2) so...if I understood well, your project is for synchronisation between
MIDI Instruments and DJ Decks...But what I don't understand is who
delivers the reference clock, is it the decks or the musical instruments
???
OK - my device delivers the reference clock to the MIDI instruments. You
have to set the tempo yourself - as if you were mixing. The controls are
START/STOP, COARSE TEMPO, FINE TEMPO, ON/OFF so it's very easy to use.
4) a programmed logic device?
Thats correct - I will use a Xilinx 44 pin CPLD. The circuit is in my head
at the moment.
5) OK, but the cpld need to be programmed, so the people need to get a
programmed one from you? Did I understand you right?
OK I understand!! You can download the design from a PC using the printer
port. You need a special cable though ($95). My
idea is to build the cable into the circuit board and have a 25pin port on the
box. Was that clear?
I should say the download program for PC is a free 10Mb download from the
Xilinx website...
6) OK, and with this program, your own PLD-programmcode, the self-made
cable with one side printerport and other-side
interface to the PCB people can 'upload' the software into PLD? Right?
Thats right. I will arrange for the self made cable to be a
straight-through printer cable you can get from any PC store.
7) Will it be 'in-circuit-programmable' ?
Yes - it will be in-circuit-programmable, I have plans to have different
CPLD schematics to do different things - maybe beat lights and stuff.