Time for new uP

[Jim Patchell]

    I picked the AT90S8515.  I believe most of the models have UART's.
The A/D's is another story.  You basically trade of memory expansion
capabilityes for A/D.  The 8515 part you can expand the DATA memory (not
program memory) externally.  The sister part, 8535, has 8 A/D channels,
but you cannot expand the DATA memory.  In the standard parts, this is a
trade off.  For the life of me, I cannot remember if the MEGA devices
have the same tradeoff.  But they are more expensive, and also, from
what I understand, even more unavailiable.

    Although, for hobby stuff, I don't generally consisder the
availiablilty issue as significant for uP, since, in any home project,
the number of micros needed is generally pretty small.  If you plan on
selling the thing....well, that is another ball of wax.

    -Jim

BrightBoy wrote:

> So which AVR model is best suited for MIDI, meaning it has a
> built in UART????
>
> Do any have 8 channel A/D conveters like the PIC????
>
> Cheers,
>
> Jeff R. Dec