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Altera_Forum
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12 years ago

Nios II with on-chip Dual port ram between Nios and External DSP

Hello, I'd like to implement a dual port ram using on chip memory, with one side connected to the Avalon bus and other connected to an external DSP. Not sure where to get started; I can not se...
Altera_Forum's avatar
Altera_Forum
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12 years ago

Ok - if you need dual clock then you have to live with random data during concurrent read/write of the same address - note the you can get some bits of the old data and some of the new.

M9K don't have a 'read' signal, they do reads every cycle. You can use the clken to stop this - and keep the output data constant even though the address has changed.