6 Dec
2007
6 Dec
'07
1:39 p.m.
Tony Duell wrote:
Or a normal rotary switch and a bunch of pull up/down
resistors (I don't
know if the enable lines are to be active high or active low)? Even more
direct. For that matter, what about a bank of mechancially-interlocked
buttons (I think you can still get such swtiches and the bracketry to
interlock them).
It just occurred to me that there's a possible problem with the
rotary switch plan. If I've selected "3" and I then want to select
"7",
then "4", "5", and "6" are briefly selected. Well, or
"2", "1", and
"0".... :)
If the selection sequence matters, you'd need some sort of delayed
response.
Doc