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Discussion Groups | Comp.Arch.Embedded | uC Slection for a learner project

There are 29 messages in this thread.

You are currently looking at messages 20 to 29.

Re: uC Slection for a learner project - AC Me - 09:28 05-05-08

On May 4, 8:00=A0pm, donald <Don...@dontdoithere.com> wrote:
> AC Me wrote:
>
> 8< =A0Wishful thinking snipped >8
>
> Have you seen any project/products on the net the even comes close to
> your requirements ??

Not really.
>
> I think you will find some devices that will be close.
>
> So look at those and see what those have for storage vs power
> specifications.
>
> This will give you a good idea what others have found and what design
> tradeoffs they have made.
>
> Why re-invent the wheel, again.
>
> donald

Take care.

Mike



Re: uC Slection for a learner project - AC Me - 09:49 05-05-08

On May 4, 6:17=A0pm, linnix <m...@linnix.info-for.us> wrote:
> On May 4, 9:40 am, Grant Edwards <gra...@visi.com> wrote:
>
> > On 2008-05-04, Frank-Christian Kruegel <dontmai...@news.invalid> wrote:
>
> > >>9. Reasonable overall cost.
> > >>10. The availability of evaluation boards at perhaps $100 or less.
> > >>11. Free or cheap development tools
>
> > > If you go for AVR you don't need to buy anything.
>
> > Same for MSP430. =A0There's a free limited IAR toolchain you can
> > download from TI. =A0And there's mspgcc, which is also free.
> > Parallel-port JTAG interfaces start at about $15, and eval
> > boards at about $20.
>
> But both chips are too expensive. =A0We asked Atmel to give us something
> like the
>
> http://san-tech-lcd.info/images/ST2.gif
>
> They think we are nutty, so we have to downgrade to 6502 for the high
> volume project.

Thanks Grant and Frank-Christian

I think I'm beginning to put a 'shape' on the concept.
I will have a uC that will read intruments. This will store the
acquired data in
RAM. When there are 512 bytes these will be written to a MMC. The
entire
contraption will be configured via an RS232 PC connection. The data on
the
MMC can be transferred to a PC by use of a MMC reader attached to the
PC.

I have a further question that will give me a head-start in my
continued
research on this project.
MMC: I understand that MMCs have a controller of their own built-in.
When writing (or reading for that matter) a MMC is it accessed like on-
board
RAM, eg the data at a specific address is read or written, or is it
accessed
by some higher level mechanism, eg. request the on-board uC to open/
read/
write a particular file, or something else?

Take care.

Mike

Re: uC Slection for a learner project - N1 - 14:36 05-05-08

Ammiravo la mia cresta allo specchio quando AC Me 
<m...@gofree.indigo.ie> ha detto :

> I think I'm beginning to put a 'shape' on the concept.
> I will have a uC that will read intruments. This will store the
> acquired data in
> RAM. When there are 512 bytes these will be written to a MMC. The
> entire
> contraption will be configured via an RS232 PC connection. The data on
> the
> MMC can be transferred to a PC by use of a MMC reader attached to the
> PC.
> 

look at Arduino (www.arduino.cc). It's abouta 30€ with shipment.
I'm still trying to have the MMC working but it should not be too hard.

-- 
Nuno on zx-6r '04 & CR 250 '98 working in progress...
Say you, say me...say 'na mignotta!
*** www.gladio.org ***


Re: uC Slection for a learner project - AC Me - 15:46 05-05-08

On May 5, 7:36=A0pm, N1 <i...@me.it> wrote:
> Ammiravo la mia cresta allo specchio quando AC Me
> <mmal...@gofree.indigo.ie> ha detto :
>
> > I think I'm beginning to put a 'shape' on the concept.
> > I will have a uC that will read intruments. This will store the
> > acquired data in
> > RAM. When there are 512 bytes these will be written to a MMC. The
> > entire
> > contraption will be configured via an RS232 PC connection. The data on
> > the
> > MMC can be transferred to a PC by use of a MMC reader attached to the
> > PC.
>
> look at Arduino (www.arduino.cc). It's abouta 30=80 with shipment.
> I'm still trying to have the MMC working but it should not be too hard.
>
> --
> Nuno on zx-6r '04 & CR 250 '98 working in progress...
> Say you, say me...say 'na mignotta!
> ***www.gladio.org***

The primary reason I am doing this is to learn, although it will be
nice to have
a useful item at the end for all my work. Amongst other things,  I
want to use
assembler and/or C.

