[gta02-core] Next phase: the schematics
werner at openmoko.org
Thu Jun 18 02:00:45 CEST 2009
?lvaro Lopes wrote:
> I had to write a new resistor symbol (the one US-like, with a zigzag
> line). It's not perfect but should be enough for our needs.
Looks nice. I've added it to the library and the expanded view.
> Another symbol we need is an inductor - Kicad's is too large, and seems
> to have a width non-divisible by 50mil.
Hmm, it's 100 mil (2 grid points) longer than the resistor, but seems
to be perfectly on-grid.
> The power pins are "VAA" with a 0.5mil font size.
Ah, nice. But the larger text now overlaps the circle. I think we need
a new symbol for our powers.
> I also added a "Tolerance" field to resistors that depict their low
> I'm avoiding as much as possible to cross wires, so you might see
> many power pins all around (like VBAT_SYS). I think this makes
> design more readable.
I like that. But at EXTONx, you made one of those evil crosses.
(Openmoko did plenty of them too :-( )
If you "Plot" the sheet to Postscript, you'll see that the circle
is hard to spot. So it would be better to use an inverted F shape,
with VB_SYS on top of the vertical line.
> We also have a lot of NC resistors, maybe we should get rid of some..
Yeah, there's a lot of stuff that's left over from R&D ...
> I'll resume my schematic work on PMU tomorrow. Until then :)
Excellent. Thanks a lot !
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