lambda function not in IRAM

[paul303]

In the example "Esp32RotaryEncoderBasics.ino" the lambda function for calling the ISR is not put into IRAM.

rotaryEncoder.setup([]{rotaryEncoder.readEncoder_ISR();});

Having the complete ISR call in IRAM is something I have painfully learned. My solution is to wrap the call in a plain function like

void IRAM_ATTR readEncoderWrapper_ISR(){ rotaryEncoder.readEncoder_ISR(); }

and set the library up with

rotaryEncoder.setup(readEncoderWrapper_ISR);

This discussion helped me to understand.

I hope this helps.

p.s. thanks for your ai-esp32-rotary-encoder library!

[igorantolic]

Would you improve the code and then I can merge.
Obviously you know how so we can improve.

[ril3y]

@paul303 can you share your implementation?

[stevesch]

I encountered the same-- example still has this flaw. Just do not use the lambda. Use a separate function defined with IRAM_ATTR:

void IRAM_ATTR readEncoderISR()
{
  rotaryEncoder.readEncoder_ISR();
}

void setup()
{
  rotaryEncoder.setup(readEncoderISR);
}

[igorantolic]

All examples are updated to include the same solution. Additionally, button functions changed.