VUSB-Firmware for Attiny85 implementing HMAC one time password authentication
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#ifndef _USART_H
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#define _USART_H
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#include <avr/io.h>
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#ifdef DEBUG
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#define MYUBRR 8 /*BAUD=115200*/
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void initUSART();
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void tx( char data );
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void sendstr( char* str);
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void sendunum(uint32_t num);
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void tx_hex(uint8_t c);
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char rx( void );
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#endif //DEBUG
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#endif //_USART_H
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