diff options
Diffstat (limited to 'cores/arduino')
| -rw-r--r--[-rwxr-xr-x] | cores/arduino/wiring.c | 11 | ||||
| -rw-r--r-- | cores/arduino/wiring_analog.c | 24 | ||||
| -rw-r--r--[-rwxr-xr-x] | cores/arduino/wiring_digital.c | 22 |
3 files changed, 45 insertions, 12 deletions
diff --git a/cores/arduino/wiring.c b/cores/arduino/wiring.c index e7f7cde..9c264d0 100755..100644 --- a/cores/arduino/wiring.c +++ b/cores/arduino/wiring.c @@ -278,12 +278,21 @@ void init() sbi(TCCR3B, CS30); sbi(TCCR3A, WGM30); // put timer 3 in 8-bit phase correct pwm mode #endif - + +#if defined(TCCR4A) && defined(TCCR4B) && defined(TCCR4D) /* beginning of timer4 block for 32U4 and similar */ + sbi(TCCR4A, COM4A1); // clear channel A on output compare match + sbi(TCCR4C, COM4D1); // clear channel D on output compare match + sbi(TCCR4B, CS42); // set timer4 prescale factor to 64 + sbi(TCCR4B, CS41); + sbi(TCCR4B, CS40); + sbi(TCCR4D, WGM40); // put timer 4 in phase- and frequency-correct PWM mode +#else /* beginning of timer4 block for ATMEGA1280 and ATMEGA2560 */ #if defined(TCCR4B) && defined(CS41) && defined(WGM40) sbi(TCCR4B, CS41); // set timer 4 prescale factor to 64 sbi(TCCR4B, CS40); sbi(TCCR4A, WGM40); // put timer 4 in 8-bit phase correct pwm mode #endif +#endif /* end timer4 block for ATMEGA1280/2560 and similar */ #if defined(TCCR5B) && defined(CS51) && defined(WGM50) sbi(TCCR5B, CS51); // set timer 5 prescale factor to 64 diff --git a/cores/arduino/wiring_analog.c b/cores/arduino/wiring_analog.c index 902b153..db6cb7e 100644 --- a/cores/arduino/wiring_analog.c +++ b/cores/arduino/wiring_analog.c @@ -204,14 +204,18 @@ void analogWrite(uint8_t pin, int val) break; #endif - #if defined(TCCR4A) && defined(COM4A1) + #if defined(TCCR4A) case TIMER4A: - // connect pwm to pin on timer 4, channel A + //connect pwm to pin on timer 4, channel A + #if defined(PWM4A) /* ATMEGA32U4 and related */ + sbi(TCCR4A, PWM4A); + #elif defined(COM4A1) /* ATMEGA1280/2560 and related */ sbi(TCCR4A, COM4A1); - OCR4A = val; // set pwm duty + #endif + OCR4A = val; // set pwm duty break; #endif - + #if defined(TCCR4A) && defined(COM4B1) case TIMER4B: // connect pwm to pin on timer 4, channel B @@ -228,14 +232,17 @@ void analogWrite(uint8_t pin, int val) break; #endif - #if defined(TCCR4A) && defined(COM4D1) - case TIMER4D: + #if defined(TCCR4C) + case TIMER4D: // connect pwm to pin on timer 4, channel D - sbi(TCCR4A, COM4D1); - OCR4D = val; // set pwm duty + #if defined(PWM4D) /* ATMEGA32U4 and related */ + sbi(TCCR4C, PWM4D); + #endif + OCR4D = val; // set pwm duty break; #endif + #if defined(TCCR5A) && defined(COM5A1) case TIMER5A: // connect pwm to pin on timer 5, channel A @@ -270,3 +277,4 @@ void analogWrite(uint8_t pin, int val) } } } + diff --git a/cores/arduino/wiring_digital.c b/cores/arduino/wiring_digital.c index 97ef134..112defc 100755..100644 --- a/cores/arduino/wiring_digital.c +++ b/cores/arduino/wiring_digital.c @@ -105,15 +105,31 @@ static void turnOffPWM(uint8_t timer) case TIMER3C: cbi(TCCR3A, COM3C1); break; #endif - #if defined(TCCR4A) && defined(COM4A1) - case TIMER4A: cbi(TCCR4A, COM4A1); break; - #endif + #if defined(TCCR4A) + case TIMER4A: + #if defined(PWM4A) + cbi(TCCR4A, PWM4A); + #elif defined(COM4A1) + cbi(TCCR4A, COM4A1); + #endif + break; + #endif + #if defined(TCCR4A) && defined(COM4B1) case TIMER4B: cbi(TCCR4A, COM4B1); break; #endif #if defined(TCCR4A) && defined(COM4C1) case TIMER4C: cbi(TCCR4A, COM4C1); break; #endif + + #if defined(TCCR4C) + case TIMER4D: + #if defined(PWM4D) + cbi(TCCR4C, PWM4D); + #endif + break; + #endif + #if defined(TCCR5A) case TIMER5A: cbi(TCCR5A, COM5A1); break; case TIMER5B: cbi(TCCR5A, COM5B1); break; |