Quick question (I hope).
Will I brick (or disable uploading sketches) an Arduino Nano if I use direct port access on port D (8 bits, all as outputs)?
I haven't meddled with Arduino for quite a few years, so I'll need to relearn a few things. I just thought I'd throw this question out here first, just in case.
From reading the page about port registers, it has a warning about receiving serial communications being disabled if setting D0 as output.
I don't plan on using the serial comms, except ofc when uploading a program ("sketch"). Hence my little worry. I'm guessing the bootloader will reset this, and that pressing reset will probably be required to do if D0 is not working as serial comms. If so, that'll be fine.
From the schematics of the Nano I see the Rx / Tx pins go through 1k resistors to the USB chip, so I'm aware I have to take that into account.