+
+/*
+ * Hardware Serial(UART)
+ */
+#ifdef __AVR_ATmega32U4__
+ #define SERIAL_UART_BAUD 19200
+ #define SERIAL_UART_DATA UDR1
+ #define SERIAL_UART_UBRR ((F_CPU/(16UL*SERIAL_UART_BAUD))-1)
+ #define SERIAL_UART_RXD_VECT USART1_RX_vect
+ #define SERIAL_UART_TXD_READY (UCSR1A&(1<<UDRE1))
+ #define SERIAL_UART_INIT() do { \
+ UBRR1L = (uint8_t) SERIAL_UART_UBRR; /* baud rate */ \
+ UBRR1H = (uint8_t) (SERIAL_UART_UBRR>>8); /* baud rate */ \
+ UCSR1B |= (1<<RXCIE1) | (1<<RXEN1); /* RX interrupt, RX: enable */ \
+ UCSR1B |= (0<<TXCIE1) | (1<<TXEN1); /* TX interrupt, TX: enable */ \
+ UCSR1C |= (1<<UPM11) | (1<<UPM10); /* parity: none(00), even(01), odd(11) */ \
+ sei(); \
+ } while(0)
+#else
+ #error "USART configuration is needed."
+#endif
+
+