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Altera_Forum's avatar
Altera_Forum
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12 years ago

SRAM IP that work on some builds, and some it doesn't!

Hello All! I'm having an issue implementing some VERY simple IP for an asynchronous SRAM chip (on digikey: http://www.digikey.com/product-detail/en/is61wv25616bll-10bli/706-1104-nd/1831380)....
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Yes, you're having timing issues. I'm actually amazed that design works at all...

Asynchronous SRAMs have a number of timing relationships that you need to take care of. The timings of the write sequence are particularly tricky.

Simply connecting the async SRAM signals to the Avalon bus won't work.