[En-Nut-Discussion] Port to other Cortex M3 processors?

[Ulrich Prinz]

Hi!


Michael Fischer started LM3 port in the same way I do it for STM32. You find some CPU specifics in the devnut_m3n branch at /nut/arch/cm3/dev/lm3


I am pretty sure that there must be something like the stm32f10x.h for lm3 too. But I don't have any devkit nor any details about these TI chips.


And yes, I am still busy in that branch. But as I have to finish a project, already based on STM32+Nut/OS, and fix some bugs in at91_emac handling, I got delayed. 
For the port of the CortexM3 in the branch only some few things are missing:
EMAC
SPI
USB


If these are done, the branch will be merged to the trunk. I am pretty sure it will not make it into 4.9.10 but there is a good chance to make it into 4.9.11 or may be a 4.10.0.0 if Harald agrees. Introducing a new architecture is not a minor release upgrade.


The branch iteself is not limited to STM32, it is limited to CortexM3. That's why we introduced another directory level. It separates the different Chips better and provides better readability in the code and nutconf. So you can still have incomplete and not compiling code in lm3 subtree but it doesn't interrupt compiling STM32.


Best Regards
Ulrich



-----Original Message-----
From: Michel <unreal at home.nl>
To: Ethernut User Chat (English) <en-nut-discussion at egnite.de>
Sent: Wed, Nov 24, 2010 11:46 am
Subject: Re: [En-Nut-Discussion] Port to other Cortex M3 processors?


Hello all,

I recently ordered a LM3 9xxx evaluation kit and thought it would be
nice to see how ethernut runs on it.
I ran into some problem which I could solve, but now I am getting a
little stuck.
It seems there is no equivalent for the include/arch/cm3/stm32f10x.h for
the LM3 series.
So my question is: what is the status for the Cortex M3?
Is it limited to the STM ones?
Is anybody (still) working on it?

I think I can use the lm3s9b96.h from the Stellaris CMIS kit.
Any thoughts?
Kind regards,
Michel

On vr, 2010-10-01 at 18:23 +0200, Ulrich Prinz wrote:

> Hi Willian!
> 
> Michael Fischer started the LM3 integration based on my CortexM3 port 
> for SM32F series chips.
> 
> May be you like to join in?
> 
> development branch is
> https://ethernut.svn.sourceforge.net/svnroot/ethernut/branches/devnut_m3n
> 
> Give me a note if you like to so.
> 
> Best regards
> Ulrich
> 
> Am 03.08.2010 22:04, schrieb William Basser:
> > Is there any intent or has anyone attempted to port Ethernut to the luminary
> > series LM3s9B90?
> > _______________________________________________
> > http://lists.egnite.de/mailman/listinfo/en-nut-discussion
> _______________________________________________
> http://lists.egnite.de/mailman/listinfo/en-nut-discussion
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