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@@ -41,9 +41,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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-/*
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- * Busywait
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- */
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+/* Pin configuration */
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#define IBM4704_CLOCK_PORT PORTD
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#define IBM4704_CLOCK_PIN PIND
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#define IBM4704_CLOCK_DDR DDRD
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@@ -53,19 +51,10 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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#define IBM4704_DATA_DDR DDRD
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#define IBM4704_DATA_BIT 0
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-/*
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- * Pin interrupt
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- */
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-#define IBM4704_INT_INIT() do { \
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- EICRA |= ((1<<ISC11) | \
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- (0<<ISC10)); \
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-} while (0)
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-#define IBM4704_INT_ON() do { \
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- EIMSK |= (1<<INT1); \
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-} while (0)
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-#define IBM4704_INT_OFF() do { \
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- EIMSK &= ~(1<<INT1); \
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-} while (0)
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+/* Pin interrupt on rising edge */
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+#define IBM4704_INT_INIT() do { EICRA |= ((1<<ISC11)|(0<<ISC10)); } while (0)
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+#define IBM4704_INT_ON() do { EIMSK |= (1<<INT1); } while (0)
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+#define IBM4704_INT_OFF() do { EIMSK &= ~(1<<INT1); } while (0)
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#define IBM4704_INT_VECT INT1_vect
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