[Open-graphics] OGA block diagram?
Reimar.Doeffinger at stud.uni-karlsruhe.de
Wed Nov 14 07:36:10 EST 2007
On Tue, Nov 13, 2007 at 09:01:34PM +0100, Attila Kinali wrote:
> On Tue, 13 Nov 2007 16:51:58 +0100
> Reimar Döffinger <Reimar.Doeffinger at stud.uni-karlsruhe.de> wrote:
> > Well, IMO the only real problem is that it is hard to get the overview
> > what connection goes where actually.
> Well, that's normal with schematics. Ok, the OGD1 schematics
> are not the nicest, but they are clean and not badly structured.
> The schematics are in the complexity of maybe a program with 10-30k loc
> of C code. You don't expect to read that like a book and imediatly
> know which function is calling which and where they finaly end up, do you?
No, but with C, grep works better, and most importantly I can fit 4
source windows on my screen and it's still readable :-)
> > Also page 15 of the schematics has quite a few missing or misplaced
> > connection dots.
> Where? I don't see any such mistakes.
Possibly at the top of Q1, I admit I am a bit confused as to what that
box is supposed to mean.
At C278 the bottom one is too far to the left.
I also thought that D4/D5 should have one, but after comparing with the
other schematics that seems to be intentional that way?
> > IMO also for the power supply schematics, isn't there a connection dot
> > missing as well at those double diodes (which looks a bit weird with one
> > unconnected, what is the reason here?)?
> It's a dual diode device with only one diode used, nothing strange
> about this. What is strange there is the labeling of the pins (3,4,5
> instead of 1,2,3) but that might be due to the packaging (which i
> haven't checked)
Yes, true, I supposed so, but I'm not used enough at reading schematics
to see immediately that it is one package :-).
More information about the Open-graphics