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Altera_Forum
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8 years ago

Download of Nios II elf in Eclipse to UFM failing

Hi. I have a Nios II project that was previously storing and executing the application in the OCRAM, and now am switching it to store the application in UFM and load it to the OCRAM at start u...
Altera_Forum's avatar
Altera_Forum
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8 years ago

I've not used that method/flow before and I'm assuming that the UFM is at 0xc00000 (can't really see the attached diagram...sorry...). If that is the case there is no way that the IDE will be able to populate (download code to) that UFM. You'd have to program the UFM separately (from a HEX file that gets pulled in during QII compilation or via some sort of "flash programmer").

This limitation of the IDE is not just with UFM, but with any (most?) non-volatile and/or flash memories in general. It's analogous to loading/running code out of EPROM/EEPROM. Debug IDEs typically don't support this or require a different "flash/'prom" programming flow to get the code loaded. To debug the code once it's been loaded, there's usually an option to connect to running process.

Hope that helps!

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