NiosII printf() not printing correctly

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Might be that the divide operation is failing.

Maybe you code is using the divide instructions, but it isn't present in your cpu.

But %i isn't a standard format.

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I don't have the divider enabled in the CPU. I'll have it enabled and see if it fixes the issue. Thanks ! :)

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Maybe it is a source of incorrect "value" : memory of integer "K" could be overwritten.

"Strings" are located inline or at the end of program section, whereas data are in other section.

It is a clue, i am not expert in multi processor.

Good luck

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Mmmm, that's an interesting thought. but I checked the values from the debugger and they are correct. Only printf() function outputs the messed up values. I also tried sprintf() to get the integer values converted into a string, and the converted string is still incorrect.

Biggest problem is why nothing gets printed when the normal C library is used.

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Are the two processors set to use completely different memory areas for absolutely everything?

Otherwise things will go very strangely wrong.

Similarly I think the stack crashes into the heap - if they collide things will also be 'strange'.

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The two processors use different memory areas for all the code sections. At the moment each processor has 2MB for instructions and 1MB for data sections.