diff options
| -rw-r--r-- | converter/sun_usb/config.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/converter/sun_usb/config.h b/converter/sun_usb/config.h index cfd39cd513..66036da931 100644 --- a/converter/sun_usb/config.h +++ b/converter/sun_usb/config.h @@ -56,12 +56,18 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. #define SERIAL_SOFT_RXD_BIT 2 #define SERIAL_SOFT_RXD_VECT INT2_vect /* RXD Interupt */ +#ifdef SERIAL_SOFT_LOGIC_NEGATIVE +/* enable interrupt: INT2(rising edge) */ +#define INTR_TRIG_EDGE ((1<<ISC21)|(1<<ISC20)) +#else +/* enable interrupt: INT2(falling edge) */ +#define INTR_TRIG_EDGE ((1<<ISC21)|(0<<ISC20)) +#endif #define SERIAL_SOFT_RXD_INIT() do { \ /* pin configuration: input with pull-up */ \ SERIAL_SOFT_RXD_DDR &= ~(1<<SERIAL_SOFT_RXD_BIT); \ SERIAL_SOFT_RXD_PORT |= (1<<SERIAL_SOFT_RXD_BIT); \ - /* enable interrupt: INT2(rising edge) */ \ - EICRA |= ((1<<ISC21)|(1<<ISC20)); \ + EICRA |= INTR_TRIG_EDGE; \ EIMSK |= (1<<INT2); \ sei(); \ } while (0) |