On Sun, Nov 07, 2021 at 12:05:23PM -0500, Harvey White wrote:
Interleaved responses.
Both arduino NANO and the Nucleo-32 boards have the same pinouts and form
factors, so you can buy a breakout board made for a NANO and plug the Nucleo
board in.? Be careful of the voltages, as ARM processors are 3.3 volts
rather than 5.0 volts.
The Nucleo-32 could be a good solution, but I think I'd take issue with
the NANO. With only 2K of SRAM for stack and variable space it seems a
bit small for doing any significant graphics. Heck, that's not even enough
for a frame buffer. Maybe a sophisticated programmer could do something
with it, but that's still a stretch.
I have a project using a NANO now and I've had to painfully optimize every
byte of storage to get it to fit in. If you go over 90% SRAM utilization,
you're very likely to overwrite the stack during runtime. And of course
the only way it tells you that is by going into either a reset loop or
OTL. Not really good for starting out.
I'd move to the Nucleo, but NANOs are just too darn cheap. I'd be happy
with a similar form factor for the ATMEGA644p. Still a bit small for
this, I think.
Paul
--
Paul Amaranth, GCIH | Manchester MI, USA
Aurora Group of Michigan, LLC | Security, Systems & Software
paul@... | Unix/Linux - We don't do windows
