Interrupt inside a class workaround fail

Projects Programming
1

I am aware there are issues trying to put an interrupt routine inside a class and there are workarounds for that. In the following code, I tried to use a workaround but there appears to be something wrong with the way the pointers are defined.

Can someone help me understand what I am doing wrong?

The error:

TimerPointer.cpp:14:5: error: no match for call to '(TeensyTimerTool::PeriodicTimer) (void (*&)(), int)

TimerPointer.ino:

#include "TeensyTimerTool.h"
#include "TimerPointer.h"
using namespace TeensyTimerTool;

TestClass tc;

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
  tc.begin();
}

void loop() {
}

void callback()  // switch off LED
{
  digitalWriteFast(LED_BUILTIN, !digitalRead(LED_BUILTIN));
}

TimerPointer.cpp:

#include "TimerPointer.h"
#include "Arduino.h"
#include "TeensyTimerTool.h"
using namespace TeensyTimerTool;

PeriodicTimer t1(GPT1);

typedef void (*functPtr)();

TestClass::TestClass(){};

void TestClass::begin() {
  functPtr myPtr = myInterrupt;
  t1(myPtr, 500000);
}

void TestClass::myInterrupt() {
  digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));
}

TimerPointer.h:

#ifndef __TIMERPOINTER_H__
#define __TIMERPOINTER_H__

class TestClass {
private:

public:
  TestClass();
  void begin();
  static void myInterrupt();
};

#endif
3

That's not even calling the constructor ... it's nonsense.

4

Bingo! Here is the change and it works.

Thank you!

#include "TimerPointer.h"

#include "Arduino.h"

#include "TeensyTimerTool.h"

using namespace TeensyTimerTool;

PeriodicTimer t1(GPT1);

typedef void (*functPtr)();

TestClass::TestClass(){};

void TestClass::begin() {

functPtr myPtr = myInterrupt;

t1.begin(myPtr,500000);

}

void TestClass::myInterrupt() {

digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));

}