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Altera_Forum's avatar
Altera_Forum
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17 years ago

help: One fitter problem

hi, when i configure my board,there is always one mistake tips " Error: Selected device has 52 RAM location(s) of type M4K RAM. however,the current design needs more than 52 to successfully fit." in ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

The RAM blocks can be utilized only according to the available block configuration. Thus there may be a discprepancy between design RAM usage and occupied blocks. Furthermore, with Cyclone II, the block count is doubled for some configurations due to the CYCLONEII_SAFE_WRITE parameter. See Cyclone II erata sheet for details.