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Altera_Forum's avatar
Altera_Forum
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21 years ago

GCC Compiler Switch

Hi, I want to force the Nios II GCC compiler to use a 32-bits memory location for any variable (alt_u32, alt_u16, alt_u8, etc). Is there a GCC compiler switch to do this trick? Best Reg...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

Hi niosIIuser,

Unfortunately this trick does not work. The reason why I'm asking is the fact that I have a memory perpipheral that only supports 32 and 16 bits (word aligned) access. The Nios II runs code and data from this peripheral without any troubles, but if I uncheck the system library option 'Small C Library' or 'Reduce Device Drivers' the printf output is corrupted or nothing. So I thought that aligning the variables to a word boundary maybe could solve the problem.

Any other ideas?

Best Regards,

Marco