How to convert PA6 to PA_6 in when using STM32?

Projects Programming
1

I have a function that needs a pin argument, for example:

void blink(int pin) {
  digitalWrite(pin, HIGH);
  digitalWrite(pin, LOW);
}

blink(PA6);

I'm using STM32 and it has 2 ways to use pins, normal way (e.g. PA6) and "fast" way (e.g. PA_6 and then use digitalWriteFast(PA_6,...)). I want to use "fast" pin functions inside my function, but I still want to use normal pins as an argument of my function. How can I convert normal pins to "fast pins"?

void blink(int pin) {
  SomeType p = SomeFunction(pin);
  digitalWriteFast(p, HIGH);
  digitalWriteFast(p, LOW);
}

What is the SomeType and what is the SomeFunction? I wasn't able to find it.

2

Sorry, I just found it:

PinName p = digitalPinToPinName(pin);
3 
#define PA6 PA_6
4

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