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Altera_Forum's avatar
Altera_Forum
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13 years ago

How to force internal RAM usage in Quartus

I have a DE2-70 dev kit and would like to set up a couple of internal RAM 2D bit arrays. I will NOT be using SOPC/Qsys but would like to access these in Verilog. I have looked up the correct way to b...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Quartus will use internal RAM for an array of that size if not instructed otherwise, but only if your code accesses the data in a way that allows RAM usage. If you read the compilation messages thoroughly, you'll find a warning if no RAM can be inferred.

The conditions for RAM inference are explained in the Quartus software handbook, design templates can be accessed in the context menu of the Quartus editor.