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Altera_Forum's avatar
Altera_Forum
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15 years ago

NIOS + MMU uClinux + PIO

Hi I'd like to add same PIO to my nios and control it from linux. In menuconfig I added PIO led and buttons but I get errors while compilling. What should I add in nios.h? And then how controll...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

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This will only work without MMU. And -O2 means optimize, it has nothing to do with what files are included.

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I have only worked on a version without MMU so I didn't knew that this wouldn't work. But good to know for the future.

Ah damn, you are right with the optimize flag 'O2'. I knew it was for optimization but I also thought it was for proper including the right header files. But one of the flags '-o' or '-O2' is sufficient.

But the reason why I couldn't include the asm/io.h was a failure in my own Makefile. The Makefile from the cgi_generic works.