on the configuration option (Assignments > Device > Device and Pin Options...).

There I should select the configuration mode Single uncompressed image with Memory Initialization.

This mode is not available on MAX 10 SC (Single Supply/Compact) devices, hence I need to instantiate the IP without initializing the coefficient banks.

Is there any way to achieve this?

Best regards,

Samuele Favazza

5 Replies

  • JohnT_Altera's avatar
    JohnT_Altera
    Icon for Regular Contributor rankRegular Contributor
    6 years ago
    Hi, think the FIR II IP core contain memory initialization where you might need to modify the code in order to remove the memory initialization.
    • SFava's avatar
      SFava
      Icon for New Contributor rankNew Contributor
      6 years ago

      Do you refer to the automatically generated sources for the FIR II IP core?

      If yes, could you point me to the code that I should manually change?

      Above all I think the Quartus tool, should warn the user about this potential issue as it is aware of the device being used for the design.

      Regards,

      Samuele Favazza

  • JohnT_Altera's avatar
    JohnT_Altera
    Icon for Regular Contributor rankRegular Contributor
    6 years ago

    Hi,

    Yes, I am referring to the generated file. Could you share with me the generated file?

  • JohnT_Altera's avatar
    JohnT_Altera
    Icon for Regular Contributor rankRegular Contributor
    6 years ago

    HI,

    If you go to "fir_tdm\fir_tdm\synthesis\submodules\" folder then in fir_tdm_fir_compiler_ii_0_rtl_core.vhd it will include 2 hex file which is needed to be initialize by the FIR II IP. I am not sure if you delete the initialization file then will the functionality works or not. I would recommend you to use DC device.