Hi everybody, I'm currently using a few atmega328 standalone on breadboards and I'm wondering if it may help to ground unused I/O pins like it's been done with any logic gate to prevent floating input values. Not that I have a specific problem as of now. But since I'm going to port those breadboard prototypes to a PCB, I'd like to know if I should ground those pins in advance.Anyone has a few words to say about that?Cheers :-)
... if your concerned about floating inputs, just enable the internal pull-up resistors for those pin you will not be using ...
Anyone has a few words to say about that?
...just enable the internal pull-up resistors for those pin you will not be using...
Quote from: retrolefty on Oct 14, 2012, 04:55 pm...just enable the internal pull-up resistors for those pin you will not be using...I've read Atmel's datasheet in the meanwhile (why don't I do that before starting a new thread?!!). It clearly suggests enabling those internal pull-ups instead of wiring the free pins to Vcc/GND. I'm glad to see Lefty's suggestions keep proving themselves rock solid :-) I will definetely enable the pull-up resistors and not ground anything at all!
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