Using PORT_D for one pin

[mathgcosta]

Hi,

I'm using atmega328P-AU standalone (the same used in arduino nano boards) and I would like to know if its possible declare, for example,

Output<2> my_output;

as

OutputPort<PORT_D, 2> my_output;

Or, declare a output pin passing the AVR PORT name, rather than look up equivalent Arduino pin, as reference:

Thanks!

[mmarchetti]

You can try using an OutputPort; I'd be interested to know whether a 1-bit port ends up generating the same code. Or you could add a new board type with the associated port-pin mapping in ports.h, which would allow you to use the normal Input and Output classes.

[mathgcosta]

Wow,

Great idea. I'll do that. Thanks a lot.

[mathgcosta]

Hey,

I did this implementation but something is going wrong (the led doesn't blinked and there wasn't compilation error)

Here is your original port.h:

And here is what I wrote below:

Can you see some wrong with it?

[mmarchetti]

That looks reasonable, provided it matches your board pinout and you have wired the correct pin.

[mathgcosta]

Yeah,

But doesn't work any output pin on the board, neither blink led nor something else =/ And all wires are correct. The same code using Arduino pins works, that new implementation don't.

[mmarchetti]

Just checking, is ARDUINO_AVR_NANO defined?

[mathgcosta]

You mean, when I compile the code? Like here:

On ports.h file I just removed defined (ARDUINO_AVR_NANO) || \ from here

and added a new #elif defined (ARDUINO_AVR_NANO) statement, as I posted before.

[mmarchetti]

OK, that seems right... just wanted to be sure it was actually defined at compile time so it would use the correct definitions. (you can always verify by putting a #warning statement there). And your code is using pin 32 (Output<32> my_output)?

[mathgcosta]

Hi @mmarchetti. Sorry for delayed answer, I got so stuffs to do last month and so. I'm not using pin32, why? I'll do using #warning and check how it goes.

[mmarchetti]

@mathgcosta, You mentioned a compile error - would you post it here? It would also be good if you can post a code section where you are using the Input or Output class.

[mmarchetti]

Closing this for now, if more details become available we can reopen.