[ECOS] Re: Redboot for Kinetis TWR-K70F120M

Ilija Kocho ilijak@siva.com.mk
Fri Jan 6 12:30:00 GMT 2012

On 05.01.2012 11:38, Linh Nguyá»
n wrote:
> Hi all,
> Thanks for your replies. Currently, I don't understand about DDRAM of 
> K70. Do I need configure DDRAM session in linker file, or doing 
> somethings with DDRAM? K60 board does not have DDRAM, so where kernel 
> will be loaded when booting?ote

You shall need linker script with a region and section for DDRAM indeed. 
Also you will need some code for initialization of DDR controller and 
possibly DDRAM chip.


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> 2012/1/4 Morris, Richard <Richard.Morris@lifetech.com 
> <mailto:Richard.Morris@lifetech.com>>
>     Hi All,
>     Regarding using J-Link and Ecos.
>     I use J-Link with eCos and ARM processors.   I have used it with
>     the Kinetis K60, the NXP LPC2xxx family, Atmel AT91SAM family.
>     My configuration is:
>     Ubuntu Host 10.04
>     Eclipse 3.6
>     Zylin CDT Plugin (http://opensource.zylin.com/embeddedcdt.html)
>     GCC compiler:  provided with eCos or CodeSourcery's
>     Segger's GDB Server (running on Linux or Windows)
>     Segger's J-Link and/or J-Link Pro
>     Regards,
>     Richard
>     On Jan 3, 2012, at 6:01 AM, Ilija Kocho wrote:
>>     Hello Linh
>>     Thank you for your interest in eCos for Kinetis. First I would invite
>>     you to post your comments and questions to some of eCos mailing
>>     lists:
>>     http://ecos.sourceware.org/intouch.html The benefit is both for
>>     community and you, for instance I have no experience with J-Link, but
>>     somebody else may have.
>>     Regarding your attempt to run eCos on K70, apparently you are luckier
>>     than me :) as you already got a K70 tower.
>>     I am waiting for my K70 tower so I haven't been able to play with
>>     K70 so
>>     far, but from K70 RM I can assume that variant HAL may need some
>>     changes
>>     (Clocking, etc.) in order to become compatible with K70.
>>     Regarding your code: I would avoid changing variant default settings,
>>     you can achieve similar effect by stating requirements in
>>     platform HAL,
>>     Please look at K40 CDL.
>>     Regards
>>     Ilija
>>     On 03.01.2012 09:00, Linh Nguyá»
n wrote:
>>>     Dear Kocho,
>>>     Currently, I porting Redboot from TWR K60 to K70. I have used source
>>>     code from http://hg-pub.ecoscentric.com/ecos/. The attach files are
>>>     patch for TWR K70 and eCos config file for k70-redboot. Redboot for
>>>     K70 can build, but it can not run after download by IAR workbench
>>>     through J-Link. Can you spend some free times to get overview on it,
>>>     then give me your comments please. Thanks so much and have nice
>>>     week.
>>>     I'm looking forward to hearing from you.
>>>     Thanks & Regards,
>>>     Linh Nguyen
>>     --
>>     Before posting, please read the FAQ:
>>     http://ecos.sourceware.org/fom/ecos
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>     Richard Morris
>     *Senior Staff Firmware Engineer*
>     *T*  650.638.6883
>     850 Lincoln Centre Dr
>     MS 407-1
>     Foster City, CA 94404
>     USA
>     http://www.lifetechnologies.com <http://www.lifetechnologies.com/>
>     This email and its attachments are confidential. If you received
>     this email in error, please notify the sender and delete.

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