4 Sep
2012
4 Sep
'12
9:19 p.m.
On 09/05/2012 12:10 AM, David Riley wrote:
"Slow" is not a word I'd use to describe a Cortex-M3 core at 80MHz.
Remember "bare metal" here...no lumbering pig kernels like Linux or
even NetBSD involved.
Right. And at 92K of RAM and 256K program memory, many PDP-11
operating systems would fit reasonably well and run a hell of a lot
faster (assuming the feasibility of a port, which is next to nil).
Hmm. How much of a POSIX layer is required by simh? ;)
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
It's
ironic that it seems increasingly hard to do anything
"bare metal" without a graphical UI IDE on a desktop and a USB
stack on the "bare metal".
That is true if you start out with a SOC that never was intended
for embedded systems use, like this part was. All of the I/O is
just... wrong.
If you want to be doing bare metal development, you should be
using something like this http://www.ebay.com/itm/150839172147
It's small, it's 'slow' but the I/O on it is actually USEFUL for
building stuff.