'Pin' was not declared in this scope error message

Projects Programming
1

I've been working on an arduino project for school where we need to make a LED light up and such with an interrupt.
I wanted to test the code, but keep getting an error message. I've tried looking here in the forums for a solution, but there's nothing that's exactly like my problem.

const int ledPin = PA5; // On-board LED
const int buttonPin = PC13;
int blinkZeit = 1000;
int interruptCount = 0;

void buttonISR(){
  blinkZeit /= 2;
  interruptCount++;
  Serial.print("Interrupt Count: ");
  Serial.println(interruptCount);
  Serial.print("BlinkZeit: ");
  Serial.print(blinkZeit);
  Serial.println(" ms.");
}

void setup() {
    pinMode(buttonPin, INPUT_PULLDOWN);
    pinMode(ledPin, OUTPUT);
    attachInterrupt(digitalPinToInterrupt(buttonPin), buttonISR, RISING);
}

void loop() {
  digitalWrite(ledPin, HIGH);
  delay(blinkZeit/2);
  digitalWrite(ledPin, LOW);
  delay(blinkZeit/2);
}

Here's the error message I've been getting:

error: 'PA5' was not declared in this scope
const int ledPin = PA5; // On-board LED
note: suggested alternative: 'A5'
const int ledPin = PA5; // On-board LED
^~~
A5

I don't really understand why it's trying to get me to replace these pins when firstly, these have worked fine in previous projects and secondly, they are the pins I need to use for this project so I can't just change them.

error: 'PC13' was not declared in this scope
const int buttonPin = PC13;
^~~~
note: suggested alternative: 'PC1'
const int buttonPin = PC13;
^~~~
PC1

It also doesn't recognize the PULLDOWN for some reason. Like it doesn't highlight it in the programm either, but when i put PULLUP it does, which to me doesn't make sense.

error: 'INPUT_PULLDOWN' was not declared in this scope
pinMode(buttonPin, INPUT_PULLDOWN);
^~~~~~~~~~~~~~
note: suggested alternative: 'INPUT_PULLUP'
pinMode(buttonPin, INPUT_PULLDOWN);
^~~~~~~~~~~~~~
INPUT_PULLUP
exit status 1
'PA5' was not declared in this scope

If anyone could help out, that'd be great.

2

Welcome to the forum

Which Arduino board are you compiling for ?

3

I figured out I just didn't have arduino setup completely :sob:
It works now lol