AVR-Chat

I am looking for a board that I can use to connect a home data logging project
to the Internet (10/100-Base-T).  I would like to support a web server function
as well as sending email (periodic reporting data) and receive email (receive
parameters, uploads, etc.).


Some basic requirements I've established:

1) Resident protocol stack (i.e.: software provided with the board such as
EtherNut) that supports TCP/IP, HTTP (web server), SMPT, POP3

2) AVR based

3) JTAG desired

4) "headroom" on the board, both in program and data address spaces to allow for
future enhancement

5) RS-232 and/or RS-485 support

6) Other peripheral support (ADC, Digital, 2-wire, etc.) a plus.  The more
flexible the better.

7) I'm looking for an assembled board with protocol stack support that I can
compile (gcc preferred but I'll convert it if required).  I'd like to build a
board myself but my project timeframe will not accommodate it.


I have a basic understanding of sending email (SMTP) and receiving email (POP3).
As I understand it I can perform both of these functions using Telnet type
support but it would be preferable to have library support for sending/receiving
email.

Some boards I've come across:
	http://tinyurl.com/74b6f
	http://www.achatz.nl/ 

Anyone have experience with these?  Are there others I should look at?

Thanks in advance for your help.

Cheers,

Chuck Hackett
"Good judgment comes from experience, experience comes from bad judgment"
7.5" gauge Union Pacific Northern (4-8-4) 844
http://www.whitetrout.net/Chuck

On Jan 21, 2006, at 11:34 AM, Chuck Hackett wrote:

> Some boards I've come across:
> 	http://tinyurl.com/74b6f
> 	http://www.achatz.nl/

http://www.edtp.com/

--
David Kelly N4HHE, dkelly@HiWAAY.net
========================================================================
Whom computers would destroy, they must first drive mad.

> From: David Kelly
> 
> On Jan 21, 2006, at 11:34 AM, Chuck Hackett wrote:
> 
> > Some boards I've come across:
> > 	http://tinyurl.com/74b6f
> > 	http://www.achatz.nl/
> 
> http://www.edtp.com/

Ah yes, forgot to list EDTP.  Problem is that, as far as I know, their AVR
boards are based on the ATMega16 and have limited data space for the buffers I
think I'll need and I don't think there is a port of EtherNut (which is the
stack I'm leaning towards at the moment) for it.

Cheers,

Chuck Hackett
"Good judgment comes from experience, experience comes from bad judgment"
7.5" gauge Union Pacific Northern (4-8-4) 844
http://www.whitetrout.net/Chuck

If you've already looked at the Ethernut, why look further ?


Chuck Hackett wrote:

> I am looking for a board that I can use to connect a home data logging project
> to the Internet (10/100-Base-T).  
 > <snip>

On Jan 21, 2006, at 2:23 PM, Chuck Hackett wrote:

>> From: David Kellytz.nl/
>>
>> http://www.edtp.com/
>
> Ah yes, forgot to list EDTP.  Problem is that, as far as I know,  
> their AVR
> boards are based on the ATMega16 and have limited data space for  
> the buffers I
> think I'll need and I don't think there is a port of EtherNut  
> (which is the
> stack I'm leaning towards at the moment) for it.

You could glue a Packet Whacker or Frame Thrower to most anything.

Fred now has a WiFi board with ATmega128L. Its not cheap, but  
reasonable.

As for the EDTP hardware, EtherNut, and most all microcontroller TCP/ 
IP stacks, the hardware is almost the same. Typically all jump thru  
the same hurdles to use an ISA-bus ethernet chip on MCU I/O ports.

Lacking an Atmel solution I'm using a Freescale MC9S12NE64 for a  
project. Project isn't shipping yet but Freescale has recently tagged  
the NE64 as "Not recommended for new designs." Likely to be available  
for years. I really liked the notion of Microchip's ENC28J60 but its  
been about 6 months too slow to market. And now its here its just a  
tad pricey (which is also why I use AVRs rather than PICs).

With any luck the NE64 will get me by long enough for the Atmel  
AT91SAM7X256/128 to reach market.

--
David Kelly N4HHE, dkelly@HiWAAY.net
========================================================================
Whom computers would destroy, they must first drive mad.

> From: Jesper Hansen
> 
> If you've already looked at the Ethernut, why look further ?
> 
> Chuck Hackett wrote:
> > I am looking for a board that I can use to connect a home data logging
> > project to the Internet (10/100-Base-T).
>  > <snip>

I take it that you're recommending the Ethernut Hardware (sold in the US by
MCPros http://tinyurl.com/74b6f) or were you speaking about the Ethernut OS and
TCP/IP stack?

At this point the board seems to best meet my needs.

Cheers,

Chuck Hackett
"Good judgment comes from experience, experience comes from bad judgment"
7.5" gauge Union Pacific Northern (4-8-4) 844
http://www.whitetrout.net/Chuck