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Altera_Forum
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13 years ago

onchip memory timing constraints

Hi guys! I am capturing 1Mbit of 64 bit words at 100MHz with onchip memory on my DE2-115 board. All data is produced on the chip. How do I need to add timing constraints? Do I need to set...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

If your design is fully included in fpga (I mean if you only use onchip memory and no external ram or other i/o interfaces with timing requirements) then you only need a few timing constraints.

Did you read the TimeQuest tutorial? You can also refer to the TQ guide by Rysc, which is very clear; you'll find it on the Wiki.

The number of bits/word depends on your implementation. IIRC M9k blocks support up to 36bit width, but you can read more of them in parallel to emulate wider ports.