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Altera_Forum's avatar
Altera_Forum
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9 years ago

FFT MegaCore RAM allocation

Hi, I was trying to implement a 512-point 16-bit FFT megacore in the Cyclone II family device. The device has 36 M4K RAM blocks available. The 512-point 16-bit FFT needs 22 M4K blocks. I have a...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

Hi,

The Quartus software will auto allocate the RAM location for FFT IP. It is not possible to use the external memory for FFT IP and user has no control on it.

Once the RAM location is used by FFT IP, it is unable to allocate for other function. If the internal memory location is not sufficient, the Quartus software will fail compilation with relevant error message.

Best Regards,

Terence

(This message was posted on behalf of Intel Corporation)