> Now i am in the new job and the previous engineer in
> my
> company uses Motorolla uC(and he is very good at it).
> I need to  justify my choice of microcontroller by
> showing -
> 1. i can produce a solution in a similar or shorter
> time
> 2. i don't need expensive programmer and emulator
> 3. the uC/uP are cheaper than Mot. for a comparable
> speed, memory and function ( like A/D convt. )
>
> i don't mind building my own programmer or even
> emulator if these info are available freely.

You've stated you are doing this professionally where presumably time=money.
You'd be wasting far more time (money) trying to build the tools yourself
than just buying them.  The tools probably cost the company only about the
same as keeping you around for a few days.

> What constitute a good engineer?

A good engineer is one that does a good job of solving the problem.
Parameters like completion time, overall cost, ability to be adapted to
future needs variously factor in to "good job" depending on the particulars.
It is of course also part of your task to weigh these and make the best
possible tradeoffs for your employer.

> Expert on many types of uC OR Master
> of one or two type of uC?

This does not enter into being a good engineer or not, but does effect your
employability and suitability to future tasks.  In other words, these are
personal reasons for choosing a particular microcontroller (or any other
product).  It would be totally irresponsible for you recommend a particular
part only because you want to learn it or want to avoid learning another.

However, for a low volume product, there is nothing wrong with saying to
your boss "I'm already familiar with this micro which can do the job.  Since
we're only going to use a few of them it is cheaper to go with the ones I
already know than to pay for my time to learn the competing micros."


********************************************************************
Olin Lathrop, embedded systems consultant in Littleton Massachusetts
(978) 742-9014, olin@embedinc.com, http://www.embedinc.com

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