Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss

Atmel AT91SAM7S-EK evaluation board

14 views
Skip to first unread message

Ali

unread,
Oct 22, 2007, 5:23:48 AM10/22/07
to

Hello All,

I'll have few holidays in coming month so was thinking to
have something interesting to play around. I have done little work
with ARMx with GNU tool chain but honestly i should say that there
are still things that make me feel unfomfortable. I remember reading
this [ http://www.embedded.com/design/opensource/200000632?_requestid=46173
] 7 part article while ago and it looks a good basic starting point to
me.

I would love to hear if anyone out there has read/followed this
tutorial? Or any other such tutorial would be appreciated.

One thing more, I have tried digikey and mouser and its easy to get
the development board. But there is no information what CPU they would
be shipping. any hints to make sure that I get AT91SAM7S64 (64KB of
on-chip flash ROM and 16KB of static RAM)?


regards,
ali

Stef

unread,
Oct 22, 2007, 10:28:23 AM10/22/07
to
In comp.arch.embedded,

Ali <abdul...@gmail.com> wrote:
>
> One thing more, I have tried digikey and mouser and its easy to get
> the development board. But there is no information what CPU they would
> be shipping. any hints to make sure that I get AT91SAM7S64 (64KB of
> on-chip flash ROM and 16KB of static RAM)?

All the ones iI've got have the '256 on them. This is what the EK userguide
says:

"The board is generally equipped with an AT91SAM7S256
(64-pin PQFP package)"


--
Stef (remove caps, dashes and .invalid from e-mail address to reply by mail)

Ali

unread,
Oct 22, 2007, 11:09:08 AM10/22/07
to
On Oct 22, 10:28 pm, Stef <stef...@yahooI-N-V-A-L-I-D.com.invalid>
wrote:
> In comp.arch.embedded,

But any how to get AT91SAM7S64 on it?

FreeRTOS.org

unread,
Oct 22, 2007, 11:21:50 AM10/22/07
to
"Ali" <abdul...@gmail.com> wrote in message
news:1193065748.0...@t8g2000prg.googlegroups.com...

> On Oct 22, 10:28 pm, Stef <stef...@yahooI-N-V-A-L-I-D.com.invalid>
> wrote:
>> In comp.arch.embedded,
>>
>> Ali <abdulra...@gmail.com> wrote:
>>
>> > One thing more, I have tried digikey and mouser and its easy to get
>> > the development board. But there is no information what CPU they would
>> > be shipping. any hints to make sure that I get AT91SAM7S64 (64KB of
>> > on-chip flash ROM and 16KB of static RAM)?
>>
>> All the ones iI've got have the '256 on them. This is what the EK
>> userguide
>> says:
>>
>> "The board is generally equipped with an AT91SAM7S256
>> (64-pin PQFP package)"


I think the amount of FLASH and RAM are the only differences, as the 256 has
more than the 64 then there should not be a problem. You can use either.

--
Regards,
Richard.

+ http://www.FreeRTOS.org
13 official architecture ports, 1000 downloads per week.

+ http://www.SafeRTOS.com
Certified by TÜV as meeting the requirements for safety related systems.


Sergey Kubushin

unread,
Oct 22, 2007, 11:19:04 AM10/22/07
to
FreeRTOS.org <noe...@address.com> wrote:
> "Ali" <abdul...@gmail.com> wrote in message
> news:1193065748.0...@t8g2000prg.googlegroups.com...
>> On Oct 22, 10:28 pm, Stef <stef...@yahooI-N-V-A-L-I-D.com.invalid>
>> wrote:
>>> In comp.arch.embedded,
>>>
>>> Ali <abdulra...@gmail.com> wrote:
>>>
>>> > One thing more, I have tried digikey and mouser and its easy to get
>>> > the development board. But there is no information what CPU they would
>>> > be shipping. any hints to make sure that I get AT91SAM7S64 (64KB of
>>> > on-chip flash ROM and 16KB of static RAM)?
>>>
>>> All the ones iI've got have the '256 on them. This is what the EK
>>> userguide
>>> says:
>>>
>>> "The board is generally equipped with an AT91SAM7S256
>>> (64-pin PQFP package)"


> I think the amount of FLASH and RAM are the only differences, as the 256 has
> more than the 64 then there should not be a problem. You can use either.

And if you really want that SAM7S64 part, you can replace what's on the EVB.
It has dual footprint for the MCU.

---
******************************************************************
* KSI@home KOI8 Net < > The impossible we do immediately. *
* Las Vegas NV, USA < > Miracles require 24-hour notice. *
******************************************************************

--
Posted via a free Usenet account from http://www.teranews.com

Stef

unread,
Oct 22, 2007, 4:46:46 PM10/22/07
to
In comp.arch.embedded,
Sergey Kubushin <k...@koi8.net> wrote:

> And if you really want that SAM7S64 part, you can replace what's on the EVB.
> It has dual footprint for the MCU.

The LQFP48 is only required for the '32 all others are LQFP64. You need to
remove the existing CPU anyway, as the LQFP48 is under the LQFP64.

But if you really can only use the '64 (I really can't understand why
though), buying that separately and replacing it is a good option.

Ali

unread,
Oct 22, 2007, 8:53:19 PM10/22/07
to
On Oct 23, 4:46 am, Stef <stef...@yahooI-N-V-A-L-I-D.com.invalid>
wrote:

Thanks for input.

