Re: LPC2000 is Little-endian

Started by phlpcmicro May 7, 2007
HI All,

I tried searching in the LPC2000 doc's - does anyone know where the
NXP doc's state little endian for the LPC2000's?

Thanks in advance.

Joe
--- In l..., "Paul Curtis" wrote:
>
> It's fixed little-endian. No big-endian mode, sorry.
>
> -- Paul.
>
> > -----Original Message-----
> > From: Leighton Rowe [mailto:leightonsrowe@...]
> > Sent: 12 July 2004 13:35
> > To: l...
> > Subject: [lpc2000] big-endian mode
> >
> > I understand that lpc21xx configures arm7 processor to work
> > in little-endian mode.
> >
> > Is it possible to change that around so that the processor
> > works in big-endian? If yes, how?
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
>

An Engineer's Guide to the LPC2100 Series

--- In l..., "phlpcmicro" wrote:
>
> HI All,
>
> I tried searching in the LPC2000 doc's - does anyone know where the
> NXP doc's state little endian for the LPC2000's?
>
> Thanks in advance.
>
> Joe
>

LPC2106/2105/2104 User Manual (September 17,2003) in the section
"Architectural Overview" on page 16. Last sentence of first paragraph.

Same for LPC213x User Manual on page 5.

Richard
Hello Joe,

On Monday 07 May 2007 17:36:04 phlpcmicro wrote:
> HI All,
>
> I tried searching in the LPC2000 doc's - does anyone know where the
> NXP doc's state little endian for the LPC2000's?
>
> Thanks in advance.
>
> Joe

that wasn't too hard - opened the LPC214x (first one that got under my mouse
cursor) user's manual, entered "endian" in the search box, clicked "next",
and got to page 5 (in Rev. 01 of the UM), which says:

The LPC2141/24/6/8 configures the
ARM7TDMI-S processor in little-endian byte order.

Best regards,

Dominic

> that wasn't too hard - opened the LPC214x (first one that got under
my mouse
> cursor) user's manual, entered "endian" in the search box, clicked
"next",
> and got to page 5 (in Rev. 01 of the UM), which says:
>
> The LPC2141/24/6/8 configures the
> ARM7TDMI-S processor in little-endian byte order.
>
> Best regards,
>
> Dominic
>

Thanks very one!

Ok... It's 2am in OZ... I must have skimmed past this section.

I have some of the ARM books - and they just say the ARM7TDMI
Sythesizable core can be little or big endian depending on implementation.

OK back to sleep now....I go.

Regards
Joe