I hope that this is possible...
Well, i managed to get EhBasic working fine on my sbc, and since i bought the eeprom that is 32k and i use only 16k, i made a switch for enabling me to have 2 systems on my sbc...
On the first part i have EhBasic running , and i would like to have something that has web access also. I've been looking to 8BIT's web server, and how it works. Now first thing i would have to figure out how to compile something with cc65(didn't have much luck here), and after that compile some kind of small os that enables web interface. Of course i will need a ethernet module of some kind, and i have no idea how to make it. Also i am buying some XC9536 cpld's, so they might be useful... Also when i finish my 68000 sbc, i would like to have something similar there too...

(Btw, why only Programmable Logic has polls?)

Try this page.

Lee.

This is a fairly easy way to get TCP connectivity: the Arduino Ethernet shield. It is based on the WIZnet ethernet chip, which already provides the TCP/IP stack.

Well, i would prefer the W5100, but i see 2 problems. First the chip is smd, and i would need to make it so that it can be soldered on my trough hole boards(if possible without using Arduino bosards)... And second i would need to manage somehow 16k of that address space, i would like to shrink it somehow down to 1k(1k is how much i left for every I/O expansion slot). Also a software would be needed...

Well, i have looked at the datasheet and i have no idea how to make this work. You could say i really don't know much when it comes to networks/web...
And what about ENC28J60?

8BIT's solution for his sbc-3 looks very attractive: http://sbc.rictor.org/io/eth.html .

Thanks for the comments. I can tell you that TCP/IP and web services are not easy and require a lot of time to research and develop code that is compact and efficient.

The uIP suite created by Adam Dunkels is well documented but requires a C compiler targeted to your hardware. Getting CC65 targeted to my SBC was a major undertaking and took a few months to complete.

I will say the ENC28J60's are nice and you can bit-bang the SPI interface. Bit-banging will be less efficient in terms of speed, but can be made functional.

Good luck!!!

Daryl

As first goal, i would like to be able to send/receive data packets.

A good first step would be to test for incoming ICMP (ping) requests and provide a ICMP response.

Here's a good primer on networking in general
http://docwiki.cisco.com/wiki/Internetw ... _Protocols

A list of RFC covering many networking protocols can be found here:
http://www.rfc-editor.org/rfcxx00.html

RFC 792 describes the ICMP protocol
http://www.rfc-editor.org/rfc/rfc792.txt

Of course, there are a plethora of sites and information on the Net that can also provide the information you will need.

Daryl

What about Andre's Gecko os?

Thanks for mentioning it :-)

Yes, that would be a possibility. However, the GeckOS TCP/IP stack is far from what I'd call production quality.

Even I have resorted to using uIP for new designs, although not integrated into the OS like my own stack (but that may come).

André

It would be nice to have something that can be set up easily on any sbc like EhBasic...

I've found this: http://www.ebay.com/itm/RS232-serial-TT ... 3f0d4b71fe

It looks quite simple, so now i am interested how useful it really is.
Could a small web server be made using this device(and the sbc of course).

I doubt it. It looks like will get something like a telnet port on the ethernet side onto a serial interface to the host.
Of course, telnet is basically what is TCP, so you can telnet to an HTTP port to download a web page, but I am not sure if it works the other way round.

Especially I am not sure how that would fit with with multiple requests at the same time.

André

You know, I think it might be able to work as a server. The datasheet shows four modes of operation: server and client, udp and tcp. It indicates handling multiple clients when acting as a server. It isn't completely clear how it handles simultaneous clients though, and the configuration table only shows values for setting up 3 of the 4 modes.

There's a more shop-like site here - it's a $29 circuit board module with a 0.1-inch pitch interface and an ARM on board to handle the protocol stack. The serial side isn't handling packets, but a data stream.

Because the datasheet is rudimentary, there's a bit of a risk as to whether or not it can be made to act as a small-scale web server. It's obviously meant for multiplexing simple serial streams, or interrogating remote instruments.