[sdiy] MIDI Sequencer using AVR ?

[patchell]

    This would be mostly a "software" project.  The hardest part is going to be
trying to decide how big of a part you are going to need.  You might need to
use the AtMega part, rather than the regular AVR.

    What you will have to do is locate some midi sequencer code, if it is
written in "C", it probably doesn't matter which platform it was written for.
In fact, I have a midi sequencer written in K&R C for the Atari ST on my
website.  Goto http://www.silcom.com/~patchell/tx816/tx816.html, there is an
archive or source code there.  I can't remember the name of the sequencer file,
but I think it is obvious...  Once you have some code, you should be able to
estimate how much program memory and data memory you will need, then double it,
and look for that part.

    The other things you will have to do is make a user interface...I can't
help you much there.  If you get the AVR eval kit, the board has buttons, led's
and an LCD display port, so you can play around.

    Sorry I can't be of much more help, but it sounds like a fun project.

Doug Forbes wrote:

> Jim and all,
>
> I want to do a MIDI recorder that will record and playback short
> variable-length MIDI loops (<1000 or so poly note events) as opposed to a
> knob-box thingie.
>
> Doug
>
> >     What kind of sequencer are you planning on?
> >
> >     Do you want something that is going to look like a good old fashioned
> analog
> > sequencer, i.e. 16 knobs, that outputs midi, or, are you talking about
> something
> > that can record midi data and then spit it back out at a later time?
> >
> >     -Jim
> >
> > Doug Forbes wrote:
> >
> > > Howdy all you DIYers,
> > >
> > > Does anyone on the list know of, or has anyone posted a design for a
> MIDI
> > > sequencer based on the ATMEL AVR ? I am designing one for fun and would
> like
> > > to see anything that has gone before as a starting point.
> > >
> > > Thanks in advance.
> > >
> > > Doug Forbes
> >
> >

--
 -Jim
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