Quartus Error: Can't place all RAM cells in design - Seeking Help

Hi,

Check this link https://community.intel.com/t5/Intel-Quartus-Prime-Software/A-question-about-the-block-memory/m-p/142932:

M9Ks only has these configurations

1 bit x 8K addresses

2 x 4k

4 x 2k

8 or 9 x 1k

16 or 18 x 512

32 or 36 x 256

Make sure M9Ks are being used efficiently. Any bits or memory space that cannot be mapped will then be wasted.

For ROM-1 PORT, try to adjust the Set the maximum block depth check this manual link https://faculty-web.msoe.edu/johnsontimoj/EE3921/files3921/ug_ram_rom.pdf (page 13). Probably can help to reduce some of the M9Ks usage. The resource usage box can be checked at the bottom left corner of ROM-1 PORT GUI. The RAM Summary located in Fitter -> Resource Section.

Btw, the DE2-150 design example only consumes 2,664,296 / 6,635,520 ( 40 % ) memory bits and 351 M9Ks.

Thanks,

Best regards,

Sheng