Embedded Operating System for newbies (long post; sorry)

From: Devyn (devyntt_at_yahoo.com)
Date: 02/29/04 

Date: 29 Feb 2004 07:59:23 -0800

Greetings Everybody!

 I am a final year EE student working on my final year project. The
aim of the project is to develop an embedded system that showcases
whatever i've learnt about microcontrollers and programming.

I've chosen a simple project to do so. I'm developing an "Embedded
Inventory Control". Considr a warehouse with components A,B and C.
Each in its own crate, they have differnt weights. So when 1 crate at
a time leaves the warehouse, i use a load cell and ADC to measure its
weight. Thus the stock of that component can be updated. When the
stock dips below a preset, the micro hooked up to a server triggers a
chain of events. The PC sends an email to the 'supplier' ordering more
components and an email/sms to the 'owner'. Meanwhile the owner can
also access the PC (through the internet) to find out the stock of
each component.

I know many of you will have rolled your eyes and said "there are
better ways to do this!", but please bear with my design. So far I've
used PIC16F877 and C programming. Since there are several functions
involved, i've used a multi-file program. I want to extend this
concept now to an OS level.

How do i write a code so that the 'feel' is of an OS using programs
rather than a program using functions? Any suggestions?

Regards,
Devyn

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