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Altera_Forum's avatar
Altera_Forum
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12 years ago

How to increase number of words in RAM megafunction?

So I am using the dual port RAM mf, I noticed that the maximum number of words for any word size is 65536. Is there any way I can increase this? I want 3 bit words, and a lot of them. Will simu...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

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how many is a lot? THe megafunction is limited to 16 bit addressing. If you have to use the megawizard/mf, then you will have to generate multiple rams (why not have 3x 1x64k ram in parrallel, 1 bit per ram ?)

Have you worked out exactly how many internal memory blocks your 3 bit word will need?

Have you tried inferring the ram in HDL?

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I am basically building a 200X400 grid, so that would mean 80,000 cells with 3 bits each. I could probably try inferring the ram, would that be the best way?