Perhaps someone with knowledge of the TOS ROMs could help me ?
Many years ago I fitted a TOS 2.06 upgrade board to my STfm.
Today I was looking through some old paperwork when I happened
upon the manual and fitting instructions.
The board is a Compo T_Board 64 that fits into a socket soldered
to the top of the 68000. The TOS 2.06 is activated by a small
program in the AUTO folder. When I switch on the ST it first
boots into TOS 1 then boots into TOS 2. I have it set-up so
that Superboot is activated before TOS 2. There is no hardware
switch with this board.
Looking at the back page of the installation instructions it says:
" If for some reason your original TOS has been removed from
your computer it is still possible to fit T_BOARD. Just connect
the solder point next to R1 on the T_BOARD to pin 20 of the
first socket which contained one of your original TOS ROMS. "
I suddenly had the idea of fitting this wire so that the ST
will boot directly into TOS 2. Would this work without
first removing the soldered in TOS 1 chip set ?
If this would work it would then be tempting to fit a switch
into this circuit so that I could break the connection and
boot into TOS 1 if I needed to (unlikely).
I have a Milan and don't use my ST much anymore but it would
be better to use if it could boot straight into TOS 2.