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Discussion Groups | BasicX | midi application

Discussion forum for the BasicX family of microcontroller chips.

midi application - Louis Klepner - Feb 4 15:19:00 2000

Hello-

Is the basicX24 chip capable of recieving midi data? I have no experience
with stamps at all, but I have been told that there is a problem receiving
midi data, without the aid of a a buffer.

I would like to send midi data to the board, using some of it to switch
outputs, and also triggering a DVD player by outputing serial data. Does
this seem possible? Thanks in advance for the help.

-Louis Klepner http://www.expressiveimaging.com





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RE: midi application - Ethington, Russ A - Feb 4 16:33:00 2000

Been working on a MIDI controller myself. Here's what I've run into: MIDI
data has to transmit at 31250bps +/-1%, but the BX-01 board (clocked at
7.xxxxx MHz) cannot hit that baud rate (it's off by almost 2%, beyond the
MIDI tolerance).

So, Jack at NetMedia suggested that I clock the CPU at 8.00MHz to fine tune
that baud rate to exactly 31250. I just got my 8MHz crystal so I'll try it
over the weekend and let you know how that goes.

-r

> -----Original Message-----
> From: Louis Klepner [SMTP:]
> Sent: Friday, February 04, 2000 3:20 PM
> To:
> Subject: [BasicX] midi application
>
> From: "Louis Klepner" <>
>
> Hello-
>
> Is the basicX24 chip capable of recieving midi data? I have no experience
> with stamps at all, but I have been told that there is a problem receiving
> midi data, without the aid of a a buffer.
>
> I would like to send midi data to the board, using some of it to switch
> outputs, and also triggering a DVD player by outputing serial data. Does
> this seem possible? Thanks in advance for the help.
>
> -Louis Klepner > http://www.expressiveimaging.com
>
> --------------------------- ONElist Sponsor ----------------------------
>
> Love. Relationships? E - Commerce!
> <a href=" http://clickme.onelist.com/ad/SparksValentine1 ">Click Here</a>
>
> ------------------------------------------------------------------------



______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.


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Re: midi application - Jim Cook - Feb 4 18:03:00 2000

Please post your results, Russ. I'm also interested in MIDI applications.
I'd like to roll my own "knob controller" for my Yamaha QY-70 sequencer.

It's a shame this can't be done without driving the clock higher than the
NetMedia will permit to honor the warranty. Seems to me that a little
tweaking of the OS would be all that's needed to be able to set a 31250 baud
rate. I realize this is "non-standard" but it's been used for almost twenty
years now as the MIDI baud rate.

Jim Cook

----- Original Message -----
From: Ethington, Russ A <>
To: <>
Sent: Friday, February 04, 2000 1:33 PM
Subject: RE: [BasicX] midi application > From: "Ethington, Russ A" <>
>
> Been working on a MIDI controller myself. Here's what I've run into: MIDI
> data has to transmit at 31250bps +/-1%, but the BX-01 board (clocked at
> 7.xxxxx MHz) cannot hit that baud rate (it's off by almost 2%, beyond the
> MIDI tolerance).
>
> So, Jack at NetMedia suggested that I clock the CPU at 8.00MHz to fine
tune
> that baud rate to exactly 31250. I just got my 8MHz crystal so I'll try it
> over the weekend and let you know how that goes.
>
> -r
>
> > -----Original Message-----
> > From: Louis Klepner [SMTP:]
> > Sent: Friday, February 04, 2000 3:20 PM
> > To:
> > Subject: [BasicX] midi application
> >
> > From: "Louis Klepner" <>
> >
> > Hello-
> >
> > Is the basicX24 chip capable of recieving midi data? I have no
experience
> > with stamps at all, but I have been told that there is a problem
receiving
> > midi data, without the aid of a a buffer.
> >
> > I would like to send midi data to the board, using some of it to switch
> > outputs, and also triggering a DVD player by outputing serial data. Does
> > this seem possible? Thanks in advance for the help.
> >
> > -Louis Klepner
> >
> >
> > http://www.expressiveimaging.com
> >
> > --------------------------- ONElist Sponsor ----------------------------
> >
> > Love. Relationships? E - Commerce!
> > <a href=" http://clickme.onelist.com/ad/SparksValentine1 ">Click
Here</a>
> >
> > ------------------------------------------------------------------------
> >
>
> --------------------------- ONElist Sponsor ----------------------------
>
> eGroups' Valentine's Day Gift Guide - Shop Here Now:
> <a href=" http://clickme.onelist.com/ad/SparksValentine4 ">Click Here</a>
>
> ------------------------------------------------------------------------




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