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-rw-r--r--cores/arduino/Arduino.h30
-rw-r--r--cores/arduino/main.cpp7
-rw-r--r--cores/arduino/wiring_analog.c8
-rw-r--r--cores/arduino/wiring_digital.c3
4 files changed, 34 insertions, 14 deletions
diff --git a/cores/arduino/Arduino.h b/cores/arduino/Arduino.h
index ec1389e..630f0d6 100644
--- a/cores/arduino/Arduino.h
+++ b/cores/arduino/Arduino.h
@@ -118,6 +118,7 @@ typedef uint8_t boolean;
typedef uint8_t byte;
void init(void);
+void initVariant(void);
void pinMode(uint8_t, uint8_t);
void digitalWrite(uint8_t, uint8_t);
@@ -194,20 +195,21 @@ 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/main.cpp b/cores/arduino/main.cpp
index 0ad6962..091c365 100644
--- a/cores/arduino/main.cpp
+++ b/cores/arduino/main.cpp
@@ -19,10 +19,17 @@
#include <Arduino.h>
+// Weak empty variant initialization function.
+// May be redefined by variant files.
+void initVariant() __attribute__((weak));
+void initVariant() { }
+
int main(void)
{
init();
+ initVariant();
+
#if defined(USBCON)
USBDevice.attach();
#endif
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;