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[ts-7000] Re: Endian Switch, 7300, Suggestions, Pitfalls?

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Subject: [ts-7000] Re: Endian Switch, 7300, Suggestions, Pitfalls?
From: "sletter1" <>
Date: Fri, 16 Mar 2007 11:10:24 -0000
I'm writing software to interface with their hardware.  They won't
(can't) give me a board.  All I have is the kernel version, the
compiler versions, and general descriptions of the hardware.  The
little endian customer is using a Conexant NP.  The Cirrus in the 7300
is "close enough".  The big endian customer is using an XScale.

Since I won't be interfacing directly with their hardware,  all I need
is something (hardware wise) close.

I expect the answer to your question is pretty obvious now (assuming I
actually understood what you were asking).  The board is already in
place.  This is an upgrade for their customers.  I'm adding additional
features.  If this was a new project, it wouldn't matter.

--- In  Jim Jackson <> wrote:
>
> 
> 
> 
> On Thu, 15 Mar 2007, sletter1 wrote:
> 
> > Not an option for me but thanks.  I have to support a customer.  Looks
> > like I need to find and eval a different board that has been set up
> > for big endian.  Just switching the control bit won't suffice, I
> > guess.  Seems there is this silly matter of address and data lines :)
> >
> > Refer to:
> >
http://lists.arm.linux.org.uk/pipermail/linux-arm-kernel/2001-November/006141.html
> >
> > This 7300 isn't a waste though, I have a customer little endian too.
> 
> I'm just curious as to why it matters?
> 
> Jim
> 
> >
> > --- In  "Don W. Carr" <doncarr@> wrote:
> > >
> > > On the endian issue, you can not change the processor, so you will
> > have to
> > > convert the data that you communicate. Use ntohs(), htohl(),
htons(),
> > > htonl() to do the converting. Don.
> > >
> > > On 15 Mar 2007 04:27:03 -0700, sletter1 <sletter1@> wrote:
> > > >
> > > >   I have just received my first ts-7300. I got it with the SD
card and
> > > > Linux already installed. When I looked it over, I found that it is
> > > > little endian and I need to switch it to big. Any suggestions,
> > > > pitfalls, explicit directions for complete idiots would be
> > appreciated.
> > > >
> > > > Fortunately, I'm not a complete idiot. There are parts missing...
> > > >
> > > >
> > > >
> > >
> > >
> > >
> > > --
> > > Dr. Don W. Carr
> > > J. G. Montenegro 2258
> > > Guadalajara, Mexico
> > > +52-333-630-0704
> > > +52-333-836-4500 ext 2930
> > >
> >
> >
> >
>




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