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Altera_Forum
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20 years ago

Question about multiprocessor code execution

When I use nios2-download to send an elf file to a multiprocessor system, how does it know which processor to use to execute the code? Is it solely based on the addresses in memory that the code is l...
Altera_Forum's avatar
Altera_Forum
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20 years ago

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originally posted by paolo.gai@Dec 23 2005, 04:51 PM

at a first though, i would say "probably not"...

in general, the code that is contained in the elf file for each cpu is the code of the application plus the drivers... you need to have the -same- memory map and peripheral map to do that ... also you may end up in problems if some addresses are hardcoded in the binary image (like all the peripheral addresses contained inside system.h ...

...just a curiosity, what is the behavior you would like to implement?

merry christmas,

paolo

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You&#39;re probably right about the memory/peripheral map being different. I guess I was actually thinking about some other threads asking about how to load multiple programs into flash, and then use a custom bootloader to selectively load them.

In a multiprocessor system, the extension of that would be, is it possible for one processor to load code from flash into SDRAM and cause it to run on another processor?