[EE:] How do you create and understand circuits? (i.e. why amisostoopid)
Dumitru Stama email (remove spam text)
LM> Thank you _very_ much, Olin, for taking the time to explain this in your own way. I was actually hoping you would answer because I know you also teach electronics and I figured you'd have a good
LM> insight on ways to help someone along.
LM> I'll really give your circuit a good look. But so far no one has answered my question on how/where to start. Do I start at the + power supply and then make my way through all the components
LM> imagining in what "state" the current is in as it passes through each piece?
I started learning electronics as a hobby two years ago. I was just
like you and i am still a beginner. Also i used x86 assembly for a
long long time and i came from programming world. I can tell you
exactly what made the things easy for me : the resistor :-)
Yes, you read correctly. Just like Olin said i just tried to
understand the resistor in all possible ways and from that point on it
was just easy. Let me put it this way :
The current will follow the shortest path rather than the longest one.
A resistor is in simple words a longer path than a straight wire.
If you have a junction with two possibilities ahead : one 10k resistor
and a 1k resistor the current will go to the 1k path since 1k "road"
is shorter that the 10k "road". I hope you get it like i did, is
really simple. This way you can quickly see how a pull-down or a
pull-up resistor works. Try keeping the shortest-road in your head
when looking at circuits and you will see really soon some improvments
For me it was this simple...
In reply to: <58307749BE7222408769DFEE3255BF5452DB5C@emeamail15.emea.sas.com>
See also: massmind.org/techref/io/serial/spis.htm?key=miso