Re: [ECOS] Re: Redboot for Kinetis TWR-K70F120M

["Linh Nguyễn" <nvl1109@gmail.com>]

Hi Kocho, Morris and all,

Firstly thanks Kocho for your guide. I have initialized SDRAM
controller & add SDRAM region into linker script. Currently, I can
access SDRAM.

Now I have one question. Why my Redboot does not contain "go" & "exec"
commands? Which component of eCos implements these commands?

Have a nice weekend.

Thanks & Regards,
Linh Nguyen

On Fri, Jan 6, 2012 at 7:29 PM, Ilija Kocho <ilijak@siva.com.mk> wrote:
> On 05.01.2012 11:38, Linh Nguyễn 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.
>
> Ilija
>
> Little technical note: eCos mailing list filter permits only plain text so
> your HTML formatted mail has been rejected. In order to pass through
> instruct your e-mail client for plain text format when sending to eCos
> mailing list.
>>
>>
>> 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 Nguyễn 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
>>>
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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
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>>
>>
>>
>>
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>>
>>
>>
>

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