+#ifdef SERIAL_MOUSE_MICROSOFT
+ /*
+ * Serial(USART) configuration (for Microsoft serial mice)
+ * asynchronous, positive logic, 1200baud, bit order: LSB first
+ * 1-start bit, 7-data bit, no parity, 1-stop bit
+ */
+ #define SERIAL_UART_BAUD 1200
+ #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 */ \
+ UCSR1C = (1<<UCSZ11) | (0<<UCSZ10); /* no parity, 1 stop bit, 7-bit characters */ \
+ sei(); \
+ } while(0)
+#elif defined(SERIAL_MOUSE_MOUSESYSTEMS)
+ /*
+ * Serial(USART) configuration (for Mousesystems serial mice)
+ * asynchronous, positive logic, 1200baud, bit order: LSB first
+ * 1-start bit, 8-data bit, no parity, 1-stop bit
+ */
+ #define SERIAL_UART_BAUD 1200
+ #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 */ \
+ UCSR1C = (1<<UCSZ11) | (1<<UCSZ10); /* no parity, 1 stop bit, 8-bit characters */ \
+ sei(); \
+ } while(0)
+#endif
+