Thanks for the idea, though.

Take care.

Mike

Re: uC Slection for a learner project - Frank-Christian Kruegel - 16:06 05-05-08

On Mon, 5 May 2008 06:49:07 -0700 (PDT), AC Me <m...@gofree.indigo.ie>
wrote:

>
>I have a further question that will give me a head-start in my
>continued
>research on this project.
>MMC: I understand that MMCs have a controller of their own built-in.
>When writing (or reading for that matter) a MMC is it accessed like on-
>board
>RAM, eg the data at a specific address is read or written, or is it
>accessed
>by some higher level mechanism, eg. request the on-board uC to open/
>read/
>write a particular file, or something else?

Since it's serial only it requires special procedures to put and get blocks
of data on it.

Read this: http://elm-chan.org/docs/mmc/mmc_e.html
http://www.hcilab.org/projects/particles/particles-mmc.htm


Mit freundlichen Grüßen

Frank-Christian Krügel

Re: uC Slection for a learner project - N1 - 05:30 06-05-08

Ammiravo la mia cresta allo specchio quando AC Me 
<m...@gofree.indigo.ie> ha detto :

> The primary reason I am doing this is to learn, although it will be
> nice to have
> a useful item at the end for all my work. Amongst other things,  I
> want to use
> assembler and/or C.
> 

I don't understand your opposition...what has Arduino against learning or 
ASM/C ??

-- 
Nuno on zx-6r '04 & CR 250 '98 working in progress...
Say you, say me...say 'na mignotta!
*** www.gladio.org ***


Re: uC Slection for a learner project - AC Me - 14:37 06-05-08

On May 5, 9:06=A0pm, Frank-Christian Kruegel <dontmai...@news.invalid>
wrote:
> On Mon, 5 May 2008 06:49:07 -0700 (PDT), AC Me <mmal...@gofree.indigo.ie>
> wrote:
>
>
>
> >I have a further question that will give me a head-start in my
> >continued
> >research on this project.
> >MMC: I understand that MMCs have a controller of their own built-in.
> >When writing (or reading for that matter) a MMC is it accessed like on-
> >board
> >RAM, eg the data at a specific address is read or written, or is it
> >accessed
> >by some higher level mechanism, eg. request the on-board uC to open/
> >read/
> >write a particular file, or something else?
>
> Since it's serial only it requires special procedures to put and get block=
s
> of data on it.
>
> Read this:http://elm-chan.org/docs/mmc/mmc_e.htmlhttp://www.hcilab.org/pro=
jects/particles/particles-mmc.htm
>
> Mit freundlichen Gr=FC=DFen
>
> Frank-Christian Kr=FCgel

Thank you, Frank-Christian.
This is very useful. I appreciate it.

Mike

Re: uC Slection for a learner project - AC Me - 14:40 06-05-08

On May 6, 10:30=A0am, N1 <i...@me.it> wrote:
> Ammiravo la mia cresta allo specchio quando AC Me
> <mmal...@gofree.indigo.ie> ha detto :
>
> > The primary reason I am doing this is to learn, although it will be
> > nice to have
> > a useful item at the end for all my work. Amongst other things, =A0I
> > want to use
> > assembler and/or C.
>
> I don't understand your opposition...what has Arduino against learning or
> ASM/C ??
>
> --
> Nuno on zx-6r '04 & CR 250 '98 working in progress...
> Say you, say me...say 'na mignotta!
> ***www.gladio.org***

I understood from the website that the device is programmed using
the 'Arduino Programming Language'

I would like to take this opportunity to thank you all very much for
your time and the valuable assistance you have provided. I do
appreciate it very much.

Take care all.

Mike

Re: uC Slection for a learner project - N1 - 16:46 06-05-08

Ammiravo la mia cresta allo specchio quando AC Me 
<m...@gofree.indigo.ie> ha detto :

> I understood from the website that the device is programmed using
> the 'Arduino Programming Language'
> 

If you read carefully you can see that APL is just a subset of C.
Anyway you can use avr-gcc and use the standard C language.

-- 
Nuno on zx-6r '04 & CR 250 '98 working in progress...
Say you, say me...say 'na mignotta!
*** www.gladio.org ***


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