A real engineer (or programmer) can pick up the manual and work with
whatever the manager-dorks picked for whatever reasons they did it.

When he (occasionally she, but unfortunately rarely) has the opportunity, he
will match the processor to the application and use the one that fits best.

The really hard factors in the decision are not on the spec sheet.  Like,
how much it will really cost for 10,000 of them, and how long it will take
to get them.

Microchip has a fairly broad line, good support, and relatively low-cost
emulators and programmers.  Almost all their parts are stocked at Digikey,
so you can get modest quantities overnight, and they are seldom out of
stock.  If you need quantities, there are distributors, and the factory will
start talking to you directly for a few tens of thousands of units.  This is
not the case for many suppliers.

Don't even dare to think of wasting your employer's money building
emulators.  If you know enough to ask these questions, then your time is
worth way more than what it would cost for them to pay you to reinvent as
basic but tricky a wheel as a PIC emulator.  If you decide to use a PIC,
look in the Digikey catalog, send them a couple thousand dollars and in 3
days you will be hard at work on the real project.  How long will you have
to work on a homemade emulator to burn through $2K (don't forget that you
cost your employer substantially more than just your wages)?  How much will
it cost to delay the project by a couple of months while you fiddle with
your emulator?

> -----Original Message-----
> From: pic list [mailto:piclistpang@YAHOO.COM]
> Sent: Wednesday, August 08, 2001 9:01 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: [PIC]:Recommendation of uC, which is better?
>
>
> Hi all,
>
> I need some recommendation on the type of PIC that i
> could use. Please read on.
> I have wrote some assembly for 68HC11 and studied
> on the architecture of Motorolla 68K. I find both of
> them complicated, which is why i choose pic16F84 to
> use in my final year project. and i never regreted my
> decision.
>
> 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. Do any
> PICListers think this is possible? or maybe possible
> up to a certain extent?
>
> Obviously i need a faster uC ( > 20MHz ), larger
> memory, and more i/o pins. i would want to use this uC
> in most of my solution except when the solution needed
> me to have built  in modules like the Ethernet module
> ( Motorolla Coldfire ).
>
> I hope everyone would give me their evaluation, the
> final recommendation may not necessary be pic. Maybe i
> should stick to Motorolla, or Scenix ? What constitute
> a good engineer? Expert on many types of uC OR Master
> of one or two type of uC? Thanks for any advice given.
>
>
> __________________________________________________
> Do You Yahoo!?
> Make international calls for as low as $.04/minute with
> Yahoo! Messenger
> http://phonecard.yahoo.com/
>
> --
> http://www.piclist.com#nomail Going offline? Don't AutoReply us!
> email listserv@mitvma.mit.edu with SET PICList DIGEST in the body
>
>

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu