I'm not dead, just demoralized

Ok, I haven't been writing anything for like three months.

The reason being the problems I had with the A/D-converter. There is still a lot of jitter on the lines which sometimes causes a parameter to constantly switch between two adjacent values.

DCO1 module tested with LPC2103

I decided to skip finishing the mother board before testing the DCO1 module with the LPC2103 development board. Instead, I tried to connect the DCO1 board directly to the LPC-P2103 board and assumed it would be placed at the lowest address so I wouldn't need the mother board to address the module specifically.

Added LCD connector to DCO1 board

Just a small update on the Matrix 1000 editor and some thoughts.

I realized I need a way to test how I should handle LCDs. Either I'd put an LCD on a new module, since I am thinking of putting two together to test the "motherboard" addressing somewhat properly.
However, lazyness got the better of me and I decided to just add it to the DCO1-board even though I am not planning to include an LCD on that board. Anyway, it will be used for testing only so I guess it's OK. I had a couple of free addresses on the board.

Here's a couple of photos of the DCO1 board in its current state:

Begun editor prototype "light" motherboard

I started building the motherboard for the matrix 1000 editor today. I had the basic schematics done since a while back and have also been fiddling with the stripboard layout using LochMaster.
As I won't be building the full editor using strip boards there is no need for a full motherboard able to handle all the different editor modules.
I figure two modules will do for testing purposes so that is what I am going to support on this board.

Here's a photo of what it looks like so far:

Not much to hang in the Christmas-tree as we say, but it's a start.

Mux and buttons on Matrix editor DCO board

Just a little progress report on the Matrix Editor.
I finally manage to gather energy to solder wires on to two potentiometers so I could test the functionality of the analog multiplexer.
I also tested the buttons using the little "button board" I had made earlier.

And, what do you know... It worked!


Yes, I know. My keyboard... Try to ignore it.

Matrix 1000 Hardware Controller

So, if you read my description about my Oberheim Matrix-1000 you partly know why I am doing this. Well, it's not only because of the editing possibilities...