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Altera_Forum
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14 years ago

Nios Eclipse Problem IORD e IOWR

I have an error message from Eclipse when i build my project: "Undefined reference to 'IORD'" "Undefined reference to 'IOWR'" I used many times this functions to build the comunication b...
Altera_Forum's avatar
Altera_Forum
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14 years ago

IORD and IOWR are declared in "io.h"

Usually you don't have to specifically include it, because it's included by other Altera headers. For example, "altera_avalon_performance_counter.h" will include this for you.

If you're using IOWR and IORD directly, then you should include the io.h header in your main function. Let the# ifdef pragmas take care of removing subsequent includes.