X-Git-Url: https://git.friedersdorff.com/?a=blobdiff_plain;f=converter%2Fibm4704_usb%2Fconfig.h;h=2fee10fd61fafc681c2feff7158cabab6dd59b8c;hb=9f041460313bc16e3f8a9677faced4d38d343d9a;hp=812d95c670b65063cd60177d8b301971263060f5;hpb=d42aa47809c97a77c49e9396201c2b5c3956bb54;p=max%2Ftmk_keyboard.git

diff --git a/converter/ibm4704_usb/config.h b/converter/ibm4704_usb/config.h
index 812d95c6..2fee10fd 100644
--- a/converter/ibm4704_usb/config.h
+++ b/converter/ibm4704_usb/config.h
@@ -41,9 +41,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
 
-/*
- * Busywait
- */
+/* Pin configuration */
 #define IBM4704_CLOCK_PORT  PORTD
 #define IBM4704_CLOCK_PIN   PIND
 #define IBM4704_CLOCK_DDR   DDRD
@@ -53,19 +51,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define IBM4704_DATA_DDR    DDRD
 #define IBM4704_DATA_BIT    0
 
-/*
- * Pin interrupt
- */
-#define IBM4704_INT_INIT()  do {    \
-    EICRA |= ((1<<ISC11) |      \
-              (0<<ISC10));      \
-} while (0)
-#define IBM4704_INT_ON()  do {      \
-    EIMSK |= (1<<INT1);         \
-} while (0)
-#define IBM4704_INT_OFF() do {      \
-    EIMSK &= ~(1<<INT1);        \
-} while (0)
+/* Pin interrupt on rising edge of clock */
+#define IBM4704_INT_INIT()  do { EICRA |= ((1<<ISC11)|(1<<ISC10)); } while (0)
+#define IBM4704_INT_ON()    do { EIFR |= (1<<INTF1); EIMSK |= (1<<INT1); } while (0)
+#define IBM4704_INT_OFF()   do { EIMSK &= ~(1<<INT1); } while (0)
 #define IBM4704_INT_VECT    INT1_vect