SX-ethernet/network

Kiwi

hello,

Is there a module that connects the sx28 with the use of an ethernet port to the Internet?

I saw there is a board for the sx52 avaible, but is there a module for the sx28?

Kurt

Stephen

Not that I know of... The SX28 simply didn't have enough memory for the protocol stack. In addition, it's small amount of RAM meant only up to ~100byte packets could be sent, which was decided to be just too small.

Paul Baker

There are actually a plethora of modules which can provide IP functionality to an SX. www.sparkfun.com > Breakout Boards has three such modules.

Stephen

Sure, it may be possible to get the hardware together, but the software needs to be hacked quite a bit to fit in the SX28...

Paul Baker

The CS8900A based interfaces do much of the software work for you, though its interface isn't the easiest. The SitePlayer Telnet performs _all_ of the TCP/IP handling for you and provides a simple serial interface for a microcontroller to interact with the ethernet.

Post Edited (Paul Baker) : 7/13/2005 12:53:12 PM GMT

Stephen

Ahh... I missed the module part. I was referring to actually connecting an SX28 to the internet via just an ethernet controller only. It might still be possible using some of the CS8900's RAM. Still 2K is just not enough for holding a useful TCP/IP stack...

I would say a module would be the only way, in which case they are probably several vendors.

BTW, just a fun bit of trivia... Scenix even once made an internal demo that had an SX28 bit-banging ethernet on an SX28. It worked, but needed to be run at 100MHz @ 6V (+/-1% max!). It had a huge heatsink that was still burning hot!

Ryan Clarke

We have had a number of threads dealing with embedded ethernet....

What did you have in mind?

Ryan

Kiwi

it is nice to see some goog reactions on my question.

The purpose of the Ethernet module is that i can send and receive some 8 or 16 bits data from/to the sx28 with the use of Telnet software.

I wrote a program (not tunned up), with the use of VP lib, and datasheet of the ds1620, to simply read out the temp of a tempsensor and sent it to a serial display and to a laptop.

So when i am not home i am still want to check the temp in my greenhouse, and switch on some cooling, or do some other stuff.

Kurt