Hi everybody,
Several years ago I was working in a very cheap device that allowed any MSX Computer to work as a IBM PS/2 Keyboard using an the MSX Printer Port, the 16F684 PIC microcontroller and two simple programs , one for the PIC and one for the MSX Computer.
I've just seen a discussion in a thread about why not use our fantastic MSX Keyboards, to control another different machines; I think that is a great idea, and I think that my development could be of some use for this porpoise.
Unfortunately the original designs and programs are missing. But I still have the schematics for the 'next step' on this 'interface' , that was intended to simulate a USB Keyboard, using the MSX Computer through the printer port , and another PIC microcontroller, PIC18F4550.
The schematics are:
https://www.dropbox.com/s/wgv3szxa9anxkcx/MSXLPTUSB.jpg?dl=0
And the Board:
https://www.dropbox.com/s/9xr0o17ymxh5wig/MSXLPTUSBBOARD.jpg...
*** WARNING *** This schematics required specific Software in both MSX and PIC sides *** WARNING ***
I am still looking for the software, that I'll upload as soon as I find it.
Write you soon,
Miguel.