12 Sep
2007
12 Sep
'07
4:56 p.m.
On Wednesday 12 September 2007 19:45, Ensor wrote:
Hi,
Yup!
But my point is that in prototyping some small SBC the rs232 stuff is about
the only thing on there typically that needs other than logic power (+5V)
unless there's some analog stuff there on the board that needs it.
MIDI, in every implementation I've ever seen, uses only a 5V supply.
I never did understand why current loops weren't used more...
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, ?a critter that can
be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
You don't even need "rs232 levels".
MIDI is a "current loop" interface isn't it?