Problem with a function on Arduino.

Projects Programming
1

Hello everyone, I wrote a function that serves to set the pins of the DRV8825 respectively m0,m1,m2.
But one thing happens that I don't know how to solve: if I insert the function does not work if I insert the 3 lines of code, extracted from the function, it works. it seems a pun. I attach files.
I can't get there... Will I be a donkey? hi hó hi hó

Thank you. :frowning:
chip

function

void micro1_32(void){
	digitalWrite(M0,HIGH);
	digitalWrite(M1,HIGH);
	digitalWrite(M2,HIGH);
}

test1.ino (599 Bytes)

Microstepping.h (85 Bytes)

Microstepping.cpp (133 Bytes)

That's how it works!.ino (680 Bytes)

2

In test1.ino this line of code

 void micro1_32(void);

is not calling the function, rather it is a function prototype

Note how that line of code differs from the next one

 digitalWrite(Dir,HIGH);

Spot the difference

3

how are M0, M1 and M2 defined (known) in Microstepping.cpp? those constants (#defs) are only defined in test1.ino. I would have expected an error

you can try defining all the constants in Microstepping.h since it's included in both the .ino and .cpp

4

For UKHeliBob, then it is probably not a function but a procedure. If so, why shouldn't it do it?

For gciurpita, I attached the .h and .cpp files so you can see how I defined them.

5

then it is probably not a function but a procedure

In C++, which the Arduino uses, there is no such thing as a procedure. If a function does not accept or return values then it is still a function

Try this

void setup()
{
  Serial.begin(115200);
  void function1();  //tell the compiler that function1 exists
  function2();  //call function2
}

void loop()
{
}

void function1(void)
{
  Serial.println("in function1");
}

void function2(void)
{
  Serial.println("in function2");
}

Now substitute this setup() function and try again

void setup()
{
  Serial.begin(115200);
  function1();  //call function1
  function2();  //call function2
}
6

Thank you! I've tried it and that's how it works. I also managed to produce a .h file and a .cpp file. I didn't remember a few things... :confused:
chip