Re: USB port

PATx box <patx_boite <at> hotmail.com> writes:
> I read a bit this morning before ordering parts and the MAX3421 will be 
> needed instead of the MAX3420 witch is for peripheral devices only ...

Yes, I noticed that too.

> I ve ordered parts and i will make a shematic based on figure 21 (datasheet) 
> and the memcard pinout...

Remember to wire up the irq line too. We'll need that.

My biggest concern is that the controller doesn't support a 32MHz clock
(according to the data sheet it supports a maximum of 26MHz), so we'll have to
run the SPI bus at 16MHz, unless someone figures out how to program the EXI
interface to a intermediate clock speed.

I think it would be a good idea to keep all the details of this mini-project on
the project's wiki. I've started a page specially for that:

http://www.gc-linux.org/wiki/EXI:USBHostAdapter

Cheers,
Albert



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