* asynchronous, negative logic, 1200baud, no flow control
* 1-start bit, 8-data bit, non parity, 1-stop bit
*/
-#define SERIAL_NEGATIVE_LOGIC
#define SERIAL_BAUD 1200
+
#define SERIAL_RXD_DDR DDRD
#define SERIAL_RXD_PORT PORTD
#define SERIAL_RXD_PIN PIND
/* clear interrupt flag */ \
EIFR = (1<<INTF2); \
} while (0)
+#define SERIAL_RXD_READ() (~SERIAL_RXD_PIN&(1<<SERIAL_RXD_BIT))
+
+#define SERIAL_TXD_DDR DDRD
+#define SERIAL_TXD_PORT PORTD
+#define SERIAL_TXD_PIN PIND
+#define SERIAL_TXD_BIT 3
+/* negative logic */
+#define SERIAL_TXD_ON() do { SERIAL_TXD_PORT &= ~(1<<SERIAL_TXD_BIT); } while (0)
+#define SERIAL_TXD_OFF() do { SERIAL_TXD_PORT |= (1<<SERIAL_TXD_BIT); } while (0)
+#define SERIAL_TXD_INIT() do { \
+ /* pin configuration: output */ \
+ SERIAL_TXD_DDR |= (1<<SERIAL_TXD_BIT); \
+ /* idle */ \
+ SERIAL_TXD_ON(); \
+} while (0)
#endif