Thread (2 messages) flat view 2 messages, 2 authors, 2005-05-17

Re: MPC885 - USB HCI drivers.

From: Wolfgang Denk <hidden>
Date: 2005-05-16 23:27:58

In message [ref] you wrote:
quoted
My advice: use a _real_ USB controller.
Are there known problems with CPM-based USB controllers?  I'm
Ummmm... yes, there are. Especially if you want to use it as  a  host
comtroller  (which  is  never  was designed for). Even more, if there
might be other periopherals in your system that might need  a  bit  a
CPM performance. Or ...

No, I better stop here. Please ask your  Freecale  sales  representa-
tive. He may know better. [Or not, maybe.]
completely new to the subject, but we are designing a board assuming
we can use the USB controller on an MPC8555E.
You can do that. Anything can be done. But in this case I don't  know
of an efficient way to do it. But my knowledge is limited, obviously.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
Man did not weave the web of life; he  is  merely  a  strand  in  it.
Whatever he does to the web, he does to himself.     - Seattle [1854]
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