[gta02-core] USB schematics

[Rene Harder]

Álvaro Lopes wrote:
> Rene Harder wrote:
>   
>> Hi
>>
>> I finished the USB part and commited to svn.
>>     
>
> There seems to be a problem with 74XG125. Did you change the device ?
>   
No i didn't, what's the problem?
> One wire (nOE) is not connected, and pin names are in bold. I don't remember drawing them bold however...
>   
Thanks and fixed. The pin names are not bold with me, they look the same
as the other symbols.

> Also R4917 seems to close to the wires. And there are a few places where you can avoid crossing wires (like C4909<->VIN pin).
>   
That's true, but then i need to move the C4909 up and rotate it
sidewards. I preferred the crossing more than a rotated cap. I'll have
another look into it.

> Otherwise loos good, thanks :)
>
> Álvaro
>
>   
>> I found some problems while i was working the schematics.
>>
>> The reference of some varistors start with C instead of D.
>> Maybe there supposed to be capacitors, which actually would make sense.
>> There are 3 varistors on the USB_VBUS line 2 of them labeled with C.
>> Anyone an idea, why there are 3, I think one would be more than enough.
>>
>> There is an error in the om schematics, the varistors connected to the
>> USB power line have an allowed dc operating voltage of 5.6V (data sheet)
>> instead of 2.4V (om schematics).
>>
>> Also om is using capitalized SI prefixes e.g. kilo=K, nano=N. That might
>> cause confusion if you have milli=M and Mega=M. I think it's better to
>> stay with the official captions  kilo=k, nano=n, mega=M etc.
>>
>>
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>>     
>
>