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okay it's working now, I was using USB-RS232 converter which consists of ATtiny2313 and MAX3232, when I connected RXD and TXD directly to ATtiny2313, not using MAX3232, everything started to work properly, thanks for your help!
I've got a problem with USART communication on ATmega16, I'm using USB-RS232 converter (AVR-CDC), with newest drivers and firmware, but simple echo doesn't work :( atmega is clocked by 11.0592MHz crystal, so there should be no errors.
Here's the code:
#define FOSC 11059200