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Altera_Forum
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8 years ago

Adding non-addressable memory causes Downloading ELF Process Failed message

I systematically removed components and narrowed my problem to just one: a 64kB 64-bit On-chip ram that is NOT accessed/connected to the Nios II. I developed a subsytem that exclusively uses that me...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

Well, seems I found my problem. I was definitely failing timing. I'm still working out timing in the whole design, but the 64KB of on-chip memory added many cycles worth of slack for some reason; all default tests failed. I reduced to 5KB, and I am now off time by 5ns. The design at least loads, but I need to add a few pipelines in my design.

For anyone else who has this problem, ensure you meet timing!!