I am trying to integrate tone() with the open source program for the Amped heart rate monitor. The error:

Tone.cpp.o (symbol from plugin): In function `timer0_pin_port':

(.text+0x0): multiple definition of `__vector_7'

sketch\PulseSensorAmped_Arduino_1dot4.ino.cpp.o (symbol from plugin):(.text+0x0): first defined here

The program comes in three files. PulseSensorAmped_Arduino_1dot4.cpp I don't think references any timers but references a function in another file with this code:

 // Initializes Timer2 to throw an interrupt every 2mS.
 TCCR2A = 0x02; // DISABLE PWM ON DIGITAL PINS 3 AND 11, AND GO INTO CTC MODE
 TCCR2B = 0x06; // DON'T FORCE COMPARE, 256 PRESCALER 
 OCR2A = 0X7C; // SET THE TOP OF THE COUNT TO 124 FOR 500Hz SAMPLE RATE
 TIMSK2 = 0x02; // ENABLE INTERRUPT ON MATCH BETWEEN TIMER2 AND OCR2A
 sei(); // MAKE SURE GLOBAL INTERRUPTS ARE ENABLED

This uses timer 2; but isn't the error for timer 1? The tone() reference page says that tone interferes with pins 3 and 11. Is there any way to fix this?

references:

https://www.arduino.cc/en/Reference/Tone

https://github.com/WorldFamousElectronics/PulseSensor_Amped_Arduino

I am trying to integrate tone() with the open source program for the Amped heart rate monitor. The error:

Tone.cpp.o (symbol from plugin): In function `timer0_pin_port':

(.text+0x0): multiple definition of `__vector_7'

sketch\PulseSensorAmped_Arduino_1dot4.ino.cpp.o (symbol from plugin):(.text+0x0): first defined here

The program comes in three files. PulseSensorAmped_Arduino_1dot4.cpp I don't think references any timers but references a function in another file with this code:

 // Initializes Timer2 to throw an interrupt every 2mS.
 TCCR2A = 0x02; // DISABLE PWM ON DIGITAL PINS 3 AND 11, AND GO INTO CTC MODE
 TCCR2B = 0x06; // DON'T FORCE COMPARE, 256 PRESCALER 
 OCR2A = 0X7C; // SET THE TOP OF THE COUNT TO 124 FOR 500Hz SAMPLE RATE
 TIMSK2 = 0x02; // ENABLE INTERRUPT ON MATCH BETWEEN TIMER2 AND OCR2A
 sei(); // MAKE SURE GLOBAL INTERRUPTS ARE ENABLED

This uses timer 2; but isn't the error for timer 1? The tone() reference page says that tone interferes with pins 3 and 11. Is there any way to fix this?

references:

https://www.arduino.cc/en/Reference/Tone

https://github.com/WorldFamousElectronics/PulseSensor_Amped_Arduino