RE: Re: xAP and embedded devices

[Stuart Poulton <swp@xxxxxxx>]

Ian,

Some comments

> I would see my PIC devices as being on an RS485 network hanging off a = serial
> port somewhere, be it PC or other device. Something to translate betwe= en the
> two with more power would be fine. It would be good if xAP was strippe= d at
> this point and something like SNAP added for low power devices. You wo= uld
> not be able to say much with say 100 bytes including tags, addresses,<= BR> > commands, text etc.

Some discussion has already taken place regarding SNAP, and the general feeling is that gateway will be produced.

> If we went to a better generation of embedded chips then power would > increase but who has the time and money to develop the devices. I thin= k we
> should keep it do-able. After all this whole project is greatly reduce= d
> without the embedded devices.


> Thoughts anyone - particularly those with the knowledge to program the= more
> powerful chips. Out of interest, how much are these more powerful chip= s vs.
> the better features e.g. TCPIP stack etc.

I'm looking at this and currently Atmel looks like a strong contender with =
it's range of AVR chips that can be interfaced to a ethernet driver, code <= BR> and documentation already exists. I'm currently talking to the UK
suppliers about AtMel chips, and we are trying to track down RealTek chips =
at a reasonable cost, it's ok if we want 660 ethernet driver chips, cost is then about =A34 a chip, but this rises steeply for any smaller quantity.=

Hope this helps

Stuart

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