Version 2 - Inverted Logic

This release inverts the logic level needed to trigger the switching: now you need to bring the SWAP pin to GROUND.

This was done to make it simpler to trigger OpenAmigaDriveSwitcher from OpenAmigaMouseTrigger, which can now be used straight away.

THIS RELEASE IS UNTESTED - USE AT YOUR OWN RISK!

Support

The released gerber files are password-protected. The original reason behind my projects was to allow anyone to make their own retrocomputing accessories cheaply. Instead of this, what I achieved was actually fuelling greedy people grabbing my work, making boards for a couple of bucks and the selling them at outrageous prices ($15 for a badly-soldered OpenC64Cart that costs $2 to make is just ridiculous).

I still believe in free software and open hardware, and that is why my projects will remain as such. I am no longer providing ready-to-use gerber files, but you can still generate them from the KiCad project or ask me for the password, if you think you don't fit the above statement.

Note that you are allowed to sell these boards, I have nothing against that as long as you do so at an "ethical" price. This is why I am adding the following restriction (inspired by DiagROM): if this board is sold at more than 5€ + production and component costs, 25% MUST be donated to a LEGITIMATE charity of some kind, like curing cancer for example.

Version 1

This is the first release of this project. PCBs have been produced and successfully tested on A500 and A2000 computers.

To trigger the switching you need to bring the SWAP pin to a logic HIGH level. This means that if you want to do it from OpenAmigaMouseTrigger, you will need to hack it a bit:

• If you are using channel 1, bend pin 9 of the 74LS74 chip so that it doesn't plug into the socket and solder pins 8 and 9 of the socket together on the bottom side of the board.
• If you are using channel 2, bend pin 5 and solder pins 5 and 6.

This will bring the Q' output to the O1/O2 pads, instead of Q and it is necessary since the mouse/joystick button signals are normally HIGH and become LOW when pressed.

Support

The released gerber files are password-protected. The original reason behind my projects was to allow anyone to make their own retrocomputing accessories cheaply. Instead of this, what I achieved was actually fuelling greedy people grabbing my work, making boards for a couple of bucks and the selling them at outrageous prices ($15 for a badly-soldered OpenC64Cart that costs $2 to make is just ridiculous).

I still believe in free software and open hardware, and that is why my projects will remain as such. I am no longer providing ready-to-use gerber files, but you can still generate them from the KiCad project or ask me for the password, if you think you don't fit the above statement.

Note that you are allowed to sell these boards, I have nothing against that as long as you do so at an "ethical" price. This is why I am adding the following restriction (inspired by DiagROM): if this board is sold at more than 5€ + production and component costs, 25% MUST be donated to a LEGITIMATE charity of some kind, like curing cancer for example.