diff options
| author | Matthijs Kooijman <matthijs@stdin.nl> | 2014-05-16 18:53:17 +0200 |
|---|---|---|
| committer | Matthijs Kooijman <matthijs@stdin.nl> | 2014-05-16 18:57:04 +0200 |
| commit | 3a48c9240d33a32f7afdcb06ac345fa24d4aa46b (patch) | |
| tree | 5bd0dd1d4a47bea93304a6c35564799ec85e0992 | |
| parent | 6d4273609b2f8d8c71ff30bda6e075f3d50e335a (diff) | |
Support TIMER1C
Some devices, such as the atmega2560 or the atmega256rfr2 have a timer1c
output. It seems this output is not connected to anything on the Arduino
Mega, but this allows using it on third party hardware nonetheless.
| -rw-r--r-- | cores/arduino/Arduino.h | 29 | ||||
| -rw-r--r-- | cores/arduino/wiring_analog.c | 8 | ||||
| -rw-r--r-- | cores/arduino/wiring_digital.c | 3 |
3 files changed, 26 insertions, 14 deletions
diff --git a/cores/arduino/Arduino.h b/cores/arduino/Arduino.h index ec1389e..6b923a4 100644 --- a/cores/arduino/Arduino.h +++ b/cores/arduino/Arduino.h @@ -194,20 +194,21 @@ extern const uint8_t PROGMEM digital_pin_to_timer_PGM[]; #define TIMER0B 2 #define TIMER1A 3 #define TIMER1B 4 -#define TIMER2 5 -#define TIMER2A 6 -#define TIMER2B 7 - -#define TIMER3A 8 -#define TIMER3B 9 -#define TIMER3C 10 -#define TIMER4A 11 -#define TIMER4B 12 -#define TIMER4C 13 -#define TIMER4D 14 -#define TIMER5A 15 -#define TIMER5B 16 -#define TIMER5C 17 +#define TIMER1C 5 +#define TIMER2 6 +#define TIMER2A 7 +#define TIMER2B 8 + +#define TIMER3A 9 +#define TIMER3B 10 +#define TIMER3C 11 +#define TIMER4A 12 +#define TIMER4B 13 +#define TIMER4C 14 +#define TIMER4D 15 +#define TIMER5A 16 +#define TIMER5B 17 +#define TIMER5C 18 #ifdef __cplusplus } // extern "C" diff --git a/cores/arduino/wiring_analog.c b/cores/arduino/wiring_analog.c index 8feead9..48a9ef5 100644 --- a/cores/arduino/wiring_analog.c +++ b/cores/arduino/wiring_analog.c @@ -160,6 +160,14 @@ void analogWrite(uint8_t pin, int val) break; #endif + #if defined(TCCR1A) && defined(COM1C1) + case TIMER1C: + // connect pwm to pin on timer 1, channel B + sbi(TCCR1A, COM1C1); + OCR1C = val; // set pwm duty + break; + #endif + #if defined(TCCR2) && defined(COM21) case TIMER2: // connect pwm to pin on timer 2 diff --git a/cores/arduino/wiring_digital.c b/cores/arduino/wiring_digital.c index be323b1..df94cc1 100644 --- a/cores/arduino/wiring_digital.c +++ b/cores/arduino/wiring_digital.c @@ -84,6 +84,9 @@ static void turnOffPWM(uint8_t timer) #if defined(TCCR1A) && defined(COM1B1) case TIMER1B: cbi(TCCR1A, COM1B1); break; #endif + #if defined(TCCR1A) && defined(COM1C1) + case TIMER1C: cbi(TCCR1A, COM1C1); break; + #endif #if defined(TCCR2) && defined(COM21) case TIMER2: cbi(TCCR2, COM21); break; |