Hi
I have not figured out which symbols (pictures shown below) these are.
Could someone of you tell me?
Thanks BeHa
Many of those can be figured out by doing an internet search (and/or Octopart search) on the part number given as the value. Except for IR700 they all look like standard electronic symbols used in the industry (essentially the standard vocabulary of electronics), and if you don’t what they are look on this as a learning opportunity.
A lot of them can be figured out by reading this wikipedia article: https://en.wikipedia.org/wiki/Electronic_symbol
Are you still on your quest to design a board for a RK3328?
( Quadcore A53 with DDR3 / DDR4)
http://opensource.rock-chips.com/images/d/d7/Rockchip_RK3328_Datasheet_V1.1-20170309.pdf
This is a pretty ambitious project for someone with your experience level.
I’m having a weird idea in my head that you took on a bet in a bar while drunk.
Would you be so kind to explain something of the background of this project, so I can understand and put this weird vision out of my head?
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Does the OP know about controlled impedance tracks and length tuning? DDR3/4 absolutely requires these.
OP BeHa has asked 4 questions on this forum. And they all seem to be for the same project.
In this post for example OP was confused about 8 decoupling caps connected to 9 pins.
https://forum.kicad.info/t/dont-understand-pin-configuration/15446
Estimating from those other posts OP has never heared of controlled inpedance.
When I see him/her asing what a symbol for an inductor of capacitor is I start wondering whether OP is living in ignorant bliss or is trolling. I do not mean to insult anyone, but I have touble finding the words to express my thoughts here.
During my electronic live I observe more and more people who, when don’t know something, instead of trying to find the answer themselves, begin with asking other to solve their problem for themselves (this is a lack of respect to others time).
In KiCad subject anyone who didn’t read even a “Getting started” I treat as such kind of people. Because of these if I see a question about ERC error for Power lines I prefere to send to “Getting started”. I believe that a title of doccument can open them their eyes how unorganised they are. But I am probably stupid believing in it.
Bad example. The getting started tutorial is notoriously bad and out of date. (Yes this needs fixing. Volunteers?)
I know.
But even being out of date it gives some overview and certainly after reading it noone should ask what is going on with these power lines.
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