diff options
| author | Zach Eveland <zeveland@blacklabel-development.com> | 2011-12-19 15:40:12 -0500 |
|---|---|---|
| committer | Zach Eveland <zeveland@blacklabel-development.com> | 2011-12-19 15:40:12 -0500 |
| commit | 6dc00061df81b4750208996bb7dd0ec76f8f901f (patch) | |
| tree | 8b9bb5359965fac86f8f8500c4f357bb287c7501 /cores/arduino/WInterrupts.c | |
| parent | 58fc0d17cc2d7c5dfb4ce268b7e43d35eebac342 (diff) | |
fixed attachInterrupt() on Leonardo
had to define a separate block for the 32U4 since it looks like a Mega-series board based on a simple register trick. Only two useable HW interrupts though, compared to the Megas' 8, and numbering differs.
Diffstat (limited to 'cores/arduino/WInterrupts.c')
| -rw-r--r--[-rwxr-xr-x] | cores/arduino/WInterrupts.c | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/cores/arduino/WInterrupts.c b/cores/arduino/WInterrupts.c index 1449cfb..2ec72a5 100755..100644 --- a/cores/arduino/WInterrupts.c +++ b/cores/arduino/WInterrupts.c @@ -47,7 +47,19 @@ void attachInterrupt(uint8_t interruptNum, void (*userFunc)(void), int mode) { // Enable the interrupt. switch (interruptNum) { -#if defined(EICRA) && defined(EICRB) && defined(EIMSK) +#if defined(__AVR_ATmega32U4__) + // I hate doing this, but the register assignment differs between the 1280/2560 + // and the 32U4. Since avrlib defines registers PCMSK1 and PCMSK2 that aren't + // even present on the 32U4 this is the only way to distinguish between them. + case 0: + EICRA = (EICRA & ~((1<<ISC00) | (1<<ISC01))) | (mode << ISC00); + EIMSK |= (1<<INT0); + break; + case 1: + EICRA = (EICRA & ~((1<<ISC10) | (1<<ISC11))) | (mode << ISC10); + EIMSK |= (1<<INT1); + break; +#elif defined(EICRA) && defined(EICRB) && defined(EIMSK) case 2: EICRA = (EICRA & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00); EIMSK |= (1 << INT0); @@ -80,7 +92,7 @@ void attachInterrupt(uint8_t interruptNum, void (*userFunc)(void), int mode) { EICRB = (EICRB & ~((1 << ISC70) | (1 << ISC71))) | (mode << ISC70); EIMSK |= (1 << INT7); break; -#else +#else case 0: #if defined(EICRA) && defined(ISC00) && defined(EIMSK) EICRA = (EICRA & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00); @@ -136,7 +148,14 @@ void detachInterrupt(uint8_t interruptNum) { // to the number of the EIMSK bit to clear, as this isn't true on the // ATmega8. There, INT0 is 6 and INT1 is 7.) switch (interruptNum) { -#if defined(EICRA) && defined(EICRB) && defined(EIMSK) +#if defined(__AVR_ATmega32U4__) + case 0: + EIMSK &= ~(1<<INT0); + break; + case 1: + EIMSK &= ~(1<<INT1); + break; +#elif defined(EICRA) && defined(EICRB) && defined(EIMSK) case 2: EIMSK &= ~(1 << INT0); break; @@ -198,7 +217,18 @@ void attachInterruptTwi(void (*userFunc)(void) ) { } */ -#if defined(EICRA) && defined(EICRB) +#if defined(__AVR_ATmega32U4__) +SIGNAL(INT0_vect) { + if(intFunc[EXTERNAL_INT_0]) + intFunc[EXTERNAL_INT_0](); +} + +SIGNAL(INT1_vect) { + if(intFunc[EXTERNAL_INT_1]) + intFunc[EXTERNAL_INT_1](); +} + +#elif defined(EICRA) && defined(EICRB) SIGNAL(INT0_vect) { if(intFunc[EXTERNAL_INT_2]) |