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Altera_Forum
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15 years ago

Cyclone IV M9K packed-mode RAM

Hello, I use the Megafunction of Quartus II to generate a single-port RAM. I implemented that IP at many places in my RTL design. After doing compilation, I expect that the resourse ultilizatio...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

I believe RAM packing occurs in the fitter, i.e. if it needs to the fitter can merge RAM cells into an M9K. If it doesn't need to though, it won't, as this provides more flexibility and better timing. Are you getting a no-fit? If not, you need to add more memories to see if it starts merging them. (Perhaps but a block into a LogicLock region that's small enough to require RAM merging)