> But if you really can only use the '64 (I really can't understand why though),

I was just trying to stick to tutorial specifications. Anyway, I'll
give it a try.

http://www.embedded.com/design/opensource/200000632?_requestid=46173

thanks,
ali

Ali

unread,
Oct 22, 2007, 8:57:27 PM10/22/07
to

Folks thanks for input. And I hope x256 will be ok.
But, any thoughts for tutorial ? I can't see even a single comment
there (Embedded.com) although It was uploaded on 06/26/07.

regards,
ali

Anthony Fremont

unread,
Oct 22, 2007, 9:49:13 PM10/22/07
to
Ali wrote:
> Folks thanks for input. And I hope x256 will be ok.
> But, any thoughts for tutorial ? I can't see even a single comment
> there (Embedded.com) although It was uploaded on 06/26/07.

When is the next article supposed to come out? I don't want to rain on your
parade, but it has been four months since the first article and I couldn't
find any sign of the second one.

I just got started in the ARM7 world myself. I bought an Olimex board from
www.sparkfun.com (a way cool place), a JTAG module, and dove in. I was
going to get a SAM7, but switched to the NXP at the last minute because the
Atmel board was out of stock. After digging thru both manufacturers'
documentation, I think I like the NXP a bit better anyway.

There's a fairly good tutorial by a fellow named James Lynch. It's called
"ARM Cross Development with Eclipse". It shows how to put together a
working toolchain for cross compiling.


Ali

unread,
Oct 22, 2007, 11:37:46 PM10/22/07
to
On Oct 23, 9:49 am, "Anthony Fremont" <nob...@noplace.net> wrote:
> Ali wrote:
> > Folks thanks for input. And I hope x256 will be ok.
> > But, any thoughts for tutorial ? I can't see even a single comment
> > there (Embedded.com) although It was uploaded on 06/26/07.
>
> When is the next article supposed to come out? I don't want to rain on your
> parade, but it has been four months since the first article and I couldn't
> find any sign of the second one.
>
> I just got started in the ARM7 world myself. I bought an Olimex board fromwww.sparkfun.com(a way cool place), a JTAG module, and dove in. I was

> going to get a SAM7, but switched to the NXP at the last minute because the
> Atmel board was out of stock. After digging thru both manufacturers'
> documentation, I think I like the NXP a bit better anyway.
>
> There's a fairly good tutorial by a fellow named James Lynch. It's called
> "ARM Cross Development with Eclipse". It shows how to put together a
> working toolchain for cross compiling.

Search embedded.com for 'Building Bare-Metal ARM Systems with GNU' you
will see '10' part tutorial there.
Yeah , NXP is fine but just wan tto stick to atmel;-)

http://www.embedded.com/TechSearch/Search.jhtml;jsessionid=JOSL2HGUF4MQOQSNDLPCKH0CJUNN2JVN?sortSpec=score+desc&site_id=Embedded.com&Site+ID=Embedded.com&c1=All&queryText=Building+Bare-Metal+ARM+Systems+with+GNU&Search.x=7&Search.y=10

ali

John Devereux

unread,
Oct 23, 2007, 4:53:56 AM10/23/07
to
Ali <abdul...@gmail.com> writes:

I read all of it and thought it was very good. Especially useful if
you are thinking about experimenting with c++ - I have not seen this
covered before.

The actual code is labelled "all rights reserved". I am not sure what
that is supposed to mean in practice but I guess you can't use it
as-is for the basis of your own projects. But the insight gained
should still be worthwhile.

--

John Devereux

FreeRTOS.org

unread,
Oct 23, 2007, 5:06:34 AM10/23/07
to
>
> There's a fairly good tutorial by a fellow named James Lynch. It's called
> "ARM Cross Development with Eclipse". It shows how to put together a
> working toolchain for cross compiling.
>

The FreeRTOS.org site also has some information on using Eclipse/GCC/ARM:

http://www.freertos.org/portlpc2368_Eclipse.html
http://www.freertos.org/portLM3Sxxxx_Eclipse.html
[just working on one for the SAM7 too]

Using Eclipse with the FreeRTOS.org demos:
http://www.freertos.org/Eclipse.html
http://www.freertos.org/Eclipse_CDT.html

Note that these direct links won't show you the menu frame. To see the menu
frame go directly to the homepage.

Ali

unread,
Oct 23, 2007, 5:26:42 AM10/23/07
to
On Oct 23, 4:53 pm, John Devereux <jdREM...@THISdevereux.me.uk> wrote:

Yes John, I must agree with you. It is indeed kinda unique and article
concentrates on over all system rather just a single thing. I can see
people recommending another tutorial which is using AMR7 from NXP ,
but IMHO that tutorial is merely for configuring the toolchain and
thats it. It does not talk about such details that are covered in Miro
Samek's article.

Maybe no one has tried that and thats why there are no comments. Or
maybe no worth to comment;-)

ali

Ali

unread,
Oct 23, 2007, 9:26:45 AM10/23/07
to

What is the difference between AT91SAM7S-EK IAR and AT91SAM7S-EK RSV?

thanks,
ali

Ali

unread,
Oct 25, 2007, 9:40:02 PM10/25/07
to

Ok, IAR means board shipped with IDE from IAR company and J-LINK ICE
interface with its A/B type USB cable.

But no Idea what comes with RSV version!

ali


0 new messages