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Altera_Forum
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13 years ago

Can I upload Nios2 SMP system?

Hi, guys & Altera corp. I'm now making a Nios2 SMP system for my research purpose. It's still a little bit buggy and slow, but I succeeded to boot Linux kernel and execute bash. Linux ...
Altera_Forum's avatar
Altera_Forum
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13 years ago

How are you getting around the problem that the nios has no locked bus cycles - so you can't implement any mutex or other atomic operations into normal memory?

Typically these need a minimum of a locked 'compare and exchange' instruction - which the avalon bus doesn't support.

If you've re-implemented nios, you might notice that nios is basically a reimplementation of MIPS :-)