TU58 tape formatter (was Re: rebuilding DC100A cartridges?)

[Ethan Dicks]

On Sat, Nov 24, 2012 at 4:08 AM Eric Smith <eric at brouhaha.com> wrote:
> > It is remotely possible that there's an undocumented "format" command
> > in the protocol.  However, I've heard multiple people claim that
> > special firmware was required.
>
> I spent some time reverse-engineering the firmware.  There is only one
> undocumented opcode, decimal 10, and I haven't yet figured out what it
> does, but it definitely doesn't format a tape.

Is Opcode #10 the "Enter MRSP Mode" or is that something else?

-ethan