On Feb 7, 9:15 pm, Franc Zabkar <fzab...@iinternode.on.net> wrote:
On Sun, 7 Feb 2010 18:05:02 -0800 (PST), Zephinilium
platt.e...@gmail.com> put finger to keyboard and composed:
On Feb 7, 5:24 pm, Franc Zabkar <fzab...@iinternode.on.net> wrote:
On Sun, 7 Feb 2010 15:47:40 -0800 (PST), Zephinilium
platt.e...@gmail.com> put finger to keyboard and composed:
On Feb 7, 3:29 pm, Franc Zabkar <fzab...@iinternode.on.net> wrote:
On Sun, 7 Feb 2010 14:01:37 -0800 (PST), Zephinilium
platt.e...@gmail.com> put finger to keyboard and composed:
I have this pc board out of a keyboard made by Think! Software. I
don't have any cables or information on it. I just want to use the
MIDI keyboard function, so need to hook up power to the pc board..
Couldn't find pinouts anywhere for the main chip. You can see it
here:
http://www.macdood.com/electronics/keyboard_pcbrd_33p.jpg
Thanks
It's an 80C51 uC with 4K x8 mask ROM.
This is a Philips version:http://ecee.colorado.edu/~mcclurel/p8051ds.pdf
BTW, the "J1" connector on the left in the photo is for a foot switch,
not a power connector. I think I read somewhere that it gets power
from the computer connection (P2).
This should help.
PC Gameport+MIDI pinout:
http://pinouts.ru/Inputs/GameportPCMidi_pinout.shtml
I'll take that information into account. Thanks.
BTW I don't know if you noticed, but it has a dedicated MIDI port
already. Here are the ports, if it clarifies the situation any:
http://www.macdood.com/electronics/keyboard_ports_33p.jpg
-ECP
I don't understand the need for the microcontroller, but then I'm not
a musician.
FYI, here is a MIDI kit:http://www.siliconchip.com.au/cms/A_101116/printArticle.html
http://us1.webpublications.com.au/static/images/articles/i1011/101116.......
I use the abovementioned kit to connect an old soundcard to an old
Radioshack keyboard.
- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.
That's cool, but I'm using Macs, and have a MIDI to USB adapter
already.
Hooked up a power supply to GND and pin 8. Didn't work. Dont' know if
resister R2. What is the value of R2? It says "472" on it. Is that
