[ECOS] Talking of cheap eval boards...

[ECOS] Talking of cheap eval boards...

[John Dallaway]

Talking of cheap eval boards, I came across the following board this
morning:

  http://preview.tinyurl.com/37qgzh6

STM32F103VET6, UART on DB-9, standard 20-way JTAG, RTC, MicroSD, QVGA
colour LCD (with touchscreen), DataFlash, GPIO header.

US$ 58.00. Currently with free shipping worldwide.

It should be very easy to bring up eCos on this hardware by adapting the
STM3210E-EVAL platform port. eCos support for the LCD and touchscreen
would make a great student project.

I have no affiliation with the vendor.

John Dallaway

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Re: [ECOS] Talking of cheap eval boards...

[Manuel Borchers]

Am Mittwoch, den 17.11.2010, 10:13 +0000 schrieb John Dallaway: 
> STM32F103VET6, UART on DB-9, standard 20-way JTAG, RTC, MicroSD, QVGA
> colour LCD (with touchscreen), DataFlash, GPIO header.

Thanks for the pointer! I ordered one, yesterday. I'll see when I get
time to build a board-port to it. May guess is sometime in the next
year...


Cheers,
Manuel

-- 
Manuel Borchers

Web: http://www.matronix.de
eMail: manuel@matronix.de


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[ECOS] Re: Talking of cheap eval boards...

[John Dallaway]

Hi Manuel

Ref: http://preview.tinyurl.com/37qgzh6

Manuel Borchers wrote:

> Am Mittwoch, den 17.11.2010, 10:13 +0000 schrieb John Dallaway:
> 
>> STM32F103VET6, UART on DB-9, standard 20-way JTAG, RTC, MicroSD, QVGA
>> colour LCD (with touchscreen), DataFlash, GPIO header.
> 
> Thanks for the pointer! I ordered one, yesterday. I'll see when I get
> time to build a board-port to it. May guess is sometime in the next
> year...

I would appreciate your opinion on build quality when the board arrives.
The price has dropped to US$ 49.30 !

John Dallaway

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Re: [ECOS] Re: Talking of cheap eval boards...

[Peter Korsgaard]

>>>>> "JD" == John Dallaway <john@dallaway.org.uk> writes:

Hi,

>>> STM32F103VET6, UART on DB-9, standard 20-way JTAG, RTC, MicroSD, QVGA
>>> colour LCD (with touchscreen), DataFlash, GPIO header.
>> 
>> Thanks for the pointer! I ordered one, yesterday. I'll see when I get
>> time to build a board-port to it. May guess is sometime in the next
>> year...

JD> I would appreciate your opinion on build quality when the board arrives.
JD> The price has dropped to US$ 49.30 !

I know it isn't quite comparable (8KB RAM/128KB FLASH, less
peripherals), but you could sign up for the EBV design contest and get a
board with a STM32F100RBT6B for free (only open for people within EMEA
countries):

http://www.ebv.com/en/products/stm32-design-contest.html

-- 
Bye, Peter Korsgaard

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Re: [ECOS] Re: Talking of cheap eval boards...

[Manuel Borchers]

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Hi John, hi list,

Am Donnerstag, den 25.11.2010, 09:52 +0000 schrieb John Dallaway:
> >> STM32F103VET6, UART on DB-9, standard 20-way JTAG, RTC, MicroSD, QVGA
> >> colour LCD (with touchscreen), DataFlash, GPIO header.
> > 
> > Thanks for the pointer! I ordered one, yesterday. I'll see when I get
> > time to build a board-port to it. May guess is sometime in the next
> > year...
> 
> I would appreciate your opinion on build quality when the board arrives.
> The price has dropped to US$ 49.30 !

My board arrived today. I had no time to test the CPU, but there is a
demo of uC/GUI flashed on it, so I could verify the board works.

The build quality is nearly perfect. Good solder-stop mask, no could
soldering points, no flux residue, ICs and other components perfectly
placed.
Nearly perfect because my CPU board has two long, but fine scratches on
the backside. The solder-stop mask is a bit scratched away, but the
traces are perfectly intact. I guess this could be only my board,
because they seem to be randomly placed on the backside. The
display-board is pefrect, there are no scratches and everything else as
described for the CPU board.

Anyone considering buying one of these should keep in mind that the
STM32F103 has no ethernet on-board and this CPU board doesn't have an
external ethernet chip on it. I also saw boards (from the same bidder)
with a DM9xxx on it, so I guess it's possible to attach one. But I
didn't investigate the pinouts of the connectors too deep (the display
controller is connected to the external memory bus, though).

Cheers,
Manuel

-- 
Manuel Borchers

Web: http://www.matronix.de
eMail: manuel@matronix.de

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