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[avr-gcc-list] coming back to avrgcc: some questions

From: Robert Rozman
Subject: [avr-gcc-list] coming back to avrgcc: some questions
Date: Tue, 19 Nov 2002 10:34:54 +0100


after quite some time I'm coming back to developing avrgcc applications for
Atmel Mega 103.

I've designed prototype of custom home automation system.

On top of home automation network there is main controller (based on small
microcontroller) with rs-232 interface that can be connected to PC. Now I
have several dillemas and would kindly ask for quick answers:

- what free rtos could be best at the moment for developing applications ?
Is AvrX the best solution ?

- are 3.2 compiler's applications and rtos stable enough for always-on
applications ?

- I'd need to implement some sort of home automation state machine, that
would implement event based commands and also main loop that would be
checked in regular time intervals whether there are any timed commands to be
released. Any idea, similar code, pointer to more info ?

- how to interface outside world to gain as much user freindliness for
configuration and control at low cost (preferably no cost) :
        1. one idea is to mimic some X10 two way controllers - but do they
have ability to implement
           also  time or event based macros. What engine could be used to
implement this ?
        2. using code from HCS project but I'm not sure if it is available
as open source and if it has
            configuration utility ?

- how to deal with dynamic objects ? Home network would be self
configurable, so controller needs to have separate objects for each group of
sensors, actuators and similar devices. How to cope with this most
efficiently ?

Thanks in advance for any help,


Robet Rozman

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