Small ARM board running capable of running Linux

The new AT91SAM7X comes close, but no Linux.  Other OS's however.  See
www.freertos.org/portsam7xiar.html

Regards,
Richard.



http://www.FreeRTOS.org

Sorry, wrong link.  This link shows the Ethernet and the USB on the SAM7X:
http://www.freertos.org/portsam7xlwIP.html

Regards,
Richard.

http://www.FreeRTOS.org

A Gumstix, plus an EtherStix and a Robostix or Audiostix expansion
boards would give you everything but the realtime clock. The serial
ports are TTL level though, not RS232. The Robostix board has on
on-board AVR which provides multiple GPIO and ADC, the Audiostix
provides fewer A/D and GPIO but saves you having to write for two
platforms (and you get audio - hence the name).

It is small (very small) and runs Linux out of the box.

http://www.gumstix.com/


Tim
--
You are being watched. This gives you power.

I like the  Gumstix, but they only have USB client.

I just ordered a Linkxys NSLU2. While this would still need
something else for ADC and GPIO, it has Ethernet and 2 USB
ports. It also has 1.5 serial ports (one of them is read
only.

And yes, Linux runs on it.

http://www.nslu2-linux.org/wiki/
--
http://enerd.ws/robots/
D. Jay Newman

Oops, just noticed the USB requirement. Yes, the Gumstix folks are
taking their time over sorting USB host. It's in the pipeline
allegedly, but I'm not holding my breath.


Tim
--
You are being watched. This gives you power.

embededarm.com - pretty much everything you need.  You will need a
daughterboard or two.

http://embeddedarm.com   correct link

Any idea what the IO levels are ?

Found it in the manual
http://embeddedarm.com/Manuals/TS-7200_Rev1.3.htm#DIOHeader
3.3V source 4mA sink 8mA
not 5v tolerant.

Alex

Different parts of the board have different IO levels; 8 pins are 3.3V;
others are 5V.  You will need opto-isolators or similar in the real
world (but don't you always?) You can also get daughter boards with 5V DIO.

I have one in hand and am building the power supply as we speak.  Nice
unit, tiny, but I have a bunch of work to do before I start playing with
it - need to build a DIN rail mount for it, etc.

Why running Linux? Takes up a lot of room and adds a layer of
complexity.

Just program the board most embedded systems don't have an  RTOS anyway.

--
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
\/\/\/\/\ Chris Hills  Staffs  England     /\/\/\/\/
/\/\/ chris@phaedsys.org      www.phaedsys.org \/\/\
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/

How about the VCMA9? http://www.mpl.ch/t2730.html

I've used them, although with Nucleus rather than Linux, and they seem quite
good.
--
Dave
mail da ve@llondel.org (without the space)
http://www.llondel.org/
So many gadgets, so little time...

You mean uclinux or linux ?
How much do you want to spend  ?

Usb host or just usb for programming / or usb to serial ?

www.gumstix.com as others have said.

Otherwise uclinux especially with arm7

Maybe one of the many  lpc2xxx based boards

www.olimex.com/dev   makes a few but not with all the features you want
buy from sparkfun.com as can order online without faxing credit card details

http://www.olimex.com/dev/lpc-e2294.html

http://www.olimex.com/dev/cs-e9301.html    this one may meet your
requirements
when its available


http://www.thearmpatch.com/lpc-sbc2.html


Blackfin stamp US$169
500MHz BF533, 128MB sdram , 4MB flash , 10/100 ethernet
but no usb
http://www.analog.com/en/epHSProd/0,,BF533-STAMP,00.html
buy from digikey
http://docs.blackfin.uclinux.org/doku.php?id=buy_stuff

http://www.blackfin.uclinux.org/
http://blackfin.org/


http://www.revely.com/RMS100/AboutRMS100.htm
no ethernet (could use an edtp.com packet whacker)
download gcc port and app notes etc from sharp
need a free login for the gcc port
http://www.sharpsma.com/part.php?PartID 7

Alex

For full linux

Etrax from Axis  http://developer.axis.com
More recent chips can run a default 2.6  linux kernel

