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-in Nios application you use printf and getc year as ordinary C programs running on PC.(How to do)

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Sorry, but I didn't understand the sentence.

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- Select Run ... and Target Connection option in select jtag uart have Nios II communication device (I did not find "Target Connection option")

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Go to menu run->run configurations....->Select your NiosII Hardware Configuration->target connection.

Now it depends on your NIOS IDE/EDS Version.

Are you new to NIOSII development? If so I would recommend to do some beginner tutorials. There are a lot on the web which can explain the whole thing much better than I can ever do it.

Regards