AVR-Chat

On Thu, 07 Dec 2006 12:36:06 -0800
 Ned Konz <ned@bike-nomad.com> wrote:
> Reza wrote:
> 
> > 2- In some cases, specially defining a serial port
> protocol, I need 
> > to use state machine, rather than using multi-task
> kernels. but 
> > defining and implementation of a state machine is a
> time consuming 
> > task. and when you want to change any logic you may
> need to review 
> > all work. is there any tools which could be customized
> to generate 
> > AVR assembly or C code in help of state machine design?
> 

I have a hard time imagaining that some sofware framework
could help very much to save time. You still have to define
the states, what occurs in each, and what the events are
that cause state transitions. I can't see how "tools" will
help you with any of that. 

I say that from experience of having built some fairly
complex  state machines on both 8051's and AVRs. Also, the
key, in my mind, to maintenence is "Comments". Comment,
comment, comment. Put descriptive headers with written
descriptions of your state machine in the source code.
 Describe what is supposed to happen in each state, what it
represents, and the logic behind the state transition
logic. The written description can take more lines than the
executed code, but its worth it a year later.

Jim

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