diff options
Diffstat (limited to 'keyboards/helix/serial.c')
| -rw-r--r-- | keyboards/helix/serial.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/keyboards/helix/serial.c b/keyboards/helix/serial.c index 182f22219..591941587 100644 --- a/keyboards/helix/serial.c +++ b/keyboards/helix/serial.c @@ -110,16 +110,18 @@ void serial_master_init(void) { void serial_slave_init(void) { serial_input_with_pullup(); -#ifndef USE_SERIAL_PD2 +#if SERIAL_PIN_MASK == _BV(PD0) // Enable INT0 EIMSK |= _BV(INT0); // Trigger on falling edge of INT0 EICRA &= ~(_BV(ISC00) | _BV(ISC01)); -#else +#elif SERIAL_PIN_MASK == _BV(PD2) // Enable INT2 EIMSK |= _BV(INT2); // Trigger on falling edge of INT2 EICRA &= ~(_BV(ISC20) | _BV(ISC21)); +#else + #error unknown SERIAL_PIN_MASK value #endif } |