RE: [Embedlets-dev] Light Blinker update and uVM serial multidrop network

[James C. <ca...@vi...>]

Hi!

Well.. Here I am at PICMASTERS and might I say it has been a very very
VERY interesting conference for me.

I won't say much more just yet but for those who have been following the
development of the thinking behind my business model.. Well it's looking
good with microchip at this (early) stage ;-)

RS232 Multi-drop for uVM.. 

Great news on this front also.. I demo'd WebServices here at PICMASTERS
for microchip where I showed Remote Mothod Invocation (RMI) from a .NET
Visual Studio C# application to uVM devices over SLIP and discussed the
advantages of the serial multi-drop concept over slip and the advantages
of serial slip from a ethernet/ppp hub. Well this and other technology I
introduced them to has left some people from microchip 'breathless'..
Lots' more to come on this.

So yes.. I am on it on a priority basis anyhow because it looks like I
am doing a full presentation and workshop with microchip in the coming
weeks and demonstrating this 'daisy chaining' webservice connected uVM
devices is high on the list. The one piece of work to get it running on
the JSTamp though is I need to reproduce the '.NET remoting
infrastructure' ie that diagram I produced on the SLIP/JAPL
infrastructure is actually the same sort of thing as the .NET
infrastructure.. I am very keen though to demonstrated platform
independence of the HOST though and have already started on this... So
the answer is yes. Will happen sooner than later.

So much to say..! Stay tuned..

James Caska
www.muvium.com
uVM - 'Java Bred for Embedded'

P.S  Thanks for the comments on the Technology Evaluation Guide.. It was
quite an effort to put all those concepts into a digestable form.


-----Original Message-----
From: emb...@li...
[mailto:emb...@li...] On Behalf Of
Ted Kosan
Sent: Thursday, 17 July 2003 7:27 AM
To: emb...@li...
Subject: [Embedlets-dev] Light Blinker update and uVM serial multidrop
network


Topic tags:[ARCH][JAPL][WIRING][DOCS][MGMT][STRATEGY][NEWBIE]
_______________________________________________

I submitted the Global Light Blinker proposal to the JXTA community and
the feedback that I received on the idea was all +1s so I have been
moving ahead with developing the software.

The next step in the process is to submit the project idea for formal
approval and I will do this as soon as I have a working demonstration.

The demonstration application is currently 90% functional and the main
thing that is preventing 100% functionality is a method in the JXTA core
libraries that has not been implemented yet.  I have been using the JXTA
lists in order to resolve this issue as soon as possible.

In the meantime, I am now ready to start working on the reference
implementation hardware design.



James,

Do you happen to have a diagram of your RS232 serial line multidrop
design?  My initial plan was to go with 1-Wire for the reference
hardware but I am very reluctant to deal with Dallas Semiconductor
directly to obtain serial-to-1Wire converters (DS9097Us) and it looks
like we are about 3 months away from having a second source for an
equivalent serial-to-1Wire board.

uVMs using your RS232 multidrop idea seem to be an excellent non-1Wire
based solution to the problem and so I would like to proceed with this
strategy


Ted

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