X-Git-Url: https://git.friedersdorff.com/?a=blobdiff_plain;f=keyboard%2Fhhkb_rn42%2Fconfig.h;h=5e6d7a64361fb5999a287004c40226d555d46a3f;hb=fa545c87f74833856761572ef631d20accc1d026;hp=a8f76ae6b07066802787833718ef1e217e273693;hpb=4069776c022502f117b83b66c5a71700135acfbc;p=max%2Ftmk_keyboard.git

diff --git a/keyboard/hhkb_rn42/config.h b/keyboard/hhkb_rn42/config.h
index a8f76ae6..5e6d7a64 100644
--- a/keyboard/hhkb_rn42/config.h
+++ b/keyboard/hhkb_rn42/config.h
@@ -47,6 +47,42 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define BOOTMAGIC_KEY_SALT      KC_FN6
 
 
+/*
+ * Hardware Serial(UART)
+ *     Baud rate are calculated with round off(+0.5).
+ */
+#ifdef __AVR_ATmega32U4__
+    /* iom32u4.h has no definition of UCSR1D. copy from iom32u2.h */
+    #define UCSR1D _SFR_MEM8(0xCB)
+    #define RTSEN 0
+    #define CTSEN 1
+
+    #define SERIAL_UART_BAUD       115200
+    #define SERIAL_UART_DATA       UDR1
+    #define SERIAL_UART_UBRR       ((F_CPU/(16.0*SERIAL_UART_BAUD)-1+0.5))
+    #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 = ((uint16_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 |= (0<<UPM11) | (0<<UPM10);  /* parity: none(00), even(01), odd(11) */ \
+        UCSR1D |= (0<<RTSEN) | (0<<CTSEN);  /* RTS, CTS */ \
+        sei(); \
+    } while(0)
+#else
+    #error "USART configuration is needed."
+#endif
+
+
+/* for debug */
+#define SUART_OUT_PORT  PORTD
+#define SUART_OUT_BIT   0
+#define SUART_IN_PIN    PIND
+#define SUART_IN_BIT    1
+
+
 /*
  * Feature disable options
  *  These options are also useful to firmware size reduction.