 The ETRAX 100LX Multi Chip Module includes the ETRAX 100LX SoC plus 4 MB
Flash, 16 MB SDRAM, Ethernet Transceiver, etc. This chip is ideal for
Ethernet-connected Linux systems.
http://developer.axis.com/doc/hardware/mcm/4+16/MCM_datasheet.htm
http://developer.axis.com/products/etrax100lx/index.html

a.. 4 asynchronous serial ports
a.. 2 synchronous serial ports
a.. 2 USB ports Host 1.1
a.. 2 Parallel ports
a.. 4 ATA (IDE) ports
a.. 2 Narrow SCSI ports (or 1 Wide)

http://developer.axis.com/doc/index.html
http://developer.axis.com/products/etrax100lx/18354_etrax_lx.pdf
http://developer.axis.com/doc/hardware/mcm/4+16/MCM_datasheet.htm

http://www.acmesystems.it/    A nice small board , and its 5V tolerant

Alex

I had a look at axis a little while back but I couldn't find any info on
the MIPS rating. Also I found that the 10/100 Ethernet is slugged to a max
2 (or 2.5) MB/s. Somthing to do with the USB interface.


Regards
Sergio Masci

http://www.xcprod.com/titan/XCSB  - optimising PIC compiler
FREE for personal non-commercial use



.

Which etrax chip ?

There is a whole range since 1993
http://developer.axis.com/products/etrax100lx/etrax_history.html

The 100LXsupports 100Mbs full duplex

They are used by Axis in their surveillance cameras
one of their boxes has an etrax 100LX + TI DM642 +  camera chip.


Also if the ethernet wasn't up to scratch , why would the chip get used in
routers , network cameras , nas boxes etc ?

http://www.amsstorage.com/html/dakotarom-sp_specifications.html
http://www.canon.com.au/products/multimedia/webview_webcasting_solutions/vbc10_ptz%20camera.html
http://www.linuxdevices.com/products/PD3724998087.html
http://www.elphel.com/model313/index.html
http://www.elphel.com/3fhlo/index.html

Alex
Elphel do seem to use broadcom ethernet on their cameras

On Sat, 17 Sep 2005, Alex Gibson wrote:


I didn't make a note at the time and now that I've gone back to check, the
docs look different so I cannot say with any certainty. It was
the one used on the Axis product.

Previously I saw no mention of seperate ethernet connections now I see
that there is mention of a primary and secondary connection one going
through an internal USB port and limited to 12MBit/s. Quote "Actual
routing speed is ~XX MBit between the two interfaces"


You tell me. Why do some NIC's perform MUCH better than others even though
they are all spec'd at 100MB?

Just because the hardware can pump out a packet at 100MBit doesn't meen it
can sustain 100MBit throughput continuously.


http://www.canon.com.au/products/multimedia/webview_webcasting_solutions/vbc10_ptz%20camera.html

I must admit that when I first looked at the Axis docs I did not like what
I saw and I felt it was possibly overhyped overpriced hardware jumping on
the Linux bandwagon. I felt it was safer for me to alert people to a
potential problem and for these same people to then check for themselves
BEFORE buying the kit, than for them to buy the kit and find out AFTER the
event that there was a problem.

Anyway thanks to your posting I will give this Linux on a chip thing much
more scrutiny before dismissing it again :-)

Regards
Sergio Masci

http://www.xcprod.com/titan/XCSB  - optimising PIC compiler
FREE for personal non-commercial use



.

Try this:

http://www.logicpd.com/eps/som/sharp/LH79524/

There is a free 2.6.x linux port as well.  goto
http://www.sharpmcu.com . You can sign up for their freely available
software library and it should be in there.

-Z

Sergio Masci wrote:

http://www.canon.com.au/products/multimedia/webview_webcasting_solutions/vbc10_ptz%20camera.html

Oh ya...this is based on the LH79524 with a 77MHz ARM720T with ENET
MAC, USB, ADC, RTC, GPIO, etc.  There is a LCDC but if you don't need
it, it's nearly free and leaves you with extra GPIO.  There is a 16-bit
data-bus version as well that may be easier to handle cause its a QFP
rather than BGA.  The QFP version is the LH79525.

www.cogcomp.com :    CSB637
www.mechatronicbrick.dk could do the job with the right motherboard.

Both have Ethernet, USB Host + Client, 2 UARTs (chips got 4)
SPI, I2C , GPIO, RTC. No ADC on the mech'brick AFAIK.

--
A. P. Richelieu

"Don Gravos" <aaaa> skrev i meddelandet

www.embeddedarm.com looks good too.


"A. P. Richelieu" wrote: