Re: USB port: schematics and PCB

It would be great if indeed this appears to be true. In that case,  
three different devices (Ethernet, SD card, USB) can be connected to  
all three EXI busses, so the system performance would be maximized.

I'll design a version of my ethernet controller to fit onto the  
Serial Port 2. It will be soldered onto the mainboard, so it should  
be usable on GC's without this connector as well (I think they just  
removed the connector, the pinout should still be on the mainboard).  
Meanwhile, if someone has a GameCube running Linux with access to the  
mainboard, it should be able to confirm that it is on the EXI2 bus by  
measuring the CS pin voltage and poking 0x0 and 0x380 to 0xCC006828  
to enable/disable all CS pins on the EXI2 channel.

Regarding the port name confusion: I had a look at the wrong cover :- 
S. That's what happens when your 'cube is disassembed. Actually, the  
high speed port might be very interesting as well. The pin  
description from YAGCD resembles that of standard SDRAM IC's. It  
might be possible to expand the GC ARAM. However, I haven't got a  
clue on how to use this in software, or what size of SDRAM is  
supported. Is there perhaps extra RAM in the GB Player?

Cheers,

Rob

Op 30-apr-2007, om 4:32 heeft Albert Herranz het volgende geschreven:

> Albert Herranz <albert_herranz <at> yahoo.es> writes:
>> 1514 is the "Serial Port 2" connector.
>> So that text is claiming that "Serial Port 2" is related to the  
>> EXI0 bus, where
>> the Boot ROM is located.
>
> Uhmm.. I think I've messed it up.
>
> 1514 is the "Serial Port 1" connector.
> 1520 is the "Serial Port 2" connector.
> So "Serial Port 1" should be EXI0 (as we know from the BBA). And  
> "Serial Port 2"
> should be EXI2 from the drawings (FIG 26 and FIG 15C).
>
> Cheers,
> Albert
>
>
>
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