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Re: Re: Redboot for Kinetis TWR-K70F120M


On 02.02.2012 09:55, Linh Nguyán wrote:
Dear all,
Good news. I have found and downloaded the Linux 2.6 kernel for
Cortex-M (currently is M3 for STM32F2, LPC1788, ARM fusion A2F) and
built successfully. I can porting to Cortex-M4 based on this kernel.
This is the link:
http://www.emcraft.com/index.php/component/jdownloads/view.download/6/8
or
http://www.emcraft.com/index.php/technology/98    (file name:
a2f-linux-linux-2.6.tar.bz2)

Thank you for pointing this out Linh.


Ilija



Thanks& Regards, Linh Nguyen

On Tue, Jan 10, 2012 at 3:03 PM, Ilija Kocho<ilijak@siva.com.mk> wrote:
Linh

Thank you for references.oreo


On 10.01.2012 03:38, Linh Nguyán wrote:
http://www.linux-arm.org/LinuxKernel/LinuxM3 this is the link about
Linux kernel for Cortex M3. I don't know much about ARM but I think
Cortex M3 and M4 is not much different.

Something being ported to Cortex-M architecture is a big step but it does not mean that it is ported to some hardware, being it Kinetis, STM32, LPC, etc. There's still some work (although not too much) such as basic hw initialization, clocking, some serial driver, etc.



http://www.cnx-software.com/2011/12/30/linux-for-cortex-m3-m4-microcontrollers/ this link said that "EmCraft also sells Linux BSP (for 99 USD â software only) for STMicroelectronics STM32F2, NXP NXP LPC1788 (Cortex M3) and Freescale Kinetis (Cortex M4) development boards.".

This looks promising although information is incomplete, they don't mention on what hardware to run uClinux for Kinetis and I guess TWR-K60N512 has too little memory. Of course TWR-K70 has more than enough.


So why uClinux can not port to Kinetis K70?
I haven't stated that. I merely asked for information on such port. Thanks
again for information.

Ilija


On Tue, Jan 10, 2012 at 4:37 AM, Ilija Kocho<ilijak@siva.com.mk> wrote:
On 07.01.2012 11:35, Linh Nguyán wrote:
Opps, my fail. "go" command occurs ^^!.

About "exec" command. Does it require MMU to load Linux kernel?
http://www.arm.com/community/software-enablement/linux.php?tab=uClinux
this link said that uClinux&      u-boot can run with *NON MMU* ARM

processors. Do you have any ways to run bootloader and Linux kernel
(uClinux) on *NON MMU* ARM??? Thanks so much.
Not at the moment.
I wonder if uClinux has being ported to Kinetis? Any reference?


Ilija



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