nativ wrote:alexh wrote:Which interface did it plug into? Cartridge port?
Not as far as I am aware? I am led to believe there's an expansion facility on the STe for a solderless board and a soldered mod for the FM? there must be at least fitting instructions around? or someone who has fitted one?!
That 'expansion port would mean the 68000 processor.
In ST's PC Speed (and AT Speed, AT Once, IDE hard disk interfaces, TOS 2.0 boards) are put in an IC socket soldered on the 68000.
In a lot of STe's the 68000 is a PLCC in a socket so you can remove the socket, place the PC emulator in the socket and re insert the 68000 in a socket on the emulator.
Putting your expansion on the processor has the big advantage you have control over the complete processor bus. At the same time this is an disadvantage. It is not a simple task to ad hardware here.
But why do you want to make the ST into something it is not? It would be far easier to write an ST emulator on the Raspberry Pi computer and make some extensions to the emulator so the emulated ST can use additional functions of the Raspberry Pi then to add the Raspberry Pi to the ST.
Hans Wessels